Fluorine gas etches the surface of silicon into a series of angular peaks that, when viewed with a powerful microscope, look much like the pyramid pattern in the sound-proofing foam shown above. Researchers at PPPL have now modeled how these peaks form in silicon, creating a material that is highly light absorbent. Credit: Pixabay/CC0 Public Domain

Topics: Energy, Environment, Materials Science, Nanomaterials, Solar Power

Researchers at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have developed a new theoretical model explaining one way to make black silicon, an important material used in solar cells, light sensors, antibacterial surfaces, and many other applications.

Black silicon is made when the surface of regular silicon is etched to produce tiny nanoscale pits on the surface. These pits change the color of the silicon from gray to black and, critically, trap more light, an essential feature of efficient solar cells.

While there are many ways to make black silicon, including some that use the charged, fourth state of matter known as plasma, the new model focuses on a process that uses only fluorine gas. PPPL Postdoctoral Research Associate Yuri Barsukov said the choice to focus on fluorine was intentional: The team at PPPL wanted to fill a gap in publicly available research. While some papers have been published about the role of charged particles called ions in the production of black silicon, not much has been published about the role of neutral substances, such as fluorine gas.

"We now know—with great specificity—the mechanisms that cause these pits to form when fluorine gas is used," said Barsukov, one of the authors of a new paper about the work, appearing in the Journal of Vacuum Science & Technology A.

"This kind of information, published publicly and openly available, benefits us all, whether we pursue further knowledge into the basic knowledge that underlines such processes or we seek to improve manufacturing processes," Barsukov added.

How black silicon, a prized material used in solar cells, gets its dark, rough edge, Rachel Kremen, Princeton Plasma Physics Laboratory

Significant Li plating capacity from Si anode. a, Li discharge profile in a battery of Li/graphite–Li_5.5PS_4.5Cl_1.5 (LPSCl1.5)–LGPS–LPSCl1.5–SiG at current density 0.2 mA cm^–2 at room temperature. Note that SiG was made by mixing Si and graphite in one composite layer. Inset shows the schematic illustration of stages 1–3 based on SEM and EDS mapping, which illustrate the unique Li–Si anode evolution in solid-state batteries observed experimentally in Figs. 1 and 2. b, FIB–SEM images of the SiG anode at different discharge states (i), (ii), and (iii) corresponding to points 1–3 in a, respectively. c, SEM–EDS mapping of (i), (ii), and (iii), corresponding to SEM images in b, where carbon signal (C) is derived from graphite, oxygen (O) and nitrogen (N) signals are from Li metal reaction with air and fluorine (F) is from the PTFE binder. d, Discharge profile of battery with cell construction Li-1M LiPF6 in EC/DMC–SiG. Schematics illustrate typical Si anode evolution in liquid-electrolyte batteries. e, FIB–SEM image (i) of SiG anode following discharge in the liquid-electrolyte battery shown in d; zoomed-in image (ii). Credit: Nature Materials (2024). DOI: 10.1038/s41563-023-01722-x

Topics: Applied Physics, Battery, Chemistry, Climate Change, Electrical Engineering, Mechanical Engineering

Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new lithium metal battery that can be charged and discharged at least 6,000 times—more than any other pouch battery cell—and can be recharged in a matter of minutes.

The research not only describes a new way to make solid-state batteries with a lithium metal anode but also offers a new understanding of the materials used for these potentially revolutionary batteries.

The research is published in Nature Materials.

"Lithium metal anode batteries are considered the holy grail of batteries because they have ten times the capacity of commercial graphite anodes and could drastically increase the driving distance of electric vehicles," said Xin Li, Associate Professor of Materials Science at SEAS and senior author of the paper. "Our research is an important step toward more practical solid-state batteries for industrial and commercial applications."

One of the biggest challenges in the design of these batteries is the formation of dendrites on the surface of the anode. These structures grow like roots into the electrolyte and pierce the barrier separating the anode and cathode, causing the battery to short or even catch fire.

These dendrites form when lithium ions move from the cathode to the anode during charging, attaching to the surface of the anode in a process called plating. Plating on the anode creates an uneven, non-homogeneous surface, like plaque on teeth, and allows dendrites to take root. When discharged, that plaque-like coating needs to be stripped from the anode, and when plating is uneven, the stripping process can be slow and result in potholes that induce even more uneven plating in the next charge.

Solid-state battery design charges in minutes and lasts for thousands of cycles, Leah Burrows, Harvard John A. Paulson School of Engineering and Applied Sciences, Tech Xplore

 Image source: CSO online - Swatting

Topics: Civics, Civil Rights, Civilization, Climate Change, Existentialism, Fascism, Star Trek

Bedlam is a scene of madness, chaos, or great confusion. The term bedlam comes from the name of a hospital in London, “Saint Mary of Bethlehem,” which was devoted to treating the mentally ill in the 1400s. Over time, the pronunciation of “Bethlehem” morphed into bedlam, and the term came to be applied to any situation where pandemonium prevails. Source: Vocabulary.com

Swatting is a criminal act that involves making hoax phone calls to emergency services to trick them into sending a response team to a person's address. The goal is to trick the emergency services into sending a Special Weapons and Tactics (SWAT) team to a supposed emergency, such as a shooting or hostage situation. Source: Google generative AI

According to Dictionary.com, terrorism is the use of violence or threats to intimidate or coerce a government or civilian population. The goal of terrorism is to achieve political, social, or ideological objectives.

International terrorism: Violent, criminal acts committed by individuals or groups inspired by, or associated with, designated foreign terrorist organizations or nations (state-sponsored). Source: FBI.gov

Domestic terrorism: Violent, criminal acts committed by individuals or groups to further ideological goals stemming from domestic influences, such as those of a political, religious, social, racial, or environmental nature. Source: FBI.gov

I grew up in an era of possibilities, of the struggle for rights by African Americans through Medgar Evers, Malcolm X, and Dr. Martin Luther King, Hispanic Americans through Casar Chavez, the LGBT community after the attack on Stonewall Inn in Greenwich Village, New York. The year after the assassination of three black Civil Rights leaders, we did what John F. Kennedy inspired us to do one year later, and Dr. King, the Star Trek fan who talked Nichele Nichols out of quitting the show, never lived to see.

But we live in now, where in the early 2000s, a younger man who wasn't on the planet tried to convince me that my Saturday morning cartoons the day before hadn't been interrupted by an important event: the Moon Landing of Apollo 11 on July 20, 1969 (Sunday). His evidence was, of course, a grainy video on YouTube. I'm certain that the conspiracy theorists are already gearing up for Artemis. "Deep fake" has probably improved the tech for denial.

The president who inspired the mission, John F. Kennedy, led the sad cavalcade of assassinations rash in the 1960s. The president who spoke to the astronauts was Richard Nixon, the same who ran on a "law and order" platform, scaring the bejesus out of citizens he wanted to govern because of the bedlam, the chaos, the great confusion on college campuses like Kent State and NC A&T as students protested the Vietnam conflict that nobody understood, and no one wanted, and for the words in our founding documents that stated, "all men are created equal." The president who saluted astronauts would win reelection in a landslide and lose his job due to Watergate larceny.

The revered founders were, of course, referencing only themselves and their progeny. They had no concept of descendants of their chattel workforce becoming lawyers, engineers, educators, scientists, astronauts, mayors of towns, governors, state representatives, congressional representatives, senators, presidents of universities that directly benefited from slavery, or President or Vice President of the United States. Some of their jurists would obfuscate this possibility and give the interpretation of The Constitution by grammatically spitballing the pious-sounding, pseudo-academic name of "originalism."

We are here now, at the dawn of the second quarter of the 21st century. Nothing like September 11, 2001, was conceivable to a child in 1969 in the last year of a novel science fiction series called "Star Trek" where it seemed, 200 years into the future, we had "figured it out," we had put down the rocks of racism, sexism, silliness and decided to work together towards a common goal of survival on Earth and among the stars. Superluminal speeds and Heisenberg-defying transporters were plot devices; everyone was in on the joke.

Nothing like January 6, 2021, twenty years from an international terrorist assault on our shores that domestic terrorism would bring bedlam to the U.S. Capitol, medieval jousting and bludgeoning Capitol and Metro Police officers, tasing them, bear-spraying them, killing them, urinating and spreading feces, which in and of itself is a sign of mental illness Saint Mary of Bethlehem was constructed to mitigate. Then, poof! It would go away, redefined from insurrection to tourists gone bad (when no tours were scheduled during the pandemic), Antifa (ahem: anti-fascists) to finally "a beautiful day, full of love."

Towards the end of the second quarter of the 21st Century, we will likely see climate disruption at an irreversible, unpredictable pace. The world population will be increased to ~9.7 billion, and by 2100, ~10.4 billion. There are a few new posts in 2023, but a lot of inoperable links on the 100-year starship website (like "mailing lists" and "contact us"). From here until 2100, it doesn't give us a century to construct a generation's vessel or to solicit and train a crew for a one-way trip on the culturally narcissistic need for humans to survive their hubris expressed on this planet since the dinosaurs were too dumb to have scientists.

It would seem, though, even with the scientists and experts, we have allowed the know-it-alls, who know nothing, primacy because they're so loud. They demand attention to feed a narcissistic ego, blustering and ever-terrified that we will realize that they are nincompoops with no applicable skillsets. Conspiracy theories are tailor-made for people who won't read, study, or take the time to comprehend hard subjects and are rewarded lucratively for slavish devotion to bull crap. We have allowed our lizard brains to lead and the blowhard simpletons to rule us to ruin. They alone cannot fix or build a starship.

We are here now as the "rule of law" is being tested as it has never been before, to the point that we're being gaslit to ask if such a thing ever existed and if we can get by with WHATABOUTISM instead of democracy, tyranny instead of freedom.

Judges, Special Councils, Clerks, and politicians are being swatted doxxed; elected officials are receiving death threats because misinformation is being spread on social media like feces to infect the lizard portion of our brains, where fear and anger dwell, exploited for ratings, votes, and to sell products online and between archaic commercials. The only thing on the other side of bedlam is anarchy. That is a poor substitute for a federal republic that has existed for over 246 years and could easily be gone in a fortnight.

June: We have to run.
Luke: What?
June: We waited last time. We waited too long, and we didn't see how much they hated us. I lost you, and then we lost Hannah.
Luke: Are we just gonna forget about her now?
June: We will never ever forget about her, but we cannot help her if we are dead. It's changing, Luke. This country is changing.
Luke: No, Canada's not Gilead.
June: America wasn't Gilead until it was, and then it was too fuckin' late. Luke, we have to go. We have to run. Now.

Source: TV fanatic, "The Handmaid's Tale," by Margaret Atwood on Hulu

PAC1R-expressing dorsal raphe neurons in the mouse brain (red) serve as the projection targets for PACAP parabrachial neurons to mediate panic-like behavioral and physical symptoms. Credit: Salk Institute

Topics: Biology, Medicine, Research, Science

Overwhelming fear, sweaty palms, shortness of breath, rapid heart rate—these are the symptoms of a panic attack, which people with panic disorder have frequently and unexpectedly. Creating a map of the regions, neurons, and connections in the brain that mediate these panic attacks can provide guidance for developing more effective panic disorder therapeutics.

Now, Salk researchers have begun to construct that map by discovering a brain circuit that mediates panic disorder. This circuit consists of specialized neurons that send and receive a neuropeptide—a small protein that sends messages throughout the brain—called PACAP. What's more, they determined that PACAP and the neurons that produce its receptor are possible druggable targets for new panic disorder treatments.

The findings were published in Nature Neuroscience.

"We've been exploring different areas of the brain to understand where panic attacks start," says senior author Sung Han, associate professor at Salk.

"Previously, we thought the amygdala, known as the brain's fear center, was mainly responsible—but even people who have damage to their amygdala can still experience panic attacks, so we knew we needed to look elsewhere. Now, we've found a specific brain circuit outside of the amygdala that is linked to panic attacks and could inspire new panic disorder treatments that differ from currently available panic disorder medications that typically target the brain's serotonin system."

Scientists uncover key brain pathway mediating panic disorder symptoms, Salk Institute.

Scientists have developed amorphous silicon carbide, a strong and scalable material with potential uses in microchip sensors, solar cells, and space exploration. This breakthrough promises significant advancements in material science and microchip technology. An artist’s impression of amorphous silicon carbide nanostrings testing to its limit tensile strength. Credit: Science Brush

Topics: Applied Physics, Chemistry, Materials Science, Nanomaterials, Semiconductor Technology

A new material that doesn’t just rival the strength of diamonds and graphene but boasts a yield strength ten times greater than Kevlar, renowned for its use in bulletproof vests.

Researchers at Delft University of Technology, led by assistant professor Richard Norte, have unveiled a remarkable new material with the potential to impact the world of material science: amorphous silicon carbide (a-SiC).

Beyond its exceptional strength, this material demonstrates mechanical properties crucial for vibration isolation on a microchip. Amorphous silicon carbide is particularly suitable for making ultra-sensitive microchip sensors.

The range of potential applications is vast, from ultra-sensitive microchip sensors and advanced solar cells to pioneering space exploration and DNA sequencing technologies. The advantages of this material’s strength, combined with its scalability, make it exceptionally promising.

Researchers at Delft University of Technology, led by assistant professor Richard Norte, have unveiled a remarkable new material with the potential to impact the world of material science: amorphous silicon carbide (a-SiC).

The researchers adopted an innovative method to test this material’s tensile strength. Instead of traditional methods that might introduce inaccuracies from how the material is anchored, they turned to microchip technology. By growing the films of amorphous silicon carbide on a silicon substrate and suspending them, they leveraged the geometry of the nanostrings to induce high tensile forces. By fabricating many such structures with increasing tensile forces, they meticulously observed the point of breakage. This microchip-based approach ensures unprecedented precision and paves the way for future material testing.

Why the focus on nanostrings? “Nanostrings are fundamental building blocks, the foundation that can be used to construct more intricate suspended structures. Demonstrating high yield strength in a nanostring translates to showcasing strength in its most elemental form.”

10x Stronger Than Kevlar: Amorphous Silicon Carbide Could Revolutionize Material Science, Delft University Of Technology

Scandium is the only known elemental superconductor to have a critical temperature in the 30 K range. This phase diagram shows the superconducting transition temperature (T_c) and crystal structure versus pressure for scandium. The measured results on all the five samples studied show consistent trends. (Courtesy: Chinese Phys. Lett. 40 107403)

Topics: Applied Physics, Chemistry, Condensed Matter Physics, Materials Science, Superconductors, Thermodynamics

Scandium remains a superconductor at temperatures above 30 K (-243.15 Celsius, -405.67 Fahrenheit), making it the first element known to superconduct at such a high temperature. The record-breaking discovery was made by researchers in China, Japan, and Canada, who subjected the element to pressures of up to 283 GPa – around 2.3 million times the atmospheric pressure at sea level.

Many materials become superconductors – that is, they conduct electricity without resistance – when cooled to low temperatures. The first superconductor to be discovered, for example, was solid mercury in 1911, and its transition temperature T_c is only a few degrees above absolute zero. Several other superconductors were discovered shortly afterward with similarly frosty values of T_c.

In the late 1950s, the Bardeen–Cooper–Schrieffer (BCS) theory explained this superconducting transition as the point at which electrons overcome their mutual electrical repulsion to form so-called “Cooper pairs” that then travel unhindered through the material. But beginning in the late 1980s, a new class of “high-temperature” superconductors emerged that could not be explained using BCS theory. These materials have Tc above the boiling point of liquid nitrogen (77 K), and they are not metals. Instead, they are insulators containing copper oxides (cuprates), and their existence suggests it might be possible to achieve superconductivity at even higher temperatures.

The search for room-temperature superconductors has been on ever since, as such materials would considerably improve the efficiency of electrical generators and transmission lines while also making common applications of superconductivity (including superconducting magnets in particle accelerators and medical devices like MRI scanners) simpler and cheaper.

Scandium breaks temperature record for elemental superconductors, Isabelle Dumé, Physics World

Image source: Facebook meme

Topics: Civics, Civil Rights, Civilization, Climate Change, Democracy, Existentialism, Fascism

What is lost in the above Facebook meme: 5:00 - 5:30 pm was typically your local news. 6:00 - 6:30 pm, before “Bewitched,” was your international news, the Walter Cronkites, Mike Wallaces, and Harry Reasoner’s time to scare the living crap out of you that the world beyond our borders, during and post-Vietnam, was still going over a cliff. Hence, there is a serial lineup of sitcom talent for an obvious purpose. We also got cut off at midnight, white noise after the anthem, and a nation avoided insomnia because no 24-hour options existed.

Dr. Neil Postman was a Professor of Journalism at NYU. I will recommend two books in this post: “Amusing Ourselves to Death: Public Discourse in the Age of Showbusiness” and “How To Watch TV News.” Both are essential in an era of gaslighting and misinformation.

Above, you peer a lineup that existed on network television in the early 1970s and continued throughout the Reagan era. It went essentially unchanged until the early 2000s.

Though I enjoy watching Star Trek on streaming services, this is recent. Enterprise, like Voyager, Deep Space Nine, The Next Generation, and The Original Series were all available on standard channels and cable television. Discovery and Strange New Worlds were first launched by CBS Streaming and then bought out/transferred to Paramount Plus. Nostalgia requires a checking account.

Saturday morning cartoons ENDED in September 2014. I can at least see Bugs Bunny on YouTube. Occasionally, Facebook brings up Tom and Jerry, The Roadrunner, etc., on my newsfeed because the algorithms have read my desires and given me what I would most likely wish to see. In this case, nostalgia is free, but now, more than ever, I am the product.

“Many decisions about the form and content of news programs are made on the basis of information about the viewer (Internet history), the purpose of which is to keep the viewers watching so that they will be exposed to the commercials” (bots and propaganda).

Neil Postman, Steven Powers, “How to Watch TV News.”

ABC, CBS, and NBC are running game shows and reality shows in prime time where sitcoms, dramas, actors, and writers used to be employed. As “Amusing Ourselves to Death” puts it, the news, 24-7-365 (366 on leap years), has become our entertainment. How did this happen?

In 1972, Richard Milhouse Nixon won a landslide election, winning 49/50 states and 520 electoral votes to his Democratic opponent, George McGovern’s 17. “Other” received one electoral vote. Judging from the redness of the map, a lot of African Americans voted for “law and order” or did not bother to show up at the polls. The Vietnam War trudged on, and the body count approached a staggering 282,000 U.S. and allied military deaths.

Two years later, in 1974, Nixon resigned in disgrace after the revelations of the Watergate burglary investigation by Carl Bernstein and Bob Woodward, the subsequent investigations, and the relentless media coverage that swayed a nation from electoral route to, maybe we need to get rid of the president who emphatically stated “I am not a crook” might be a crook. In this case, presidential larceny could not be tolerated.

This was possible because Americans had a shared reality innocently framed by what we viewed for entertainment: as many kids in Rural Hall watched Archie Bunker and Saturday cartoons as my neighbors did in East Winston. Although we were in the throws of forced busing due to the 9-0 Supreme Court Brown vs. Board Decision in 1954 (“all-deliberate speed” came about 20 years later in North Carolina), these shows gave us a framework for conversation, jokes, laughter, and community. The above shows weren’t the bastions of diversity - only “Room 222” had a diverse cast - but a shared entertainment experience made us feel more “united” than we do now.

Roger Ailes was an aide in the Nixon administration. After Nixon’s ouster, Ailes wanted a news network that was friendly to conservatives and biased against liberals. According to a Rolling Stones article, he created a propaganda network and a fear factory. The fear seems to be in the workplace and projected to its audience, absorbing propaganda nightly. After his death, it still runs top-down, like Pravda, not like a news organization. Since it’s profitable, even after the Dominion lawsuit and the upcoming lawsuit with Smartmatics, the network thinks it can absorb the legal losses of billion-dollar settlements and survive. That is frightening power and reach.

I cannot leave their rivals out of this. CNN was the first parent cable news network that “birthed” Fox and MSNBC from “Crossfire” (Paul Begala on the left, and Tucker Carlson on the right). They all follow a framework of “what should you fear of the ‘other.’” Television networks have always competed for viewership through television shows staffed by writers who create content. Shonda Rhimes’ “Grey’s Anatomy,” “Scandal,” and “How To Get Away With Murder” on the public airwaves are distant memories. You need a streaming subscription now. I pay for several, but it’s not normal, nor should it be seen as normal.

What happens when your “United States” has no framework for a shared reality?

The Republican frontrunner/former reality TV huckster has not debated in the primary and doesn’t need to. He probably won’t in the general election either. He presided over the deaths of 1.13 million Americans due to the botched handling of the Coronavirus that, arguably, his Republican predecessor (43) put the medical professionals in place, and his Democratic successor (44) continued and expanded. Forty-five pulled them out of China to “own the libs” and found himself and the country flatfooted to identify whether the virus came from a food market or a lab leak. The U.S. had the worst performance of Western nations, exacerbated by not promoting masks and pushing non-cures like hydroxychloroquine and ivermectin.

But, the party and a sizeable amount of the nation want to give him the nuclear codes again because, heck, he's entertaining, in a perverse, psychotic sense. For example, the fictional Batman is grim, determined, disciplined, and rarely smiles in the comics. His nemesis, Joker, is a murdering psychopath, but Jack Nickelson and Heath Ledger made him "entertaining." We all watched both versions of Mayhem.

If you can sell soap to 1950s housewives, you can sell racism, sexism, homophobia, and xenophobia to the rubes who can’t, or won’t, afford streaming alternatives. And sell soap.

You “keep the viewers watching” not with clever sitcoms and nighttime dramas like “Dallas” and “Dynasty,” but anger at the “other.” Who is “other?” The people who don’t watch your network share your curated views. One side is “woke,” the other is fascist. No one talks.

We’ve had decades of Civil War reenactments in city parks, and no one died. Therefore, there is no appreciation that in an actual, modern Civil War, the death toll would likely overrun the hospitals more than Sars-CoV-2 did with the alpha through delta variants. The U.S. dollar would cease to be the currency of global trade, and world order would collapse into fiefdoms, dictatorships, and warlords, which would be fine to oligarchs who separated themselves from society generations ago and only come down from Mount Olympus to influence/bribe our politicians. Homo Sapiens (Latin: “wise men”) should choose a more apropos name: Homo Stultus (“stupid men”), and fully own Idiocracy. It didn’t need 500 years.

Humans are storytelling creatures. We need entertainment in the form of books, poetry, well-acted plays, movies, and television shows. We also need knowledge, facts, and accurate history to make a collective assessment of where we’ve been collectively as a nation and a species and where we’re going as a nation - perfecting The Union or over a cliff. Karl Rovian “created realities” nor Neo-Nazi book bans accomplish either necessity.

“Infotainment” is neither news nor entertaining, and Dr. Postman’s warning about the parent of this debacle, Ted Turner’s HBO-inspired infotainment, CNN, rings from his grave:

“What Orwell feared were those who would ban books (well?). What Huxley feared was that there would be no reason to ban a book, for there would be no one who wanted to read one. Orwell feared those who would deprive us of information. Huxley feared those who would give us so much that we would be reduced to passivity and egoism. Orwell feared that the truth would be concealed from us. Huxley feared the truth would be drowned in a sea of irrelevance. Orwell feared we would become a captive culture. Huxley feared we would become a trivial culture, preoccupied with some equivalent of the feelies, the orgy porgy, and the centrifugal bumblepuppy. As Huxley remarked in Brave New World Revisited, the civil libertarians and rationalists who are ever on the alert to oppose tyranny “failed to take into account man’s almost infinite appetite for distractions.” In 1984, Orwell added, people are controlled by inflicting pain. In Brave New World, they are controlled by inflicting pleasure. In short, Orwell feared that what we fear will ruin us. Huxley feared that what we desire will ruin us.

“This book is about the possibility that Huxley, not Orwell, was right.”

Neil Postman, Amusing Ourselves to Death: Public Discourse in the Age of Show Business

(The parenthesis in both Postman quotes are my adds for emphasis, as are any bold type.)

Illustration of a UCLA-developed solid-state thermal transistor using an electric field to control heat movement. Credit: H-Lab/UCLA

Topics: Applied Physics, Battery, Chemistry, Electrical Engineering, Energy, Thermodynamics

A new thermal transistor can control heat as precisely as an electrical transistor can control electricity.

From smartphones to supercomputers, electronics have a heat problem. Modern computer chips suffer from microscopic “hotspots” with power density levels that exceed those of rocket nozzles and even approach that of the sun’s surface. Because of this, more than half the total electricity burned at U.S. data centers isn’t used for computing but for cooling. Many promising new technologies—such as 3-D-stacked chips and renewable energy systems—are blocked from reaching their full potential by errant heat that diminishes a device’s performance, reliability, and longevity.

“Heat is very challenging to manage,” says Yongjie Hu, a physicist and mechanical engineer at the University of California, Los Angeles. “Controlling heat flow has long been a dream for physicists and engineers, yet it’s remained elusive.”

But Hu and his colleagues may have found a solution. As reported last November in Science, his team has developed a new type of transistor that can precisely control heat flow by taking advantage of the basic chemistry of atomic bonding at the single-molecule level. These “thermal transistors” will likely be a central component of future circuits and will work in tandem with electrical transistors. The novel device is already affordable, scalable, and compatible with current industrial manufacturing practices, Hu says, and it could soon be incorporated into the production of lithium-ion batteries, combustion engines, semiconductor systems (such as computer chips), and more.

Scientists Finally Invent Heat-Controlling Circuitry That Keeps Electronics Cool, Rachel Newur, Scientific American

A view of the assembled experimental JT-60SA Tokamak nuclear fusion facility outside Tokyo, Japan. JT-60SA.ORG

Topics: Applied Physics, Economics, Energy, Heliophysics, Nuclear Fusion, Quantum Mechanics

Japan and the European Union have officially inaugurated testing at the world’s largest experimental nuclear fusion plant. Located roughly 85 miles north of Tokyo, the six-story JT-60SA “tokamak” facility heats plasma to 200 million degrees Celsius (around 360 million Fahrenheit) within its circular, magnetically insulated reactor. Although JT-60SA first powered up during a test run back in October, the partner governments’ December 1 announcement marks the official start of operations at the world’s biggest fusion center, reaffirming a “long-standing cooperation in the field of fusion energy.”

The tokamak—an acronym of the Russian-language designation of “toroidal chamber with magnetic coils”—has led researchers’ push towards achieving the “Holy Grail” of sustainable green energy production for decades. Often described as a large hollow donut, a tokamak is filled with gaseous hydrogen fuel that is then spun at immense high speeds using powerful magnetic coil encasements. When all goes as planned, intense force ionizes atoms to form helium plasma, much like how the sun produces its energy.

[Related: How a US lab created energy with fusion—again.]

Speaking at the inauguration event, EU energy commissioner Kadri Simson referred to the JT-60SA as “the most advanced tokamak in the world,” representing “a milestone for fusion history.”

“Fusion has the potential to become a key component for energy mix in the second half of this century,” she continued.

The world’s largest experimental tokamak nuclear fusion reactor is up and running, Andrew Paul, Popular Science.

High-dimensional quantum transport enabled by nonlinear detection. In our concept, information is encoded on a coherent source and overlapped with a single photon from an entangled pair in a nonlinear crystal for up-conversion by sum frequency generation, the latter acting as a nonlinear spatial mode detector. The bright source is necessary to achieve the efficiency required for nonlinear detection. Information and photons flow in opposite directions: one of [the] Bob’s entangled photons is sent to Alice and has no information, while a measurement on the other in coincidence with the upconverted photon establishes the transport of information across the quantum link. Alice need not know this information for the process to work, while the nonlinearity allows the state to be arbitrary and unknown dimension and basis. Credit: Nature Communications (2023). DOI: 10.1038/s41467-023-43949-x

Topics: Applied Physics, Computer Science, Cryptography, Cybersecurity, Quantum Computers, Quantum Mechanics, Quantum Optics

Nature Communications published research by an international team from Wits and ICFO- The Institute of Photonic Sciences, which demonstrates the teleportation-like transport of "patterns" of light—this is the first approach that can transport images across a network without physically sending the image and a crucial step towards realizing a quantum network for high-dimensional entangled states.

Quantum communication over long distances is integral to information security and has been demonstrated with two-dimensional states (qubits) over very long distances between satellites. This may seem enough if we compare it with its classical counterpart, i.e., sending bits that can be encoded in 1s (signal) and 0s (no signal), one at a time.

However, quantum optics allow us to increase the alphabet and to securely describe more complex systems in a single shot, such as a unique fingerprint or a face.

"Traditionally, two communicating parties physically send the information from one to the other, even in the quantum realm," says Prof. Andrew Forbes, the lead PI from Wits University.

"Now, it is possible to teleport information so that it never physically travels across the connection—a 'Star Trek' technology made real." Unfortunately, teleportation has so far only been demonstrated with three-dimensional states (imagine a three-pixel image); therefore, additional entangled photons are needed to reach higher dimensions.

'Teleporting' images across a network securely using only light, Wits University, Phys.org.

Source: Brookings Institution

Topics: Civics, Civil Rights, Civilization, Democracy, Existentialism, Fascism

Cate Cox and Brittany Watts: Their last names rhyme, but their circumstances couldn't be more diametrically different from one another.

Cate Cox is a married suburban mother with two children. She previously lived in a suburb of Dallas, Texas, but due to her condition, she had to flee her state. A complication with her pregnancy put her life at risk and the possibility that she might not be able to conceive again if her pregnancy weren't ended expeditiously through a procedure now outlawed in Texas.

Brittany Watts, an African American woman, had a stillborn, unfortunately, in the toilet. The fetus was found in the drain, and she was charged with abuse.

Mrs. Cox eventually left Texas for the procedure, having the financial means to leave and get the healthcare that she desired.

Ms. Watts was a frightened young woman who had left the hospital twice before her miscarriage. Yet she's charged with felony abuse of a corpse in Ohio.

Abstract

The Effects of the Dobbs Decision on Fertility*

The U.S. Supreme Court decision in Dobbs v. Jackson Women’s Health Organization sparked the most profound transformation of the landscape of abortion access in 50 years. We provide the first estimates of the effects of this decision on fertility using a preregistered synthetic difference-in-differences design applied to newly released provisional natality data for the first half of 2023. The results indicate that states with abortion bans experienced an average increase in births of 2.3 percent relative to states where abortion was not restricted.

Source: The Effects of the Dobbs Decision on Fertility, IZA Institute of Labor Economics

The Dobbs Decision was a strategic salvo shot at the year 2045:

New census population projections confirm the importance of racial minorities as the primary demographic engine of the nation’s future growth, countering an aging, slow-growing, and soon-to-be-declining white population. The new statistics project that the nation will become “minority white” in 2045. During that year, whites will comprise 49.7 percent of the population in contrast to 24.6 percent for Hispanics, 13.1 percent for blacks, 7.9 percent for Asians, and 3.8 percent for multiracial populations (see Figure 1).

The shift is the result of two trends. First, between 2018 and 2060, gains will continue in the combined racial minority populations, growing by 74 percent. Second, during this time frame, the aging white population will see a modest immediate gain through 2024 and then experience a long-term decline through 2060, a consequence of more deaths than births (see Figure 2)

Source: Brookings Institution

24.6 (Hispanics) + 13.1 (African Americans) + 7.9 (Asians) + 3.8 (Multiracial) + 0.9 (Other) = 50.3%, which is apparently an existential crisis on the right because "white" supremacy is anxiously numerical.

Excerpt from "Black Labor, White Wealth: The Search for Power and Economic Justice," (August 1, 1994) Claude Anderson, Ed. D., Chapter 2: Power and Black Progress:

Chapter 2, page 33, subsection titled:

Numerical Population Power

     In a democratic society, the numerical majority wins, rules, and decides. The theoretical rights of a minority may or may not be respected, especially if they are a planned minority. Numerical population power is the power that comes to those groups that acquire power through their sheer size. The black population peaked in the 1750s when slaves and free blacks accounted for approximately 33 percent of the total population. The high numerical strength of blacks caused fear and concern among whites. They feared the loss of their own numerical power. Word of black Haitians' successful slave revolt in the 1790s had spread across America and reportedly ignited several slave revolts in Southern states.

     The First U.S. Congress enacted the first naturalization law that declared America to be a nation for "whites only." The Naturalization Act and other income incentives attracted a mass influx of legal and illegal European ethnicities, followed by Asian and Hispanic immigrants a century later. The immigration quota for blacks remained zero until their total percentage of the population declined to nine percent. By making blacks a planned numerical minority, white society assured its dominance in a democratic society where the majority always wins. Source: Sample chapter

Hence, a national ban is actually what they want. Fifteen weeks will be sold as a "reasonable" compromise, and then it will be paired down to the goose egg that is the actual target. Hence, the hostility towards mixed-race couples and multiracial children from their union: they're not on the "white" team. Hence, the hostility towards the LGBTQ community and whether or not they conceive by surrogate or artificial insemination, their union does not produce enough "white" babies to maintain a numerical majority for the "white" team. Mrs. Cox and upper-middle-class suburban women like her will always have the means and the money to flee any complications and save future childbearing years. Ms. Watt will have one of two options: either flush her undesired fetus while in a state of shock down a toilet or die from complications that she cannot afford to mitigate.

The American Eugenics Movement, unfortunately, had a boost from prominent scientists who wished to rid the world of the "feebleminded" and the unfit. They did this through forced sterilization and control over who could get married (to procreate in the first place). If you've ever used the terms "well-bred" or "good breeding," those originate from eugenics, now accepted as a pseudoscience, once promoted by one of the founders of the transistor and Nobel laureate in Physics, William Schockley. Coupled with southern Jim Crow, eugenics-on-steroids in the hands of the Nazis led to the Holocaust.

Nazi authorities created the Lebensborn program to increase Germany’s population. Pregnant German women deemed “racially valuable” were encouraged to give birth to their children at Lebensborn homes. During World War II, the program became complicit in the kidnapping of foreign children with physical features considered “Aryan” by the Nazis.

Source: Lebensborn Program/U.S. Holocaust Memorial Museum

More Than 700,000 Ukrainian Children Taken To Russia Since Full-Scale War Started, Official Says, Radio Free Europe, Radio Liberty

Dramatic Population Drop in Russia, as War, COVID and Emigration Exacerbate Declining Births, Health Policy Watch

 The First U.S. Congress enacted the first naturalization law that declared America to be a nation for "whites only." The Naturalization Act and other income incentives attracted a mass influx of legal and illegal European ethnicities, followed by Asian and Hispanic immigrants a century later. The immigration quota for blacks remained zero until their total percentage of the population declined to nine percent. By making blacks a planned numerical minority, white society assured its dominance in a democratic society where the majority always wins. Source: Sample chapter

If one is desperate to maintain a majority or "goose your numbers," you might be capable of anything to achieve those ends.

Very soon in the founding of a new nation, however, White Christians began to establish their well-being by using the resources, bodies, and lives of others. Through their own "witchcraft," European Christians employed a mysterious and threatening potency that was the practice of using the other for their own gain. In [James W.] Perkinson's description, through the projects of the modern Christian empire, "a witchery" of heretofore unimaginable potency ravaged African and aboriginal cultures...For Perkinson, the witchcraft of White supremacy was conjured through racial discourse as an ideological and practical frame that he identifies as the 'quintessential witchery of modernity.'... In Perkinson's chilling words, "Whiteness, under the veneer of its 'heavenly' pallor, is a great grinding witch tooth, sucking blood and tearing flesh without apology."

Excerpts: The Sin of White Supremacy: Christianity, Racism & Religious Diversity in America," by Jeanine Hill Fletcher, CH 2: The Witchcraft of White Supremacy, 47, 48.

Researchers are working to overcome challenges related to nanoscale optoelectronic interconnects, which use light to transmit signals around an integrated circuit. IMAGE: PROVIDED BY NCNST

Topics: Biology, Materials Science, Nanoengineering, Nanomaterials, Nanotechnology, Quantum Mechanics

The promise of nanotechnology, the engineering of machines and systems at the nanoscale, is anything but tiny. Over the past decade alone, there has been an explosion in research on how to design and build components that solve problems across almost every sector, and nanotechnology innovations have led to huge advancements in our quest to address humanity’s grand challenges, from healthcare to water to food security.

Like any area of scholarship, there are still so many unknowns. And yet, there are more talented scientists and engineers endeavoring to better comprehend and harness the power of nanotechnology than ever before. The future is bright for nanotechnology and its applications.

In celebration of its 20th anniversary, the National Center for Nanoscience and Technology, China (NCNST), a subsidiary of the prestigious Chinese Academy of Sciences, partnered with Science Custom Publishing to survey nanoscience experts from the journal and across the globe about the most knotty and fascinating questions that still need to be answered if we are to advance nanotechnology in society.

The Tiny Ten: Experts weigh in on the top 10 challenges remaining for nanoscience & nanotechnology, Science Magazine

The 3D model of Menga was drawn with AutoCAD, showing the biofacies (microfacies) present in the stones. The fourth pillar, currently missing, has been added, while capstones C-2, C-3, C-4, and C-5 have been removed in order to show the interior of the monument (Lozano Rodríguez et al.²⁵). (a) Pillar P-3 with examples of biofacies (a1–a3 observed in hand specimen). (b) Orthostat O-15 with examples of biofacies (b1–b4 observed petrographically) and in hand specimen (b5). (c) Orthostat O-8 with examples observed petrographically (crossed polars) (c1,c2). (d) Orthostat O-5 with examples observed through the petrographic microscope (d1,d2). The star-shaped symbol indicates the place where a section was made for the petrographic study—Qtz: Quartz (designations after Kretz,⁴⁹).

Topics: Applied Physics, Archaeology, Dark Humor, History

Abstract

The technical and intellectual capabilities of past societies are reflected in the monuments they were able to build. Tracking the provenance of the stones utilized to build prehistoric megalithic monuments through geological studies is of utmost interest for interpreting ancient architecture as well as contributing to their protection. According to the scarce information available, most stones used in European prehistoric megaliths originate from locations near the construction sites, which would have made transport easier. The Menga dolmen (Antequera, Malaga, Spain), listed in UNESCO World Heritage since July 2016, was designed and built with stones weighing up to nearly 150 tons, thus becoming the most colossal stone monument built in its time in Europe (c. 3800–3600 BC). Our study (based on high-resolution geological mapping as well as petrographic and stratigraphic analyses) reveals key geological and archaeological evidence to establish the precise provenance of the massive stones used in the construction of this monument. These stones are mostly calcarenites, a poorly cemented detrital sedimentary rock comparable to those known as 'soft stones' in modern civil engineering. They were quarried from a rocky outcrop located at a distance of approximately 1 km. In this study, it can be inferred the use of soft stone in Menga reveals the human application of new wood and stone technologies, enabling the construction of a monument of unprecedented magnitude and complexity.

The provenance of the stones in the Menga dolmen reveals one of the greatest engineering feats of the Neolithic. Scientific Reports, Nature

José Antonio Lozano Rodríguez, Leonardo García Sanjuán, Antonio M. Álvarez-Valero, Francisco Jiménez-Espejo, Jesús María Arrieta, Eugenio Fraile-Nuez, Raquel Montero Artús, Giuseppe Cultrone, Fernando Alonso Muñoz-Carballeda & Francisco Martínez-Sevilla

In this image, optical pulses (solitons) can be seen circling through conjoined optical tracks. (Image: Yuan, Bowers, Vahala, et al.) An animated gif is at the original link below.

Topics: Applied Physics, Astronomy, Electrical Engineering, Materials Science, Nanoengineering, Optics

(Nanowerk News) When we last checked in with Caltech's Kerry Vahala three years ago, his lab had recently reported the development of a new optical device called a turnkey frequency microcomb that has applications in digital communications, precision timekeeping, spectroscopy, and even astronomy.

This device, fabricated on a silicon wafer, takes input laser light of one frequency and converts it into an evenly spaced set of many distinct frequencies that form a train of pulses whose length can be as short as 100 femtoseconds (quadrillionths of a second). (The comb in the name comes from the frequencies being spaced like the teeth of a hair comb.)

Now Vahala, Caltech's Ted and Ginger Jenkins, Professor of Information Science and Technology and Applied Physics and executive officer for applied physics and materials science, along with members of his research group and the group of John Bowers at UC Santa Barbara, have made a breakthrough in the way the short pulses form in an important new material called ultra-low-loss silicon nitride (ULL nitride), a compound formed of silicon and nitrogen. The silicon nitride is prepared to be extremely pure and deposited in a thin film.

In principle, short-pulse microcomb devices made from this material would require very low power to operate. Unfortunately, short light pulses (called solitons) cannot be properly generated in this material because of a property called dispersion, which causes light or other electromagnetic waves to travel at different speeds, depending on their frequency. ULL has what is known as normal dispersion, and this prevents waveguides made of ULL nitride from supporting the short pulses necessary for microcomb operation.

In a paper appearing in Nature Photonics ("Soliton pulse pairs at multiple colors in normal dispersion microresonators"), the researchers discuss their development of the new micro comb, which overcomes the inherent optical limitations of ULL nitride by generating pulses in pairs. This is a significant development because ULL nitride is created with the same technology used for manufacturing computer chips. This kind of manufacturing technique means that these microcombs could one day be integrated into a wide variety of handheld devices similar in form to smartphones.

The most distinctive feature of an ordinary microcomb is a small optical loop that looks a bit like a tiny racetrack. During operation, the solitons automatically form and circulate around it.

"However, when this loop is made of ULL nitride, the dispersion destabilizes the soliton pulses," says co-author Zhiquan Yuan (MS '21), a graduate student in applied physics.

Imagine the loop as a racetrack with cars. If some cars travel faster and some travel slower, then they will spread out as they circle the track instead of staying as a tight pack. Similarly, the normal dispersion of ULL means light pulses spread out in the microcomb waveguides, and the microcomb ceases to work.

The solution devised by the team was to create multiple racetracks, pairing them up so they look a bit like a figure eight. In the middle of that '8,' the two tracks run parallel to each other with only a tiny gap between them.

Conjoined 'racetracks' make new optical devices possible, Nanowerk.

 Comparison of cathode volume changes in all-solid-state cells under low-pressure operation. Credit: Korea Institute of Science and Technology

Topics: Batteries, Chemistry, Climate Change, Lithium, Materials Science, Nanomaterials

Often referred to as the "dream batteries," all-solid-state batteries are the next generation of batteries that many battery manufacturers are competing to bring to market. Unlike lithium-ion batteries, which use a liquid electrolyte, all components, including the electrolyte, anode, and cathode, are solid, reducing the risk of explosion, and are in high demand in markets ranging from automobiles to energy storage systems (ESS).

However, devices that maintain the high pressure (10s of MPa) required for stable operation of all-solid-state batteries have problems that reduce the battery performance, such as energy density and capacity, and must be solved for commercialization.

Dr. Hun-Gi Jung and his team at the Energy Storage Research Center at the Korea Institute of Science and Technology (KIST) have identified degradation factors that cause rapid capacity degradation and shortened lifespan when operating all-solid-state batteries at pressures similar to those of lithium-ion batteries. The research is published in the journal Advanced Energy Materials.

Unlike previous studies, the researchers confirmed for the first time that degradation can occur inside the cathode as well as outside, showing that all-solid-state batteries can be operated reliably even in low-pressure environments.

In all-solid-state batteries, the cathode and anode have a volume change during repeated charging and discharging, resulting in interfacial degradation, such as side reaction and contact loss between active materials and solid electrolytes, which increase the interfacial resistance and worsen cell performance.

To solve this problem, external devices are used to maintain high pressure, but this has the disadvantage of reducing energy density as the weight and volume of the battery increase. Research is being conducted on the inside of the all-solid-state cell to maintain the performance of the cell, even in low-pressure environments.

Investigation of the degradation mechanism for all-solid-state batteries takes another step toward commercialization, National Research Council of Science and Technology.

Topics: Civics, Civil Rights, Civilization, Democracy, Existentialism, Fascism

I can hear an irritated counterthrust already. The president has not driven the United States into a recession during his almost seven years in office. Unemployment stands at a respectable 4.6 percent. Well, fine. But the other side of the ledger groans with distress: a tax code that has become hideously biased in favor of the rich; a national debt that will probably have grown 70 percent by the time this president leaves Washington; a swelling cascade of mortgage defaults; a record near-$850 billion trade deficit; oil prices that are higher than they have ever been; and a dollar so weak that for an American to buy a cup of coffee in London or Paris—or even the Yukon—becomes a venture in high finance.

And it gets worse. After almost seven years of this president, the United States is less prepared than ever to face the future. We have not been educating enough engineers and scientists, people with the skills we will need to compete with China and India. We have not been investing in the kinds of basic research that made us the technological powerhouse of the late 20th century. And although the president now understands—or so he says—that we must begin to wean ourselves from oil and coal, we have become more deeply dependent on both on his watch.

Up to now, the conventional wisdom has been that Herbert Hoover, whose policies aggravated the Great Depression, is the odds-on claimant for the mantle of “worst president” regarding stewardship of the American economy. Once Franklin Roosevelt assumed office and reversed Hoover’s policies, the country began to recover. The economic effects of Bush’s presidency are more insidious than those of Hoover, harder to reverse, and likely to be longer-lasting. There is no threat of America’s being displaced from its position as the world’s richest economy. But our grandchildren will still be living with and struggling with the economic consequences of Mr. Bush.

The Economic Consequences of Mr. Bush, Joseph E. Stiglitz, Vanity Fair, December 7, 2007

I am enjoying the New York Times bestseller by former Congresswoman Liz Cheney, Oath and Honor: A Memoir and a Warning. The book was sold out, so I bought the CDs to play on my car’s player as I casually drive to and from work. There are 11 CDs, and from the few I’ve listened to, she has an hour’s worth of material for each. The book is 384 pages.

I enjoy her erudite writing and observations of our current moment and crisis. Though we probably don’t agree on many things, I admire her integrity, love of her parents (particularly her dad), her family, and demonstrated fidelity to the US Constitution.

However, her dad was a part of the administration that Nobel laureate Dr. Stiglitz discusses in his Vanity Fair article. It was her dad who, instead of searching for a VP candidate, nominated himself. It was her dad who championed the disastrous war in Iraq, a country that did not attack us on September 11, 2001. He didn’t just “sex up” the intelligence about weapons of mass destruction in Iraq; he lied. That license led to thousands of Iraqis killed and the fertile ground from which sprang Al-Qaeda in Iraq, followed by ISIS. That license led to pathological licentiousness to lie more than 30,000 times in a four-year presidential term. “Deficits don’t matter” leads to truth not mattering—Post hoc ergo proctor hoc.

It was her dad who said:

“You know, Paul, Reagan proved deficits don’t matter,” he said, according to excerpts. Cheney continued: “We won the midterms [congressional elections]. This is our due.” A month later, in December 2002, Cheney told the Treasury secretary he was fired.

O’Neill says Cheney told him, `Deficits don’t matter,’ Chicago Tribune, January 12, 2004

I remember reading this on my Kindle: The Price of Loyalty: George W. Bush, the White House, and the Education of Paul O’Neill, Ron Suskind. For Liz’s dad, deficits didn’t matter. That drove the drunken stupor of tax cuts that led to the cliff we almost fell off in 2008. There was a real crisis when the Obama-Biden administration took office after the financial crash spawned by the “deficits don’t matter” philosophy.

Wall Street was, of course, bailed out over Main Street. COVID bailouts benefitted the rich. That’s why Wall Street is more than willing to do it again. Until we see some CEOs and Hedge Fund Managers frog-marched in shackles, what onus stops them?

The Dow Jones hit a record 37,000+ Thursday. Yet, we’re into how we “feel” about the economy. I don’t think it’s “feelings.”

Inflation soared across the globe last year, peaking near 11% in the eurozone and above 9% in the US.

The source of that high inflation has become a well-trodden line. Analysts have typically laid the blame on supply-chain bottlenecks created by excess demand during the COVID-19 pandemic and exacerbated by Russia’s invasion of Ukraine.

The war also increased energy prices, leading to further rises in inflation as suppliers factored in higher transport and running costs.

While this contributed to rising prices, the report finds that company profits increased at a much faster rate than costs did, in a process often dubbed “greedflation.”

Profits for companies in some of the world’s largest economies rose by 30% between 2019 and 2022, significantly outpacing inflation, according to the group’s research of 1,350 firms across the US, the UK, Europe, Brazil, and South Africa.

The biggest perpetrators were energy companies like Shell, Exxon Mobil, and Chevron, which were able to enjoy massive profits last year as demand moved away from Russian oil and gas.

A June study by the International Monetary Fund (IMF) found that 45% of eurozone inflation in 2022 could be attributed to domestic profits. Companies in a position to benefit most from higher commodity prices and supply-demand mismatches raised their profits by the most, the study found.

CEOs of the world’s biggest companies consistently sounded the alarm on inflation as a significant barrier to growth. Many blamed rising input costs on their own price hikes. However, lots of those CEOs appear to have instead used the panic of rising costs to pump up their balance sheet.

The biggest study of ‘greedflation’ yet looked at 1,300 corporations to find many of them were lying to you about inflation, Ryan Hogg, Yahoo Finance, December 8, 2023

In essence, gaslighting is the psychological manipulation of a person, usually over an extended period of time, that causes the victim to question the validity of their own thoughts, perception of reality, or memories and typically leads to confusion, loss of confidence and self-esteem, uncertainty of one’s emotional or mental stability, and a dependency on the perpetrator—the act or practice of grossly misleading someone, especially for one’s own advantage. Election season can create emotions spanning from immense anxiety all the way to extreme apathy. The public arguing, divisiveness, and competition for votes, including political gaslighting, can be overwhelming and exhausting.—Vernita Perkins and Leonard A. Jason, Merriam-Webster.

Political gaslighting has one objective: to undermine the truth, or more accurately, to undermine objective truth.

“Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.” Winston Smith, in “1984” by George Orwell. Under torture, O’Brien makes Winston say he sees five fingers when O’Brien is holding up four. The Party was the arbiter of truth, and “truth” was whatever the Party or O’Brien said it was.

“There are FOUR lights!” Jean Luc Picard shouted defiantly under torture by Gul Madred in Star Trek: The Next Generation: “Chain of Command, part II.”

There are strategies to combat gaslighting. Despair can be debilitating and a self-fulfilling prophecy if the worst possible outcome that you can think of happens.

The best strategy I know to combat despair is to work on a campaign that you’re passionate about. In 2012, it didn’t look like Barack Obama and Joe Biden would get re-elected against Mitt Romney and Paul Ryan (former Speaker of the House - remember him?). My wife and I volunteered to call from the campaign office of Sean Patrick Maloney, who we had never heard of. He won and became our Congressman as long as we lived in New York. He sadly lost his seat when congressional districts were redrawn, so he was competing for the same votes as another Democrat.

The best weapon against gaslighting is truth.

Liz Cheney is telling the truth and bringing receipts—truth matters.

She quotes her dad on the second CD, who admonished her to “save the republic, daughter,” missing the irony his “deficits don’t matter” rhetoric spawned what we’re all living through.

Take heart. Tell the truth. Truth matters in the face of lies. Grind it out next year and vote.

Chromatic imaging of white light with a single lens (left) and achromatic imaging of white light with a hybrid lens (right). Credit: The Grainger College of Engineering at the University of Illinois Urbana-Champaign

Topics: 3D Printing, Additive Manufacturing, Applied Physics, Materials Science, Optics

Using 3D printing and porous silicon, researchers at the University of Illinois Urbana-Champaign have developed compact, visible wavelength achromats that are essential for miniaturized and lightweight optics. These high-performance hybrid micro-optics achieve high focusing efficiencies while minimizing volume and thickness. Further, these microlenses can be constructed into arrays to form larger area images for achromatic light-field images and displays.

This study was led by materials science and engineering professors Paul Braun and David Cahill, electrical and computer engineering professor Lynford Goddard, and former graduate student Corey Richards. The results of this research were published in Nature Communications.

"We developed a way to create structures exhibiting the functionalities of classical compound optics but in highly miniaturized thin film via non-traditional fabrication approaches," says Braun.

In many imaging applications, multiple wavelengths of light are present, e.g., white light. If a single lens is used to focus this light, different wavelengths focus at different points, resulting in a color-blurred image. To solve this problem, multiple lenses are stacked together to form an achromatic lens. "In white light imaging, if you use a single lens, you have considerable dispersion, and so each constituent color is focused at a different position. With an achromatic lens, however, all the colors focus at the same point," says Braun.

The challenge, however, is that the required stack of lens elements required to make an achromatic lens is relatively thick, which can make a classical achromatic lens unsuitable for newer, scaled-down technological platforms, such as ultracompact visible wavelength cameras, portable microscopes, and even wearable devices.

A new (micro) lens on optics: Researchers develop hybrid achromats with high focusing efficiencies,  Amber Rose, University of Illinois Grainger College of Engineering

French economist Thomas Piketty compares the US economy to Europe in the Gilded Age. Oregon Live, 2014

Topics: Civics, Civil Rights, Civilization, Climate Change, Democracy, Existentialism, Fascism

Thomas Piketty wrote "Capital in the 21st Century" in 2013 centered on the wealth inequality we can see all around us. I can see more house-less citizens on the streets of North Carolina and Texas (on a recent visit) than I can remember from my youth because back then, we didn't have 8 billion inhabitants on the planet. There is a documentary of the same title on Amazon Prime video. The premise is ominous, and it bears witness to the stress that our world system is undergoing.

Dr. Piketty suggests that the rise of fascism around the world is because of income inequality. The climate crisis only exacerbates the supply chain, as thousand-year weather events are now more frequent than we would like.

Fascism is on the rise globally, but it is for lazy people. Propping up a so-called "strongman" gives a fall guy: if he (usually a "he") is right, he gets all the praise. If he's wrong, there can be one of two reactions: a coup (a coup, political, physical, or both is usually how they came to power in the first place), or a flaccid, impotent collective powerless shrug by the populace. So-called "strongmen" (an ever-oxymoron) are preferred when there is uncertainty, supplies are scarce, and people are fleeing wars, biblical tsunamis, and isolated by pandemics. When people are afraid, they are ripe for conmen and charlatans who will "fix" what is wrong and reflect back to halcyon days that never existed.

Democracy requires a shared reality, upon which sides debate and come to a consensus for the betterment of the electorate. Consensus means that you and your side won't get your "laundry list" after laying out your arguments, at least in that particular debate. It requires compromise and logic to be successful. It also helps that you are sane.

Whether you set your government framework on capitalism, communism, republicanism, or socialism, the divine right of kings, each has a hierarchy decided long ago of those who deserve the wealth and riches, and those pariahs at the base of the pyramid that do not.

Russian aggression in Ukraine, Hamas attacks in Israel; and Somali refugees in Europe are all because we are on the same volume of a planet that existed 43 years ago when we were only 4.4 billion people, and the American military after Vietnam was licking its wounds, reframing around an "all-volunteer force." The Soviet Union still existed as an existential boogie-man. Now, that remnant interferes in democratic elections worldwide, because the notion of participation in a stable world order is anathema to a kleptocracy.

Modern-day robber barons are no different than their ancestors, who met untimely ends in the French Revolution. Since we fought a Revolutionary War to depart the authoritarian crown of King George, the word sounds adventurous, avant-garde; "cool." Revolutions are bloody, and they aren't always for noble reasons.

"We tolerate no one in our ranks who attacks the ideas of Christianity. Our movement is Christian." Adolph Hitler, 1928, Snopes

The current status quo is unsustainable. We can't keep siphoning up ("trickledown" is gaslighting) tax breaks to American oligarchs and tax shelters in America and Europe for Russian oligarchs. It is thermodynamically impossible to "consume our way to utopia," and colonizing Mars is a pipedream by Elmo Musk, whose plan to terraform the Red Planet is impractical, impossible, unworkable, and dangerous. I'm not against space exploration. Far from it. Seeing the runaway Greenhouse Gas Emissions on Venus informed our models on Earth. Mars at one time probably had an atmosphere, water, and life about four billion years ago. The point is, the planet doesn't have either now, and the closest planet to terraform is right under our feet, without a requirement of VTOL (vertical takeoff and landing), rockets, or superluminal star drives. It merely requires something we should have learned to do in kindergarten: sharing resources with one another for the "common good" of continuance.

Cooperation is survival. Hoarding is death.

“Last year, I had a life-changing experience at 90 years old. I went to space, after decades of playing an iconic science-fiction character who was exploring the universe. I thought I would experience a deep connection with the immensity around us, a deep call for endless exploration.

"I was absolutely wrong. The strongest feeling, that dominated everything else by far, was the deepest grief that I had ever experienced.

"I understood, in the clearest possible way, that we were living on a tiny oasis of life, surrounded by an immensity of death. I didn’t see infinite possibilities of worlds to explore, adventures to have, or living creatures to connect with. I saw the deepest darkness I could have ever imagined, contrasting so starkly with the welcoming warmth of our nurturing home planet.

"This was an immensely powerful awakening for me. It filled me with sadness. I realized that we had spent decades, if not centuries, being obsessed with looking away, with looking outside. I did my share in popularizing the idea that space was the final frontier. But I had to get to space to understand that Earth is and will stay our only home. And that we have been ravaging it, relentlessly, making it uninhabitable."
-- William Shatner, actor

Credit goes to the respective owners.
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An Anthrobot is shown, depth colored, with a corona of cilia that provides locomotion for the bot. Credit: Gizem Gumuskaya, Tufts University

Topics: Applied Physics, Biology, Biomimetics, Biotechnology, Research, Robotics

Researchers at Tufts University and Harvard University's Wyss Institute have created tiny biological robots that they call Anthrobots from human tracheal cells that can move across a surface and have been found to encourage the growth of neurons across a region of damage in a lab dish.

The multicellular robots, ranging in size from the width of a human hair to the point of a sharpened pencil, were made to self-assemble and shown to have a remarkable healing effect on other cells. The discovery is a starting point for the researchers' vision to use patient-derived biobots as new therapeutic tools for regeneration, healing, and treatment of disease.

The work follows from earlier research in the laboratories of Michael Levin, Vannevar Bush, Professor of Biology at Tufts University School of Arts & Sciences, and Josh Bongard at the University of Vermont, in which they created multicellular biological robots from frog embryo cells called Xenobots, capable of navigating passageways, collecting material, recording information, healing themselves from injury, and even replicating for a few cycles on their own.

At the time, researchers did not know if these capabilities were dependent on their being derived from an amphibian embryo or if biobots could be constructed from cells of other species.

In the current study, published in Advanced Science, Levin, along with Ph.D. student Gizem Gumuskaya, discovered that bots can, in fact, be created from adult human cells without any genetic modification, and they are demonstrating some capabilities beyond what was observed with the Xenobots.

The discovery starts to answer a broader question that the lab has posed—what are the rules that govern how cells assemble and work together in the body, and can the cells be taken out of their natural context and recombined into different "body plans" to carry out other functions by design?

Anthrobots: Scientists build tiny biological robots from human tracheal cells, Tufts University

Credit: CC0 Public Domain

Topics: Condensed Matter Physics, Materials Science, Quantum Computer, Quantum Mechanics

Quantum scientists have discovered a rare phenomenon that could hold the key to creating a 'perfect switch' in quantum devices, which flips between being an insulator and a superconductor.

The research, led by the University of Bristol and published in Science, found these two opposing electronic states exist within purple bronze, a unique one-dimensional metal composed of individual conducting chains of atoms.

Tiny changes in the material, for instance, prompted by a small stimulus like heat or light, may trigger an instant transition from an insulating state with zero conductivity to a superconductor with unlimited conductivity and vice versa. This polarized versatility, known as "emergent symmetry," has the potential to offer an ideal On/Off switch in future quantum technology developments.

Lead author Nigel Hussey, Professor of Physics at the University of Bristol, said, "It's a really exciting discovery that could provide a perfect switch for quantum devices of tomorrow.

"The remarkable journey started 13 years ago in my lab when two Ph.D. students, Xiaofeng Xu, and Nick Wakeham, measured the magnetoresistance—the change in resistance caused by a magnetic field—of purple bronze."

In the absence of a magnetic field, the resistance of purple bronze was highly dependent on the direction in which the electrical current was introduced. Its temperature dependence was also rather complicated. Around room temperature, the resistance is metallic, but as the temperature is lowered, this reverses and the material appears to be turning into an insulator. Then, at the lowest temperatures, the resistance plummets again as it transitions into a superconductor.

Despite this complexity, surprisingly, the magnetoresistance was found to be extremely simple. It was essentially the same irrespective of the direction in which the current or field was aligned and followed a perfect linear temperature dependence all the way from room temperature down to the superconducting transition temperature.

Research reveals rare metal could offer revolutionary switch for future quantum devices, Queen's University Belfast, Phys.org.