Reginald L. Goodwin's Posts (3030)

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Nerds...

Source: Pinterest.com


Stereotype: "people who think about science and technology are not human." (from the video)



Sorry if I sound sensitive, but I've lived this with bullying in my own life as I assume others have as well. We've made the "dumb down" a national mantra; we've elevated athletes and reality stars to godlike status for "much ado about...nothing." (Shakespeare) Our success as a nation is apparently supposed to just "happen," our technological advances are supposed to just drop out of the sky. Harold O. Levy's grim synopsis in Scientific American is stated quite well in this excerpt:

The full depth of America's educational failure is actually masked by the diversity of nationalities among grad students in those fields: Of the 1,777 physics doctorates awarded in 2011, for example, 743 went to temporary visa holders from many lands—and that figure excludes foreign nationals who had won permanent resident status. Only 15 of those 1,777 doctorates were earned by African-Americans. The totality is less and less American students PERIOD are going into science...why? May I posit few observations:



Source: Voctactic.com

We disdain kids for wanting to learn; express curiosity and excel academically: they are the "outcasts." We applaud kids for spending hours in the gym or on courts to fit through a narrow probability = raw talent + LUCK with a limited shelf life: for every ~30 draft picks, the same number are going to D-Leagues or out of the game; the leagues if the 2nd part of the formula - LUCK prevails! For their time in the secondary sun: they are "the cool ones."

It appears it is literally *nothing* that we celebrate; nothing of worth, self-satisfaction, personal gratification, value or that makes a difference. With few exception, most of the sports have updated rules, equipment and training methods only, with little fundamental change of mechanics from each sport's inception. It would be like running the global economy on Newtonian physics. We've become a "Seinfeld nation."

This moribund myth is as false as eugenics theories, xenophobic racists prejudices, and the height of breathtaking hypocrisy for narcissistic techno-bullies to Blog, Facebook, Pinterest, Text or Tweet their threats and disdain of nerds...on platforms CREATED by them!


Smiley
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Quantum Internet...

From Technology Review's "Best of 2013":

Credit: footnote (1) link

One of the dreams for security experts is the creation of a quantum internet that allows perfectly secure communication based on the powerful laws of quantum mechanics.



The basic idea here is that the act of measuring a quantum object, such as a photon, always changes it. So any attempt to eavesdrop on a quantum message cannot fail to leave telltale signs of snooping that the receiver can detect. That allows anybody to send a “one-time pad” over a quantum network which can then be used for secure communication using conventional classical communication.



That sets things up nicely for perfectly secure messaging known as quantum cryptography and this is actually a fairly straightforward technique for any half decent quantum optics lab. Indeed, a company called ID Quantique sells an off-the-shelf system that has begun to attract banks and other organisations interested in perfect security.



These systems have an important limitation, however. The current generation of quantum cryptography systems are point-to-point connections over a single length of fibre, So they can send secure messages from A to B but cannot route this information onwards to C, D, E or F. That’s because the act of routing a message means reading the part of it that indicates where it has to be routed. And this inevitably changes it, at least with conventional routers. This makes a quantum internet impossible with today’s technology



Various teams are racing to develop quantum routers that will fix this problem by steering quantum messages without destroying them. We looked at one of the first last year. But the truth is that these devices are still some way from commercial reality.



Today, Richard Hughes and pals at Los Alamos National Labs in New Mexico reveal an alternative quantum internet, which they say they’ve been running for two and half years. Their approach is to create a quantum network based around a hub and spoke-type network. All messages get routed from any point in the network to another via this central hub. (1)



Abstract



Network-centric quantum communications (NQC) - a new, scalable instantiation of quantum cryptography providing key management with forward security for lightweight encryption, authentication and digital signatures in optical networks - is briefly described. Results from a multi-node experimental test-bed utilizing integrated photonics quantum communications components, known as QKarDs, include: quantum identification; verifiable quantum secret sharing; multi-party authenticated key establishment, including group keying; and single-fiber quantum-secured communications that can be applied as a security retrofit/upgrade to existing optical fiber installations. A demonstration that NQC meets the challenging simultaneous latency and security requirements of electric grid control communications, which cannot be met without compromises using conventional cryptography, is described. (2)



1. Technology Review: Government Lab Reveals It Has Operated Quantum Internet for Over Two Years
2. Physics arXiv: Network-Centric Quantum Communications with Application to Critical Infrastructure Protection,
Richard J. Hughes, Jane E. Nordholt, Kevin P. McCabe, Raymond T. Newell, Charles G. Peterson, Rolando D. Somma

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2013 Physics Highlights...

They were:




  • Four-Quark Matter
  • Strangers from Beyond our Solar System (Neutrinos)
  • Dark Matter is Still Obscure
  • Light Stopped for One Minute
  • Telescope Detects Twist in Ancient Cosmic Light
  • Lasers of Sound
  • Microscope Spies on Hydrogen
  • Facilities in a Box
  • Majorana Fermions Annihilate in Nanowires
  • A Year of Quantum Victories—But No Quantum Computer Yet
  • What’s Inside a Black hole?


Compiled by Matteo Rini and Jessica Thomas

APS: Highlights of the Year

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The Day I Wept...



I wept because Carl had been such an inspiration to me, to astronomers, children, physicists, scientists, engineers, technologists, writers, television, movies and film: singularly as much popular impact as Star Trek on a vision of the future and our participation in it.



Three years later, the destiny of entropy came for my father.



Like the death of Charles M. Schultz in 2000 and my mother in 2009, I wept. I felt the passage of time as my childhood heroes were rapidly exiting the scene, seeing but not quite making it into the 21st century (except mom), where entropy will ultimately claim me.



I'm encouraged COSMOS is getting a "reboot" of sorts, but the media is so vastly different than then; so purposely distracting. Whatever the provider or package: can anyone watch all the channels you currently have access to? It's a quaint madness of sorts.



It's hard for kids these days to imagine television going OFF except for some interruption by storms or power outages; prior to 1980 of there being three main channels that broadcast locally, a UHF (ultra-high frequency station, with snowy reception) and PBS. In the advent of COSMOS in 1980, the only cable network news channel was CNN (1 June 1980); MTV would launch 1 August 1981. That was it, so Carl had for the most part, everyone's undivided attention by default, and captured the national imagination.

My concern is shared by David Morrison, a doctoral student of Carl's: your chances of seeing his professor were very high then, whereas Dr. Tyson, Hayden Planetarium Director and well-known for his Star Talk Internet Radio broadcasts, has a vastly more challenging landscape (see "I plan," next paragraph). The unfortunate consequence of popular shows like "The X-Files" and "Millennium" is that each in its own way reinforced the post-Fairness Doctrine demise narrative that "government can't be trusted," and by extension anything its researchers say about science and nature beyond another consumer product. Note the chart from the same article (link at "your chances of seeing" above, same paragraph):







I plan* to rebroadcast, post, Facebook, Tweet and embed; do as much as I can to help push the ratings up. This is important, now more than ever! Hard science is under assault in America, and the joke's going to be on us soon as the saner parts of the planet refuse to follow us down our yellow brick road primrose path of inanity. If we could stop fighting the Civil War for a nanosecond, I'm confident we'd increase our science sagacity as a nation.

I hope you join me, I could use the help. One could become dozens; hundreds; thousands to 500 million; on a planet of 7 billion, a small fraction. Science not in the public sphere - resisted with open hostility - in an ever technological new century is the formula for national bankruptcy and moribundity.

We've become trivial beings, self-centered and more interested in the latest faux adventure on (non) "reality TV," fashion, gadgets and politicized news than things that really matter.



The Carl Sagan Memorial Station above is a fiction of "Enterprise." The Martian "monument" computer-generated, and featured in a scene on one of the last shows before its cancellation. If you can't read the quote above from Carl, it says:




"Whatever the reason you're on Mars, I'm glad you're there, and I wish I was with you."



If we ever get our acts together, it could one day be more science than fiction.


It would honor Carl, and ultimately ourselves.

Site: Carl Sagan


Please consider taking up my "COSMOS Reboot*" support challenge.  Look for the show site when it's launched, and spread the word on social media. You're a hero in a few clicks.
Taking a blogging break. Please enjoy all the current posts.
See you with new posts in 2014.

Enjoy Christmas, Feliz Navidad, Hanukkah, Kwanzaa, Noel, Saturnalia, Solstice, Yuletide.
Yep, that didn't cover it all, but I think it covered enough. Smiley
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Trojan Asteroids...

Image and excerpt source: COSMOS: The SAO Encyclopedia of Astronomy

Asteroids sharing an orbit with a planet, but which are located at the leading (L4) and trailing (L5) Lagrangian points, are known as Trojan asteroids. Although Trojan asteroids have been discovered for Mars (4 to date, 1 at L4 and 3 at L5) and Neptune (8 Trojans, 6 at L4 and 2 at L5) and even Earth (1 Trojan at L4), the term ‘Trojan asteroid’ generally refers to the asteroids accompanying Jupiter.



SETI Institute: Scientific Premises and Technological Challenges of Deep Space Round Trip Exploration to Jupiter Trojans and Even Further
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DNA Codex...

Scientists have discovered a code within a code (Source: cosmin4000/iStockphoto)

While we all know DNA instructs our cells how to make proteins, scientists have now discovered a second DNA code that suggests the body uses the same alphabet to speak two different languages.



The findings in the journal Science may have big implications for how medical experts use the genomes of patients to interpret and diagnose diseases, say researchers.



The newfound genetic code within deoxyribonucleic acid, the hereditary material that exists in nearly every cell of the body, was written right on top of the DNA code scientists had already cracked.



Rather than concerning itself with proteins, this one instructs the cells on how genes are controlled.



Its discovery means DNA changes, or mutations that come with age or in response to viruses, may be doing more than what scientists previously thought, say the researchers.



"Now we know that this basic assumption about reading the human genome missed half of the picture."



"Many DNA changes that appear to alter protein sequences may actually cause disease by disrupting gene control programs or even both mechanisms simultaneously."



ABC Science: Scientists discover second, secret DNA code
IEEE Explore: DNA and Quantum Theory

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Ubiquitous Antiquity...

Life on other planets could have been warmed by the afterglow of the Big Bang.
L. CALÇADA/ESO

Aliens might have existed during the Universe’s infancy. A set of calculations suggests that liquid water — a pre­requisite for life — could have formed on rocky planets just 15 million years after the Big Bang.

Abraham Loeb, an astrophysicist at Harvard University in Cambridge, Massachusetts, has realized that in the early Universe, the energy required to keep water liquid could have come from the cosmic microwave background, the afterglow of the Big Bang, rather than from host stars. Today, the temperature of this relic radiation is just 2.7 kelvin, but at an age of around 15 million years it would have kept the entire Universe at a balmy 300 kelvin, says Loeb, who posted his calculations to the arXiv preprint server this month.

Loeb says that rocky planets could have existed at that time, in pockets of the Universe where matter was exceptionally dense, leading to the formation of massive, short-lived stars that would have enriched these pockets in the heavier elements needed to make planets. He suggests that there would have been a habitable epoch of 2 million or 3 million years during which all rocky planets would have been able to maintain liquid water, regardless of their distance from a star. “The whole Universe was once an incubator for life,” he says.

Nature: Life possible in the early Universe
Physics arXiv: The Habitable Epoch of the Early Universe, Abraham Loeb

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Towards Room Temp Superconductors...

Could metamaterial superconductors operate at liquid nitrogen temperatures? (Courtesy: Charles D Winters/Science Photo Library)

A new way of making high-temperature superconductors that is based on metamaterials has been proposed by physicists in the US. Their plan involves combining a low-temperature superconductor with a dielectric material to create a metamaterial that is a superconductor at much higher temperatures than its constituent materials. The team is now looking at testing its proposal in the lab and is hopeful that its work could offer a route to creating a superconductor that operates at room temperature.

Ever since the first high-temperature superconductor was discovered nearly 30 years ago, physicists have searched in vain for a material that remains a superconductor at room temperature. But despite a massive effort, physicists have not been able to create a superconductor that endures at temperatures higher than about 140 K, which is still 150 degrees below room temperature.

Now Vera Smolyaninova of Towson University and Igor Smolyaninov of the University of Maryland have proposed a new approach to creating a superconductor with a high critical temperature (Tc) – the temperature above which the material ceases to be superconducting. Their proposal involves creating man-made structures called metamaterials, which can be engineered to have electromagnetic properties that are not normally found in nature. This includes negative indices of refraction, which have been used to create devices such as invisibility cloaks and super lenses.

Physics World:
Metamaterials offer route to room-temperature superconductivity

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Life on Earth...

Source: PHUTURELABS

The American Association for the Advancement of Science had an insightful title: "Global Challenges: Sustaining Life on Earth." Some excerpts from each sub link:

Will The World Have Enough Energy in 2040?

By 2040, planet Earth will be home to nearly 9 billion people — up roughly 2 billion from today — all requiring access to energy supplies in order to participate in modern life. We have the natural resources to meet global projected energy demands in 2040, but how to do so equitably and without exacerbating global warming are more difficult questions, experts said at a AAAS event.

The challenges will be less acute in the developed world, where energy use is projected to stay mostly steady in the next three decades. But the next 30 years should see energy demand surge in other countries whose economies are growing rapidly, especially those in Asia, according to representatives from Exxon-Mobil and the Energy Information Administration (EIA), which is part of the U.S. Department of Energy.



Though they differ in their finer points, projections by both organizations show global energy use growing from roughly 400 quadrillion BTU's in 2000 to over 700 quadrillion BTU's by 2040 with virtually all of the increase coming from outside today's high-income countries. At that point, less than half of the world's oil resources will be consumed, according to Rob Gardner, manager of the Economics and Energy Division of Exxon-Mobil's Corporate Strategic Planning Department. The company also estimates that the remaining recoverable global resources of natural gas are enough to meet current demand for about 200 years

Societies' Nearsightedness Poses Main Obstacle to Extreme Weather Preparation

Extreme weather: Everybody talks about it, but human nature often gets in the way of our doing something about it. This was the consensus among scientists who participated in a discussion about "Building Resilience to Extreme Weather," at the AAAS headquarters auditorium in downtown Washington, DC.

Scientists, engineers and others who study extreme weather have proposed numerous ways to reduce the suffering and damage inflicted by hurricanes, floods, tornadoes, deluges, droughts and such. Obstacles to implementing these measures often arise because peoples' perspectives are short-term and localized, while nature's patterns are vastly longer-term and global, the speakers said.



Society could benefit greatly by taking the same approach to natural hazards as that taken by the aviation industry toward air disasters, which means "learning from experience," he said. For instance, if a wing falls off a plane, the official reaction is that "this must never happen again.'"

Promising Advances in Conservation Science May Test Existing Policies



Already, scientists have cloned an extinct goat-specifically, a Portuguese subspecies of the Iberian ibex (Capra pyrenaica pyrenaica), said Haig, one of three speakers who joined moderator Richard Harris of National Public Radio to discuss the frontiers of conservation science and policy. The ibex clone, produced after Spanish and French scientists inserted preserved DNA into a modern goat egg and made 57 implantation attempts, died shortly after birth. In Australia, researchers also have so far cloned early embryos of a mouth-brooding frog (Rheobatrachus) that used its stomach as a womb before habitat loss prompted it to go extinct some 30 years ago. Other research teams have announced plans to try and resurrect the carrier pigeon, the woolly mammoth, an extinct type of cattle known as the auroch, and other animals, using a combination of cloning and selective breeding methods.



Energy, climate, biodiversity: three tall-orders that science is up to the task with the noted exception (lack) of political will and obfuscation from our leaders. At issue is the engineered public distrust of prepared experts on science, and their misplaced trust in "thought leaders" that parrot talking points for respective myopic energy industries. Change at this point could affect their business model, and it might. I'm betting with the right incentives, that change could be mutually beneficial: the climate on earth somewhat stabilized, meaning the economies of nations stable as well, thus more with the means to consume responsibly, and would so gladly. Making money on war, misery and social stratification can only go so far (after all, the Earth is only an estimated 1,097,509,500,000,000,000,000 cubic meters), rather large, but not infinite. Especially for 9 billion souls that will require food, housing and employment. Our species will have to become space faring to survive.



It would be a shame our venture into the stars via Mars is an evacuation versus a colonization. The Red Planet's atmosphere is currently too thin for human life. It would take several centuries of Terra-forming to get it habitable. It would take starting that process.



Our planet is our star ship, and our only practice field. It will stand testament as evidence of our stewardship...or lack thereof.



American Association for the Advancement of Science:
Global Challenges: Sustaining Life on Earth, 11 December 2013, Kathy Wren
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Trying Not To Be Him...



The pointy-haired boss (often abbreviated to just PHB[1] or "The Boss") is Dilbert's boss in the Dilbert comic strip. He is notable for his micromanagement, gross incompetence and unawareness of his surroundings, yet somehow retains power in the workplace.

The Pointy-Haired Boss is mostly bald, except for a fringe of hair across the back of the head, and two tufts that rise to points above his ears (hence the name). Scott Adams has admitted that the Boss's odd hair was inspired by devil horns. He used to have jowls at first because Adams wanted the character to look gruff, but the boss ended up looking dumb instead.[2]

The Boss is frequently childish, immature, ignorant, and rude, yet also annoyingly cheerful and oblivious to his own actions. He frequently uses bizarre metaphors and analogies to "motivate" employees (Adams admits this to be a pet peeve), and on the TV series engages in rambling non sequiturs in conversation. In some strips, when he displays an above-average intelligence, or at least exhibits surprisingly original and cunning (albeit unethical or unscrupulous) thinking, Dilbert calls him a resourceful idiot. (Wikipedia)

Hence, my interest at this phrasing for the article I excerpt and give link to below. The second paragraph in the industry I work explains my management style precisely. I've often, in conversations with subordinates used the phrase: "I'm trying not to be the pointy-haired boss," and among techno-nerds/knowledge workers, my metaphor is generally understood.

How I do that is a balance between a level of direct engagement and an amount of trust in the engineer (that they must earn). Direct engagement is due the emphasis of our customer and their priorities. I'm likely to ask more questions and drive personnel to solutions in that case. I have two questions I pose: (1) What do you need? (2) How can I help you?

I avoid the obvious temptation to micromanage by having my own educational/career goals and blogging about physics. It tends to keep me out of the streets at night...

There's an extensive body of knowledge devoted to the management of people who think for a living—so-called "knowledge workers"—and to the knowledge-based projects they engage in. While this body of knowledge arose mainly from the software industry, where complex projects can be tough to manage and the stakes high—case in point: Healthcare.gov—it is applicable to other domains, including science.

Any resemblance between such an arrangement and your postdoc appointment is regrettable, because the best motivations of knowledge workers—and scientists above all—are entirely different from those of factory workers. Knowledge workers are motivated by the work itself and the pleasure of doing it, by an internal drive to find answers or to make things. As most readers of this essay surely know from experience, anything that undermines that motivation—pressure to produce, meddling by management, fear of sanctions, anxiety, resentment, even gratuitous performance bonuses—worsens work performance. The best approach to managing knowledge workers, then, is to clarify the objectives, provide the tools and support they need, facilitate collaboration, and get out of the way.

Science: Give Science Some Slack, Jim Austin
Business Insider: 10 Best Pointy-Haired Boss Moments from 'Dilbert', Jenna Goudreau

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On The Cusp of 5G...

See Technology Review link below.

TECHNOLOGY REVIEW:
The fifth generation of mobile communications technology will see the end of the “cell” as the fundamental building block of communication networks.

Today we get some interesting speculation from Federico Boccardi at Alcatel-Lucent’s Bell Labs and a number of pals. These guys have focused on the technologies that are most likely to have a disruptive impact on the next generation of communications tech. And they’ve pinpointed emerging technologies that will force us to rethink the nature of networks and the way devices use them.


The first disruptive technology these guys have fingered will change the idea that radio networks must be made up of “cells” centred on a base station. In current networks, a phone connects to the network by establishing an uplink and a downlink with the local base station.

That looks likely to change. For example, an increasingly likely possibility is that 5G networks will rely on a number of different frequency bands that carry information at different rates and have wildly different propagation characteristics.

So a device might use one band as an uplink at a high rate and another band to downlink at a low rate or vice versa. In other words, the network will change according to a device’s data demands at that instant.

At the same time, new classes of devices are emerging that communicate only with other devices: sensors sending data to a server, for example. These devices will have the ability to decide when and how to send the data most efficiently. That changes the network from a cell-centric one to a device-centric one.

I think out of force of habit, we'll still call it a "cell phone."
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Yesterday on Mars...

Images by NASA; Panorama by The New York Times
The shadow of NASA’s Mars rover Curiosity, looking toward the base of Mount Sharp, which rises more than three miles above the 96-mile-wide Gale Crater floor.

About 3.5 billion years ago — around the time life is thought to have first arisen on Earth — Mars had a large freshwater lake that might well have been hospitable to life, scientists reported Monday.






The lake lay in the same crater where NASA’s Mars rover Curiosity landed last year and has been exploring ever since. It lasted for hundreds or thousands of years, and possibly much longer.


Whether any life ever appeared on Mars is not yet known, and Curiosity was not designed to answer that question. But the data coming back from the planet indicate that the possibility of life, at least in the ancient past, is at least plausible.

John P. Grotzinger, a professor of geology at the California Institute of Technology who is the project scientist for the Curiosity mission, said that if certain microbes like those on present-day Earth had plopped into that ancient Martian lake, they would most likely have found a pleasant place to call home.




NY Times: Ancient Martian Lake May Have Supported Life, Kenneth Chang
Related Posts on #P4TC (note: some embeds no longer available)

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ATE...

At City College of San Francisco, student Daniela Cardenas prepares DNA for analysis during the biotechnology module of Bio 11: Introduction to the Science of Living Organisms. This course was developed with funding from the NSF-ATE grant titled, "Incorporating Molecular Biology into the Undergraduate Curriculum."

Credit: City College of San Francisco, Biology Department

In the U.S., almost half of all undergraduate students are educated at community colleges. The most recent data show that about 40 percent of community-college students represent the first generation in their family to attend college. Eighteen percent are Hispanic, 15 percent are Black, and 12 percent are students with disabilities.



The community college environment reflects not only demographic changes in the population, but also changes in the economy. As less-skilled jobs are less available, there is a need for more education and training in specialized fields to build or rebuild a career path toward a secure future.



This microcosm of students is key to the National Science Foundation's (NSF) commitment to support high-quality educational experiences in science, technology, engineering and mathematics (the STEM fields) while recruiting underrepresented groups into STEM and building the STEM workforce.



In 1992, Congress presented NSF with its first-ever mandate for program creation, known as the Scientific and Advanced Technology Act. In response to this legislation, the NSF established the Advanced Technological Education (ATE) program, with the overall goal of increasing the knowledge and skills of technicians who are educated at associate-degree-granting colleges.



In funding community colleges, the program gives them a leadership role in strengthening the skills of STEM technicians. The community colleges work in partnership with universities, secondary schools, business and industry and government agencies to design and carry out model workforce development initiatives in fields as diverse as biotechnology, cyber security and advanced manufacturing.



National Science Foundation: Preparing high-tech workers, meeting needs of employers


"Those in America with the most favorable view of science tend to be young, well-to-do, college-educated white males. But three-quarters of new American workers in the next decade will be women, non-whites, and immigrants. Failing to rouse their enthusiasm - to say nothing of discriminating against them - isn't only unjust, it's also stupid and self-defeating. It deprives the economy of desperately needed skilled workers."

The Demon-Haunted World: Science as a Candle in the Dark, Carl Sagan, Chapter 19: "No Such Thing as a Dumb Question"
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Hamba Kahle Madiba...


Message from The Nelson Mandela Foundation, The Nelson Mandela Children’s Fund and The Mandela Rhodes Foundation



5th December 2013



It is with the deepest regret that we have learned of the passing of our founder, Nelson Rolihlahla Mandela – Madiba. The Presidency of the Republic of South Africa will shortly make further official announcements.



We want to express our sadness at this time. No words can adequately describe this enormous loss to our nation and to the world.



We give thanks for his life, his leadership, his devotion to humanity and humanitarian causes. We salute our friend, colleague and comrade and thank him for his sacrifices for our freedom. The three charitable organisations that he created dedicate ourselves to continue promoting his extraordinary legacy.



Hamba Kahle Madiba



I will never cease to be amazed at the sheer callousness of our species.



During postings honoring the death of Nelson Mandela, someone took offense at his stance of forgiveness; could not fathom how he could forgive his enemies after such harsh treatment. More "eye-for-an-eye" than anything civilized. At issue was a quote from Madiba expressed in a similar meme as below:


"No person can forgive/love their enemy," and then referred to this great man as weak and by an epithet I assume would also culturally insult them if applied. I've also found those who advocate armed insurrection usually are armchair enthusiasts with no history nor track record of successful violence. I won't bother repeating it: profanity is evidence of limited vocabulary, shallow values and underdeveloped thought processes.



Madiba was 95 as he passed on, his frame worn out from trial, imprisonment and abuse by the system the world would come to know as Apartheid.



It mirrored almost without variation, the system of suppression and segregation in the Jim Crow south, just as unfair, brutal and deadly.



Yet, like King, he refused to hate. Like Gandhi and King, his nonviolent methods were identified with weakness, not strength. [He was a part of forming a counter insurgency after slaughter by the police leading to his arrest and harsh imprisonment, the more remarkable that with that memory, he could still forgive and not forget.] We no longer have segregated lunch counters, education, water fountains, transportation; South Africa and finally America shattered the opaque ceiling of presidential exclusion to their respective highest offices. Sadly, both nations still have a long way to go, even achieving so much.



Despite evidence we've all descended from the same genome that had its origins in Africa, some insist on their specialness; their apartness by essentially giving divine powers to Melanin and particular exalted shades of its gradient hue. It is no wonder the heavens are silent: ET does not phone, and refuses to be bothered with our present unevolved drivel.



Mandela refused to let the psychopathology of others in charge of an unfair and brutal system - Apartheid/Jim Crow - define his humanity: after arrest and imprisonment on Robbin Island, presumably at the time for life. He and F.W. de Klerk - despite a stormy relationship born of those tensions - would share the Nobel Peace Prize and usher the nation's 1st multicultural elections. For that, he was an inspiration in South Africa and the American South.



No, this post has nothing to do with science. But science, like the pursuit of human dignity, should be a shared, noble endeavor. Sometimes the best among us set the example by their humility and courage in the face of crushing adversity. Such courage may be cursed by a demented, myopic few as cowardice; I prefer instead to celebrate it as it passes on to the ages.



World English Dictionary hamba kahle (ˈhæmbə ˈɡɑːʃlɪ) — sentence substitute goodbye, farewell (esp to the dead) [from Xhosa, literally: go well]


Go well, Madiba...go well.

Smiley
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Quantum-Gravity Interface...

Source: Link below

It starts like a textbook physics experiment, with a ball attached to a spring. If a photon strikes the ball, the impact sets it oscillating very gently. But there’s a catch. Before reaching the ball, the photon encounters a half-silvered mirror, which reflects half of the light that strikes it and allows the other half to pass through.



What happens next depends on which of two extremely well-tested but conflicting theories is correct: quantum mechanics or Einstein’s theory of general relativity; these describe the small- and large-scale properties of the universe, respectively.



In a strange quantum mechanical effect called “superposition,” the photon simultaneously passes through and reflects backward off the mirror; it then both strikes and doesn't strike the ball. If quantum mechanics works at the macroscopic level, then the ball will both begin oscillating and stay still, entering a superposition of the two states. Because the ball has mass, its gravitational field will also split into a superposition.



But according to general relativity, gravity warps space and time around the ball. The theory cannot tolerate space and time warping in two different ways, which could destabilize the superposition, forcing the ball to adopt one state or the other.



Knowing what happens to the ball could help physicists resolve the conflict between quantum mechanics and general relativity. But such experiments have long been considered infeasible: Only photon-size entities can be put in quantum superpositions, and only ball-size objects have detectable gravitational fields. Quantum mechanics and general relativity dominate in disparate domains, and they seem to converge only in enormously dense, quantum-size black holes. In the laboratory, as the physicist Freeman Dyson wrote in 2004, “any differences between their predictions are physically undetectable.”



In the past two years, that widely held view has begun to change. With the help of new precision instruments and clever approaches for indirectly probing imperceptible effects, experimentalists are now taking steps toward investigating the interface between quantum mechanics and general relativity in tests like the one with the photon and the ball. The new experimental possibilities are revitalizing the 80-year-old quest for a theory of quantum gravity.



Quanta Magazine: Physicists Eye Quantum-Gravity Interface
Natalie Wolchover
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Measuring Infinity...

Source: Link below

In the course of exploring their universe, mathematicians have occasionally stumbled across holes: statements that can be neither proved nor refuted with the nine axioms, collectively called “ZFC,” that serve as the fundamental laws of mathematics. Most mathematicians simply ignore the holes, which lie in abstract realms with few practical or scientific ramifications. But for the stewards of math’s logical underpinnings, their presence raises concerns about the foundations of the entire enterprise.



“How can I stay in any field and continue to prove theorems if the fundamental notions I’m using are problematic?” asks Peter Koellner, a professor of philosophy at Harvard University who specializes in mathematical logic.



Chief among the holes is the continuum hypothesis, a 140-year-old statement about the possible sizes of infinity. As incomprehensible as it may seem, endlessness comes in many measures: For example, there are more points on the number line, collectively called the “continuum,” than there are counting numbers. Beyond the continuum lie larger infinities still — an interminable progression of evermore enormous, yet all endless, entities. The continuum hypothesis asserts that there is no infinity between the smallest kind — the set of counting numbers — and what it asserts is the second-smallest — the continuum. It “must be either true or false,” the mathematical logician Kurt Gödel wrote in 1947, “and its undecidability from the axioms as known today can only mean that these axioms do not contain a complete description of reality.”



Quanta Magazine: To Settle Infinity Dispute, a New Law of Logic
Natalie Wolchover
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Genius Materials...


LOOK at your cell phone. No, seriously: the embed below will hopefully inspire you to.

Your smart phone, your Kindle, your Nook, your pad (name the brand), your flat screen mounted proudly above your fireplaces are not the result of "magic," wishful thinking or dumb luck. The skills required to understand and design them are as accessible as an open book, electronic or analog pulp variety, and the will to read it and work out the difficulties with the material.

The technological advances you enjoy will not create themselves in perpetuity. You need scientists, engineers; you need an education system that prepares our youth for the competition that in every other country is advancing quite successfully. We are once again lagging international PISA results, albeit in this country, biased by socioeconomic factors (purposely, my hypothesis) not accounted for in the PISA eval. Wealthy kids against the globe do reasonably well; inner city children have myriad challenges for their attention. The testing curriculum in this country also assumes no impact from social stratification.

We can, as national ostriches with our heads buried in sand and up our collective anal cavities, ignore this disparity; continue on our inane "teach-to-the-test" regime, or accept our coming decline gracefully. Magic nor magical thinking* will be our salvation (STEM will, if allowed), and grace is something from the American electorate I've seen wanting.

* "A new era of the magical explanation of the world is rising, an explanation based on will rather than knowledge. There is no truth, in either the moral or the scientific sense." Adolf Hitler (Carl Sagan, "The Demon-Haunted World: Science as A Candle in the Dark," Chapter 14 - Anti-science)






* "The aide said that guys like me were "in what we call the reality-based community," which he defined as people who "believe that solutions emerge from your judicious study of discernible reality." ... "That's not the way the world really works anymore," he continued. "We're an empire now, and when we act, we create our own reality. And while you're studying that reality—judiciously, as you will—we'll act again, creating other new realities, which you can study too, and that's how things will sort out. We're history's actors ... and you, all of you, will be left to just study what we do."






—Unnamed White House aide[1] 


The quote is now widely attributed to Karl Rove. (Rational Wiki)



More at: Science.NASA.gov

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