All Posts (6342)

Sort by

PV Caveats...

12401778677?profile=RESIZE_710x

 Graphical abstract. Credit: Joule (2024). DOI: 10.1016/j.joule.2024.01.025

Topics: Applied Physics, Chemistry, Energy, Green Tech, Materials Science, Photovoltaics

 

The energy transition is progressing, and photovoltaics (PV) is playing a key role in this. Enormous capacities are to be added over the next few decades. Experts expect several tens of terawatts by the middle of the century. That's 10 to 25 solar modules for every person. The boom will provide clean, green energy. But this growth also has its downsides.

 

Several million tons of waste from old modules are expected by 2050—and that's just for the European market. Even if today's PV modules are designed to last as long as possible, they will end up in landfill at the end of their life, and with them some valuable materials.

 

"Circular economy recycling in photovoltaics will be crucial to avoiding waste streams on a scale roughly equivalent to today's global electronic waste," explains physicist Dr. Marius Peters from the Helmholtz Institute Erlangen-Nürnberg for Renewable Energies (HI ERN), a branch of Forschungszentrum Jülich.

 

Today's solar modules are only suitable for this to a limited extent. The reason for this is the integrated—i.e., hardly separable—structure of the modules, which is a prerequisite for their long service life. Even though recycling is mandatory in the European Union, PV modules are, therefore, difficult to reuse in a circular way.

 

The current study by Dr. Ian Marius Peters, Dr. Jens Hauch, and Prof Christoph Brabec from HI ERN shows how important it is for the rapid growth of the PV industry to recycle these materials. "Our vision is to move away from a design for eternity towards a design for the eternal cycle," says Peters "This will make renewable energy more sustainable than any energy technology before.

 

The consequences of the PV boom: Study analyzes recycling strategies for solar modules, Forschungszentrum Juelich

 

Read more…

Plastics and Infarctions...

12399328276?profile=RESIZE_710x

Plastic chokes a canal in Chennai, India. Credit: R. Satish Babu/AFP via Getty

Topics: Applied Physics, Biology, Chemistry, Environment, Medicine

People who had tiny plastic particles lodged in a key blood vessel were more likely to experience heart attack, stroke or death during a three-year study.

Plastics are just about everywhere — food packaging, tyres, clothes, water pipes. And they shed microscopic particles that end up in the environment and can be ingested or inhaled by people.

Now, the first data of their kind show a link between these microplastics and human health. A study of more than 200 people undergoing surgery found that nearly 60% had microplastics or even smaller nanoplastics in a main artery1. Those who did were 4.5 times more likely to experience a heart attack, a stroke, or death in the approximately 34 months after the surgery than were those whose arteries were plastic-free.

“This is a landmark trial,” says Robert Brook, a physician-scientist at Wayne State University in Detroit, Michigan, who studies the environmental effects on cardiovascular health and was not involved with the study. “This will be the launching pad for further studies across the world to corroborate, extend, and delve into the degree of the risk that micro- and nanoplastics pose.”

But Brook, other researchers and the authors themselves caution that this study, published in The New England Journal of Medicine on 6 March, does not show that the tiny pieces caused poor health. Other factors that the researchers did not study, such as socio-economic status, could be driving ill health rather than the plastics themselves, they say.

Landmark study links microplastics to serious health problems, Max Kozlov, Nature.

Read more…

It's On Us...

12398497500?profile=RESIZE_710x

 

― Gaylord Nelson, former Republican Governor and Senator of Wisconsin, Founder of Earth Day, April 20, 1970, which led to the formation of the U.S. EPA, December 2, 1970. Image: Nelson Institute of Environmental Science, University of Wisconsin-Madison

 

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

Robert Mueller was the subject of Internet memes as a 21st-century version of Joe Friday in "Dragnet." There was going to be an arrest. The 45th Oval Office occupant was going to be put in handcuffs and "perp-walked" in full view and total embarrassment of the Troll-in-Chief who tormented them with his itchy, psychotic Twitter fingers.

 

Robert Mueller did not save us.

 

Jack Smith was appointed late in the game of criminality. He joined Alvin Bragg, Fani Willis, Letitia James, Shawn Crawley, and Roberta Kaplan after two impeachments and 91 federal indictments, trying to do justice, stymied by wealth and privilege that most of us will never have. He has been convicted twice in the E. Jean Carroll: the second time because he couldn't keep his mouth shut. He owes over half a billion dollars between the two. But these are civil lawsuits. He owes money that he actually doesn't have, so he has to go hat in hand to the faux Tony Stark to get a bailout, I guess because a check in Rubles would be to hard to gaslight, even for him.

 

Jack Smith will not save us.

 

Meme posting on Facebook, tweeting (or "X"), Threading, Snapchatting, Reddit posts with pithy commentary, and real clever zingers will not change anything. Hiding behind your laptop as a "keyboard warrior" is no different and no less cowardly than the trolls you get your blood pressure up over in their mom's basements. Our democratic republic is "hanging by a thread." We need your bodies; we need your commitment.

 

Focus your anger into action.

 

Due to a lot going on at work, I ended up voting on Super Tuesday. I did not encounter any resistance. The tape in the machine had to be replaced, so my ballot was counted sometime later. I came back when my wife voted to get my sticker.

 

The candidates I voted for won in the primaries. I plan to volunteer for the campaigns that I want to be successful.

 

If you're angry about the state of the world and your country, I quote the Honorable John Lewis, who joined the ancestors: "Get in good trouble, necessary trouble."

 

It's not just civil rights anymore. It's Women's Rights, LGBTQ Rights, Immigrant Rights, and the rights to just BE yourselves.

 

The Danger of Echo Chambers

 

The State of the Union started with the pomp and circumstance of the Joint Chambers of Congress, which is still a crime scene. The current Speaker filed the Amicus Brief to overturn the results of the 2020 election. However, I am reminded of the 2012 election.

 

I see Senator Romney glad-handing everyone on the floor. I recall him so confident that he had won the 2012 election, he launched his transition website. It was because he consumed a lot of Fox (not) News, and they projected he would win, until he didn't.

 

I recall Karl Rove making Meghan Kelly walk to the statisticians' office at Fox (not) News, totally apoplectic that Obama/Biden had won re-election. The other persons utterly stunned were Mitt and Ann Romney. As Karl and Fox (not) News viewers, they absorbed a medium that made them feel better, but it did not, in fact, inform them, and still doesn't.

 

The danger of echo chambers is like Narcissus; it only gives you the last thing that you might hear:

 

One day, while hunting, Narcissus comes across an untouched, glassy spring. He is drawn to its beauty and lies down to take a drink, but what he sees in the still water enchants him. He is in love with what he sees and is inflamed by the features of the vision: the hair, his eyes, porcelain skin, and rosy cheeks. Attempts to kiss and hold the reflection are in vain, and Narcissus is only frustrated by the teasing reactions of the image. When Narcissus winks, the image winks back; when Narcissus waves, the image waves; and when he cries tears, he sees that the image also cries. Narcissus cannot understand why he cannot reach what he so desperately desires.

 

The tormented boy agonizes over his unrequited love. He cannot leave the spring and is trapped in his frozen gaze at his reflection, pining away for the boy in the water who rejects all advances. Then Narcissus realizes that the image is his, but it’s too late, as he has already fallen tragically in love with himself. Knowing that he can never have what he desires, his body withers away in despair. When Narcissus says “Goodbye” to the reflection, Echo’s voice says “Goodbye.” At that moment, Narcissus dies while peering into the spring. Historic Mysteries

 

The danger of echo chambers is adherence to narratives that do not exist in the real world. It is allegiance to "alternative facts," crackpot conspiracy theories, Big Lies, horse manure, hoopla, and hogwash. It says climate change doesn't exist in a deluge of evidence on a warming globe annually breaking its previous records. It is saying the Affordable Care Act was destined to "kill grandma," when four years ago, we had refrigerator trucks as mobile morgues by ignoring a pandemic and promoting quackery like drinking bleach, shining lights up our rectums, ivermectin, and hydroxychloroquine. It is putting on a Batman suit and thinking yourself an undefeatable martial artist, or a Superman suit and thinking you can fly. "Try that in Gotham," or leap from the roof of a short house: the acceleration due to gravity is still 9.81 m/s2. Physics is reality, and it cannot be gaslighted.

 

Things like the Orwellian Citizen's United have guaranteed that every election until capitalism is reformed is the "election of our lifetimes." The American oligarchs today are the spiritual descendants of the fascists who tried to prop up Smedley Butler as their dictator. He balked, realizing that he was a "gangster for capitalism" and that "war is a racket."

 

Time travel is a popular sci-fi trope, but backward travel is impossible due to the Second Law of Thermodynamics. But it is possible to shape the future we want to see for our children. To do that, we can't listen to nymphs reflecting echoes.

 

“Our goal is not just an environment of clean air, water, and scenic beauty. The objective is an environment of decency, quality, and mutual respect for all other human beings and living creatures.”

 

“The ultimate test of man's conscience may be his willingness to sacrifice something today for future generations whose words of thanks will not be heard.”
― Gaylord Nelson, former Republican Governor and Senator of Wisconsin, Founder of Earth Day, April 20, 1970, which led to the formation of the U.S. EPA, December 2, 1970.

 

 

Read more…

NIJI 6 CONTEST.03 - MARCH 07-09, 2024

NIJI 6 CONTEST.03 - MARCH 07-09, 2024

12398486299?profile=RESIZE_710x

The Second NIJI 6 CONTEST is about to get underway and the

THEME and RULES for posting.

Hope this helps if you are participating.

link to Black AI ARTS on DISORD:
https://discord.gg/xw7KR6MSvj

and This link for MIDJOURNEY:
https://www.midjourney.com/

and while on DISCORD don't forget to join the

Abyssinia Media Group® Channel - AbyssiniaMG:
https://discord.gg/feYFnuP8

Read more…

Super Strength...

12395799283?profile=RESIZE_710x

A sample of the new titanium lattice structure 3D printed in cube form. Credit: RMIT. New titanium lattice structure 3D printed in cube form. Credit: RMIT

Topics: 3D Printing, Additive Manufacturing, Materials Science, Metamaterials

A 3D printed ‘metamaterial’ boasting levels of strength for weight not normally seen in nature or manufacturing could change how we make everything from medical implants to aircraft or rocket parts.

RMIT University researchers created the new metamaterial – a term used to describe an artificial material with unique properties not observed in nature – from common titanium alloy.

But it’s the material’s unique lattice structure design, recently revealed in the journal Advanced Materials, that makes it anything but common: tests show it’s 50% stronger than the next strongest alloy of similar density used in aerospace applications.

Nature-Inspired Designs and Innovations

Lattice structures made of hollow struts were originally inspired by nature: strong hollow-stemmed plants like the Victoria water lily or the hardy organ pipe coral (Tubipora musica) showed us the way to combine lightness and strength.

Supernatural Strength: 3D Printed Titanium Structure Is 50% Stronger Than Aerospace Alloy, SciTech Daily, RMIT University

Read more…

12395770288?profile=RESIZE_710x

NIJI 6 CONTEST.02 - MARCH 04-06, 2024

The Second NIJI 6 CONTEST is about to get underway and the

THEME and RULES for posting.

Hope this helps if you are participating.

link to Black AI ARTS on DISORD:
https://discord.gg/xw7KR6MSvj

and This link for MIDJOURNEY:
https://www.midjourney.com/

and while on DISCORD don't forget to join the

Abyssinia Media Group® Channel - AbyssiniaMG:
https://discord.gg/feYFnuP8

 

12395770895?profile=RESIZE_710x

12395770697?profile=RESIZE_710x

Read more…

12390379079?profile=RESIZE_710x

The DISCORD group I participate in has me moderating their NIJI 6 CONTEST
starting FRIDAY, MARCH 1, 2024.

If you are down with the DISCORD and MIDJOURNEY.AI platforms,
you are welcome to join our group on DISCORD and
participate in the 3-day fun. Those interested but not a part of the DISCORD or
MIDJOURNEY party, but open to a "different social media experience," click this link for DISCORD:https://discord.com/

and This link for MIDJOURNEY:
https://www.midjourney.com/

and while on DISCORD don't forget to join the Abyssinia Media Group® Channel - AbyssiniaMG:
https://discord.gg/feYFnuP8
12390373875?profile=RESIZE_710x

 

Read more…

Spongy Narks...

12389875456?profile=RESIZE_710x

Scientists used samples from sclerosponges off the coast of Puerto Rico to calculate ocean surface temperatures going back 300 years. Douglas Rissing/iStockphoto/Getty Images

Topics: Climate Change, Existentialism, Global Warming, Research, Thermodynamics

CNN — Using sponges collected off the coast of Puerto Rico in the eastern Caribbean, scientists have calculated 300 years of ocean temperatures and concluded the world has already overshot one crucial global warming limit and is speeding toward another.

These findings, published Monday in the journal Nature Climate Change, are alarming but also controversial. Other scientists say the study contains too many uncertainties and limitations to draw such firm conclusions and could end up confusing public understanding of climate change.

Sponges — which grow slowly, layer by layer — can act like data time capsules, allowing a glimpse into what the ocean was like hundreds of years ago, long before the existence of modern data.

Using samples from sclerosponges, which live for centuries, the team of international scientists was able to calculate ocean surface temperatures going back 300 years.

They found human-caused warming may have started earlier than currently assumed and, as a result, global average temperature may have already warmed more than 1.5 degrees Celsius above pre-industrial levels. Researchers say the results also suggest global temperature could overshoot 2 degrees of warming by the end of the decade.

Under the 2015 Paris Agreement, countries pledged to restrict global warming to less than 2 degrees above pre-industrial levels, with an ambition to limit it to 1.5 degrees. The pre-industrial era — or the state of the climate before humans started burning large amounts of fossil fuels and warming the planet — is commonly defined as 1850-1900.

Data from centuries-old sea creatures suggest the world is warming faster than scientists thought, Rachel Ramirez, CNN

Read more…

Origin...

12376113060?profile=RESIZE_584x

Image source: Pittsburgh Arts and Lectures - Isabel Wilkerson, Livestream (2022)

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

"While I was at the hotel today, an elderly gentleman called upon me to know whether I was really in favor of producing a perfect equality between the negroes and white people. [Great Laughter.] While I had not proposed to myself on this occasion to say much on that subject, yet as the question was asked me, I thought I would occupy perhaps five minutes in saying something in regard to it. I will say then that I am not, nor ever have been, in favor of bringing about in any way the social and political equality of the white and black races, [applause]—that I am not nor ever have been in favor of making voters or jurors of negroes, nor of qualifying them to hold office, nor to intermarry with white people; and I will say in addition to this that there is a physical difference between the white and black races which I believe will forever forbid the two races living together on terms of social and political equality. And inasmuch as they cannot so live, while they do remain together, there must be the position of superior and inferior, and I, as much as any other man, am in favor of having the superior position assigned to the white race. I say upon this occasion, I do not perceive that because the white man is to have the superior position, the negro should be denied everything. I do not understand that because I do not want a negro woman for a slave, I must necessarily want her for a wife. [Cheers and laughter.] My understanding is that I can just let her alone. I am now in my fiftieth year, and I certainly never have had a black woman for either a slave or a wife. So it seems to me quite possible for us to get along without making either slaves or wives of negroes. I will add to this that I have never seen, to my knowledge, a man, woman, or child who was in favor of producing a perfect equality, social and political, between negroes and white men. I recollect of but one distinguished instance that I ever heard of so frequently as to be entirely satisfied with its correctness—and that is the case of Judge Douglas’s old friend, Col. Richard M. Johnson. [Laughter.] I will also add to the remarks I have made (for I am not going to enter at large upon this subject) that I have never had the least apprehension that my friends or I would marry negroes if there was no law to keep them from it, [laughter] but as Judge Douglas and his friends seem to be in great apprehension that they might if there were no law to keep them from it, [roars of laughter] I give him the most solemn pledge that I will to the very last stand by the law of this State, which forbids the marrying of white people with negroes. [Continued laughter and applause.] I will add one further word, which is this: [that] I do not understand that there is any place where an alteration of the social and political relations of the negro and the white man can be made except in the State Legislature—not in the Congress of the United States—and as I do not really apprehend the approach of any such thing myself, and as Judge Douglas seems to be in constant horror that some such danger is rapidly approaching, I propose as the best means to prevent it that the Judge be kept at home and placed in the State Legislature to fight the measure. [Uproarious laughter and applause.] I do not propose dwelling longer at this time on this subject."

Teaching History, the Lincoln-Douglas debates, 4th Debate, Part 1.

The man who would be known as "the great emancipator" could turn a phrase at an event at the time that would dwarf our current 1-1/2 hour modern performances: they were hours in duration. People brought lunches and took notes. Old Abe appeared to have been the "George Carlin" of his day. He was exploitative in his digs, not knowing at the time the same people he derided he would need fighting for him to win the war of secession.

Lincoln exploited racist tropes to make Judge Douglas - his Democratic (the conservative party then) opponent, look like a conspiratorial fool. As we look to history, we see the pedestals that our heroes occupy are made of cracked porcelain; their balance isn't steady because human bodies aren't perfectly proportioned, and they often fall from their lofty perches after scrutiny.

Despite this obvious bias Lincoln had towards "his tribe," another Douglass, Frederick Douglass, would petition him for the involvement of our ancestors on the side of the Union in the Civil War as well as make the case for the Emancipation Proclamation. Despite the many docuseries with them briefly onscreen together generally getting along, Frederick Douglass wasn't an initial fan of the 16th president:

Douglass was concerned about the unequal pay of Black soldiers, who received $3 dollars less per month than white privates. He was also incensed by the Union government’s response to the Confederate treatment of Black prisoners of war, who were being tortured, killed, and sometimes sold into slavery. He focused his anger on President Abraham Lincoln. “The slaughter of Blacks taken as captives,” wrote Douglass in his Douglass’ Monthly, “seems to affect him [Lincoln] as little as the slaughter of beeves [cows] for the use of his army.”

Abraham Lincoln and Frederick Douglass: Inside Their Complicated Relationship, History.com

So, when I hear people saying they're tired of voting for "the lesser of two evils," their naivete seems to reflect back to halcyon days that never existed, not realizing African Americans have voted that way since we were allowed to vote without interference (poll taxes, lynching, cross burnings, voter purges). As long as a caste system of complexion has existed on these shores, there has never been a conservative or liberal "great again."

The following (or a version of this) I posted on Rotten Tomatoes after seeing the movie:

"I read “Caste: The Source of Our Discontents” by Isabel Wilkerson before I saw “Origin,” directed by Ava DuVernay. I highly recommend reading the book, seeing the movie, and staying for the after-the-credits discussion by the director. It is POWERFUL and relevant to the times we all find ourselves in. Seeing the reenactment of Nazi book burning has a modern analogy in practice.

"The Caste System in America is based on skin color and the debasement of people who have no control over how they present themselves or how they are perceived. This extends easily to other groups under the boot of patriarchy.

"See it while it is available. It is a threat to patriarchal oligarchy and for the downcast, the Dalits, the under-the-boot marginalized: the relieving breath of being seen.

"I recommend this movie, seen with a group, and a discussion at a coffee shop or a restaurant afterward. You will need to decompress."

*****

A caste system, whether divinely inspired, fueled by American slave codes, black codes, Jim Crow, eugenics, or Europe, Italian and Nazi fascism, in India, Brahmins (priests and teachers), Kshatriyas (rulers, administrators, warriors), Vaishyas (artisans, merchants, tradesmen, farmers), Shudras (laborers) Dalits (Harijans or Untouchables), propped up by myth, superstition, and pseudoscience, is about resources and power, who "deserves" to have it, and who those deeming themselves deserving, deeming others as not deserving.

We can see the effects of the caste system in everything:

The global south suffered more from the pandemic than the global north.

The deleterious effects of climate change also affect the Global South more than it does the North. Our apathy for solving it lies in arrogance, caste, and xenophobia.

The Nazis plagiarized the South's black codes for the Nurenberg Laws to oppress the Jews.

It would take 500 years for African Americans to catch up to their (currently) majority neighbors. The March on Washington was on the eighth anniversary of the lynching of Emmett Till, but the essence of the assembly was a demand for reparations. We're still cashing a check returned, as Dr. King said, for "insufficient funds."

For Europeans, the outsiders are from the African continent (Akebulan), driven by conflicts supplied by European and American military-industrial complexes, STARTED by European and American business interests for one-sided extraction profits.

There's a scene in Sean Penn's "Superpower" documentary where Volodymyr Zelinzky and Vladimir Putin occupy the same stage. Putin glares at Zelinsky for contradicting him in a question-and-answer session with the press. In the obvious two-tier caste system, Russian pride cannot suffer his Ukrainian lesser upstaging him on camera. The motivation for the war, in a wounded strongman's twisted mind, might be as simple as that.

China is on Akebulan to extract the abundant resources from the continent to fuel what is arguably a communist-capitalist system. Their underdogs are Uygers, and they are treated like Dalits and Dr. Martin Luther King.

In fact, when King visited a local school for Dalit children in the southern Indian state of Kerala in 1959, the principal introduced him thus: "Young people, I would like to present to you a fellow untouchable from the United States of America." Although King was initially shocked by this introduction, he later understood the deeper connections of oppression, exclusion, and exile that African Americans in the US and Dalits in India shared. The broader Black freedom struggle has continued to inspire Dalit struggles in this region, from the formation of the Dalit Panthers in the 1970s to the recent emergence of Dalit Lives Matter groups in Nepal and India.

MLK and the Civil Rights Movement’s Global Perspective, University of Dayton blogs

In Israel-Palestine, the caste system also has only two tiers, as did its WWII analog. There will always be a "two-state solution" in Israel-Palestine because it is never meant as a problem to solve. The two-state solution is meant to sound reasonable because it IS reasonable, but part of a two-state solution would mean returning lands seized since 1948 (or at least 1967). That has another word in America: reparations. If you can do it in the Near East, the fear is the clamor to do it in the United States couldn't justifiably be resisted.

Power and resources, hoarded to the one percent of any nation's pyramid, are imbalanced, and it is a caste system that is unsustainable.

A caste system is a societal pathology, and I don't see such a society lasting long enough to build interplanetary or interstellar vessels. "Fermi's paradox" may have a grim answer.

Read more…

Recycling Green Plastics...

12374053268?profile=RESIZE_710x

Credit: Cell Reports Physical Science (2024). DOI: 10.1016/j.xcrp.2024.101783

Topics: Biochemistry, Chemistry, Polymer Science, Polymers

Scientists at King's College London have developed an innovative solution for recycling single-use bioplastics commonly used in disposable items such as coffee cups and food containers.

The novel method of chemical recycling, published in Cell Reports Physical Science, uses enzymes typically found in biological laundry detergents to "depolymerize"—or break down—landfill-bound bioplastics. Rapidly converting the items into soluble fragments within just 24 hours, the process achieves full degradation of the bioplastic polylactic acid (PLA). The approach is 84 times faster than the 12-week-long industrial composting process used for recycling bioplastic materials.

This discovery offers a widespread recycling solution for single-use PLA plastics, as the team of chemists at King's found that in a further 24 hours at a temperature of 90°C, the bioplastics break down into their chemical building blocks. Once converted into monomers—single molecules—the materials can be turned into equally high-quality plastic for multiple reuse.

The problem with 'green' plastics

Current rates of plastic production outstrip our ability to dispose of it sustainably. According to Environmental Action, it is estimated that in 2023 alone, more than 68 million tons of plastic globally ended up in natural environments due to the imbalance between the huge volumes of plastics produced and our current capacity to manage and recycle plastic at the end of its life. A recent OECD report predicted that the amount of plastic waste produced worldwide will almost triple by 2060, with around half ending up in landfills and less than a fifth recycled.

An enzyme used in laundry detergent can recycle single-use plastics within 24 hours, King's College London.

Read more…

Limit Shattered...

12368038269?profile=RESIZE_710x

TSMC is building Two New Facilities to Accommodate 2nm Chip Production

Topics: Applied Physics, Chemistry, Electrical Engineering, Materials Science, Nanoengineering, Semiconductor Technology

 

Realize that Moore’s “law” isn’t like Newton’s Laws of Gravity or the three laws of Thermodynamics. It’s simply an observation based on experience with manufacturing silicon processors and the desire to make money from the endeavor continually.

 

As a device engineer, I had heard “7 nm, and that’s it” so often that it became colloquial folklore. TSMC has proven itself a powerhouse once again and, in our faltering geopolitical climate, made itself even more desirable to mainland China in its quest to annex the island, sadly by force if necessary.

 

Apple will be the first electronic manufacturer to receive chips built by Taiwan Semiconductor Manufacturing Company (TSMC) using a two-nanometer process. According to Korea’s DigiTimes Asia, inside sources said that Apple is "widely believed to be the initial client to utilize the process." The report noted that TSMC has been increasing its production capacity in response to “significant customer orders.” Moreover, the report added that the company has recently established a production expansion strategy aimed at producing 2nm chipsets based on the Gate-all-around (GAA) manufacturing process.

 

The GAA process, also known as gate-all-around field-effect transistor (GAA-FET) technology, defies the performance limitations of other chip manufacturing processes by allowing the transistors to carry more current while staying relatively small in size.

 

Apple to jump queue for TSMC's industry-first 2-nanometer chips: Report, Harsh Shivam, New Delhi, Business Standard.

 

Read more…

Boltwood Estimate...

12365551887?profile=RESIZE_710x

Credit: Public Domain

Topics: Applied Physics, Education, History, Materials Science, Philosophy, Radiation, Research

We take for granted that Earth is very old, almost incomprehensibly so. But for much of human history, estimates of Earth’s age were scattershot at best. In February 1907, a chemist named Bertram Boltwood published a paper in the American Journal of Science detailing a novel method of dating rocks that would radically change these estimates. In mineral samples gathered from around the globe, he compared lead and uranium levels to determine the minerals’ ages. One was a bombshell: A sample of the mineral thorianite from Sri Lanka (known in Boltwood’s day as Ceylon) yielded an age of 2.2 billion years, suggesting that Earth must be at least that old as well. While Boltwood was off by more than 2 billion years (Earth is now estimated to be about 4.5 billion years old), his method undergirds one of today’s best-known radiometric dating techniques.

In the Christian world, Biblical cosmology placed Earth’s age at around 6,000 years, but fossil and geology discoveries began to upend this idea in the 1700s. In 1862, physicist William Thomson, better known as Lord Kelvin, used Earth’s supposed rate of cooling and the assumption that it had started out hot and molten to estimate that it had formed between 20 and 400 million years ago. He later whittled that down to 20-40 million years, an estimate that rankled Charles Darwin and other “natural philosophers” who believed life’s evolutionary history must be much longer. “Many philosophers are not yet willing to admit that we know enough of the constitution of the universe and of the interior of our globe to speculate with safety on its past duration,” Darwin wrote. Geologists also saw this timeframe as much too short to have shaped Earth’s many layers.

Lord Kelvin and other physicists continued studies of Earth’s heat, but a new concept — radioactivity — was about to topple these pursuits. In the 1890s, Henri Becquerel discovered radioactivity, and the Curies discovered the radioactive elements radium and polonium. Still, wrote physicist Alois F. Kovarik in a 1929 biographical sketch of Boltwood, “Radioactivity at that time was not a science as yet, but merely represented a collection of new facts which showed only little connection with each other.”

February 1907: Bertram Boltwood Estimates Earth is at Least 2.2 Billion Years Old, Tess Joosse, American Physical Society

Read more…

Brookhaven and Fake News...

12364614287?profile=RESIZE_710x

Climate of fear Anti-science protestors led to the closure of the High Flux Beam Reactor at the Brookhaven National Laboratory in the US 25 years ago using tactics that are widespread today. (Courtesy: iStock/DanielVilleneuve)

Topics: Biology, Cancer, Carl Sagan, Civilization, Climate Change, Philosophy, Physics

I typically don't comment on articles, but this one resonated with my memories of Carl Sagan desperately trying to raise the critical thinking skills of an entire essential nation with "The Demon-Haunted World: Science as a Candle in the Dark." The host of Cosmos would succumb to pneumonia as a consequence of bone marrow disease. I will be the age Carl was when he passed away this year, 62, but not as accomplished as he did in the six decades we all had access to him.

The framework of our current duress was already here in the form of celebrity worship, gossip columns, and talk shows where sensationalism equaled eyeballs, just as the Internet rouses the primitive lizard portion of our brains to be afraid, get angry, and "buy-purchase-consume" products (a friend who's a sound engineer likes to say that a lot).

Underhand tactics by environmental activists led to the closure of a famous physics facility 25 years ago. We can still learn much from the incident, says Robert P Crease.

Fake facts, conspiracy theories, nuclear fear, science denial, baseless charges of corruption, and the shouting down of reputable health officials. All these things happened 25 years ago, long before the days of social media, in a bipartisan, celebrity-driven episode of science denial.  Yet the story offers valuable lessons for what works and what does not (mostly the latter) for anyone wanting to head off such incidents.

The episode in question concerned one of the more valuable scientific facilities in the US, the High Flux Beam Reactor (HFBR) at the Brookhaven National Laboratory. As I mentioned in a previous column and in my book The Leak, the HFBR was a successful research instrument that was used to make medical isotopes and study everything from superconductors to proteins and metals. “Experimentalists saw the reactor as the place to go,” recalls the physicist William Magwood IV, then at the US Department of Energy.

But in 1997, lab scientists discovered a leak of water from a pool located in the same building as the reactor, where its spent fuel was stored. The leak contained tritium, a radioactive isotope of hydrogen that decays with a half-life of about 12 years, releasing low-energy electrons that can be stopped by a few sheets of paper. The total amount of tritium in the leak was about that in typical self-illuminating “EXIT” signs.

The protestors’ tactics are a familiar part of today’s political environment: tell people they are in danger and insist that anyone who says otherwise is lying.

The article goes on to recount the actor Alec Baldwin using his celebrity to put a ten-year-old child on the Montell Williams Show to claim that the tritium and the research facility caused his cancer. It wasn't true, but it was LOUD, drowning out the experts who are used to spirited peer review and erudite discussions of research, not tears and gnashing of teeth.

Montell Williams ended his talk show after announcing that he had multiple sclerosis. Alec Baldwin, though I enjoyed his SNL skits, has other pressing issues.

I have a physicist friend who's using tritium in his research with optical tweezers, separating isotopes to detect and treat cancers, among other applications. I am opting not to give his website as those same elements described in the article about Brookhaven National Labs have metastasized into our current societal mass psychosis. If his research leads to your cancer cure, you can thank him later.

Twenty-five years ago, we weren't as far along in climate disruption as we are now. Twenty-five years ago, CNN was 19 years old, and its clones, Fox and MSNBC, were 3 years old. Five years after the Y2K scare (exquisitely setting us up for election 2000 and 9/11), humanity further siloed itself into warring tribes, first posting on Internet bulletin boards, MySpace. Then, the logical progression was to Facebook, Twitter (now X), and its myriad progeny.

A side note: CERN would go on to discover the Higgs Boson because we, in the spirit of fiscal stewardship, closed the superconducting collider in Waxahachie, Texas, 48 kilometers south of Dallas. Peter Higgs and François Englert owe their 2013 Physics Nobel Prize to Switzerland. U-S-A. U-S-A.

How much further along in cancer research and nuclear energy as an alternative to fossil fuels would we be if, prior to Facebook and the former Twitter, we exercised a little critical thinking and common sense? I'm not talking about tritium, but fission reactors, which we know how to build (fusion, though cleaner and less radioactive, is still far off), but the environmental activists have terrorized anyone from building newer and safer facilities that might have had some positive impact on our warming climate. To paraphrase a famous saying, "Don't let the perfect be the enemy of the good." Our air quality improved during the pandemic, so the logic leads to upgrading public transportation to something matching other countries that rely on it more than we do, or within our borders, the subway systems in New York, New Jersey, Philadelphia, or Washington, DC. You end up doing nothing of any importance. We could replace the fission reactors one by one as fusion comes online.

That is what enrages and disappoints me.

The American reactor that was closed by fake news, Robert P Crease, Physics World

Read more…

On-Off Superconductor...

12364246686?profile=RESIZE_710x

A team of physicists has discovered a new superconducting material with unique tunability for external stimuli, promising advancements in energy-efficient computing and quantum technology. This breakthrough, achieved through advanced research techniques, enables unprecedented control over superconducting properties, potentially revolutionizing large-scale industrial applications.

Topics: Applied Physics, Materials Science, Solid-State Physics, Superconductors

Researchers used the Advanced Photon Source to verify the rare characteristics of this material, potentially paving the way for more efficient large-scale computing.

As industrial computing needs grow, the size and energy consumption of the hardware needed to keep up with those needs grows as well. A possible solution to this dilemma could be found in superconducting materials, which can reduce energy consumption exponentially. Imagine cooling a giant data center full of constantly running servers down to nearly absolute zero, enabling large-scale computation with incredible energy efficiency.

Breakthrough in Superconductivity Research

Physicists at the University of Washington and the U.S. Department of Energy’s (DOE) Argonne National Laboratory have made a discovery that could help enable this more efficient future. Researchers have found a superconducting material that is uniquely sensitive to outside stimuli, enabling the superconducting properties to be enhanced or suppressed at will. This enables new opportunities for energy-efficient switchable superconducting circuits. The paper was published in Science Advances.

Superconductivity is a quantum mechanical phase of matter in which an electrical current can flow through a material with zero resistance. This leads to perfect electronic transport efficiency. Superconductors are used in the most powerful electromagnets for advanced technologies such as magnetic resonance imaging, particle accelerators, fusion reactors, and even levitating trains. Superconductors have also found uses in quantum computing.

Scientists Discover Groundbreaking Superconductor With On-Off Switches, Argonne National Laboratory

Read more…

Black Silicon...

12360303470?profile=RESIZE_710x

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

Read more…

Fast Charger...

12359976866?profile=RESIZE_710x

Significant Li plating capacity from Si anode. a, Li discharge profile in a battery of Li/graphite–Li5.5PS4.5Cl1.5 (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

Read more…

Bedlam, Swatting, Terrorism...

12357085067?profile=RESIZE_710x

 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

 

Read more…

A Path From Panic...

12356767098?profile=RESIZE_710x

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.

Read more…