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thinkahol *

Scientists report first solar cell producing more electrons in photocurrent than solar ... - 0 views

www.physorg.com/...ll-electrons-photocurrent.html

Scientists report first solar cell producing more electrons in photocurrent than photons entering

shared by thinkahol * on 16 Dec 11 - No Cached
  • thinkahol * on 16 Dec 11
     
    (PhysOrg.com) -- Researchers from the National Renewable Energy Laboratory (NREL) have reported the first solar cell that produces a photocurrent that has an external quantum efficiency greater than 100 percent when photoexcited with photons from the high energy region of the solar spectrum
Infogreen Global

Extracting energy from the waste water and salt water - 0 views

infogreenglobal.com/the-waste-water-and-salt-water

shared by Infogreen Global on 01 Mar 12 - No Cached
  • Infogreen Global on 01 Mar 12
     
    The technologies Logan refers to are microbial fuel cells (MFC)- which use wastewater and naturally occurring bacteria to produce electricity - and reverse electrodialysis (RED) - which produces electricity directly from the salinity gradient between salty and fresh water. The combined technology creates a microbial reverse-electrodialysis cell (MRC).
thinkahol *

The future of metabolic engineering: Designer molecules, cells and microorganisms - 0 views

www.sciencedaily.com/...101202144238.htm

The future of metabolic engineering: Designer molecules cells and microorganisms

shared by thinkahol * on 05 Dec 10 - No Cached
  • thinkahol * on 05 Dec 10
     
    ScienceDaily (Dec. 3, 2010) - Will we one day design and create molecules, cells and microorganisms that produce specific chemical products from simple, readily-available, inexpensive starting materials? Will the synthetic organic chemistry now used to produce pharmaceutical drugs, plastics and a host of other products eventually be surpassed by metabolic engineering as the mainstay of our chemical industries? Yes, according to Jay Keasling, chemical engineer and one of the world's foremost practitioners of metabolic engineering.
thinkahol *

Solar power in Ontario could produce almost as much power as all U.S. nuclear reactors,... - 0 views

www.sciencedaily.com/...100414122643.htm

Solar power in Ontario could produce almost as much all U.S. nuclear reactors studies find

shared by thinkahol * on 07 Jan 11 - No Cached
  • thinkahol * on 07 Jan 11
     
    ScienceDaily (Apr. 16, 2010) - Solar power in southeastern Ontario has the potential to produce almost the same amount of power as all the nuclear reactors in the United States, according to two studies conducted by the Queen's University Applied Sustainability Research Group located in Kingston, Canada.
thinkahol *

Researchers create light from 'almost nothing' - 0 views

www.physorg.com/...-create-light-from-almost.html

Researchers create light from 'almost nothing'

shared by thinkahol * on 08 Jun 11 - No Cached
  • thinkahol * on 08 Jun 11
     
    (PhysOrg.com) -- A group of physicists working out of Chalmers University of Technology in Gothenburg, Sweden, have succeeded in proving what was until now, just theory; and that is, that visible photons could be produced from the virtual particles that have been thought to exist in a quantum vacuum. In a paper published on arXiv, the team describes how they used a specially created circuit called a superconducting quantum interference device (SQUID) to modulate a bit of wire length at a roughly five percent of the speed of light, to produce visible "sparks" from the nothingness of a vacuum.
Infogreen Global

Metamaterials Boosts Electromagnetism Safely - 0 views

infogreenglobal.com/boosts-electromagnetism-safely

metamaterials

shared by Infogreen Global on 01 Mar 12 - No Cached
  • Infogreen Global on 01 Mar 12
     
    In the magnetic levitation train example, conventional electromagnets could be supplemented by a metamaterial, which would have been designed to produce significantly higher intensities of magnetic fields using the same amount of electricity.
thinkahol *

Tiny LEDs Pump out Quantum-Entangled Photons | 80beats | Discover Magazine - 0 views

blogs.discovermagazine.com/...-out-quantum-entangled-photons

leds quantum entanglement

shared by thinkahol * on 03 Jun 10 - Cached
  • thinkahol * on 03 Jun 10
     
    LEDsThe strange quantum state of entanglement isn't just challenging to think about, it's hard to create. This "spooky" phenomenon-in which two particles are linked, even if they're separated by distance-can be created by scientists in the lab using bulky lasers. But scientists published a study in Nature today in which they created a light-emitting diode (LED) that produces entangled photons.
thinkahol *

Needle free flu vaccinations being offered in Andover - Video | NJ.com - 0 views

videos.nj.com/...e_free_flu_vaccinations_b.html

Needle free flu vaccinations being offered in Andover - Video | NJ.com

shared by thinkahol * on 28 Sep 10 - No Cached
  • thinkahol * on 28 Sep 10
     
    This flu season, people with a fear of needles have an alternative. A new device made by PharmaJet uses spring tension to produce a high velocity jet of air to deliver medications and vaccines through the skin. Most people coming in for the flu shot at the Andover Senior Center still opted for the standard needle but the new way is gaining popularity. Nearly one third of those getting a vaccine chose the PharmaJet. (Video by Andre Malok/The Star-Ledger)
Infogreen Global

ILEK to Build Plus-Energy House of the Future - 0 views

infogreenglobal.com/lus-energy-house-of-the-future

electric-vehicles photovoltaic

shared by Infogreen Global on 14 Dec 10 - No Cached
  • Infogreen Global on 14 Dec 10
     
    The layout of the interior spaces and the distribution of opaque and glazed cladding surfaces are optimized for minimal energy loss, maximum natural daylighting, and selective solar gain. This energy optimization combined with extensive building integration of photovoltaic and solar thermal systems allow the house to produce a net annual surplus of energy, more than is needed to supply the house and its electric vehicles.
thinkahol *

First Quantum Effects Seen in Visible Object - 0 views

io9.com/#!5497720/first-quantum-effects-seen-in-visible-object

First Quantum Effects Seen in Visible Object

shared by thinkahol * on 08 Mar 11 - No Cached
  • thinkahol * on 08 Mar 11
     
    Aaron O'Connell and colleagues at the University of California, Santa Barbara, did not actually produce a cat that was dead and alive at the same time, as Erwin Schrödinger proposed in a notorious thought experiment 75 years ago. But they did show that a tiny resonating strip of metal - only 60 micrometres long, but big enough to be seen without a microscope - can both oscillate and not oscillate at the same time. Alas, you couldn't actually see the effect happening, because that very act of observation would take it out of superposition.
Infogreen Global

Rare-Earth Elements Provides 25 Precent Greater Thermoelectric Conversion Efficiency - 0 views

infogreenglobal.com/electric-conversion-efficiency

Peltier-effect thermoelectric-materials

shared by Infogreen Global on 16 Feb 11 - No Cached
  • Infogreen Global on 16 Feb 11
     
    The durable and relatively easy-to-produce material has innumerable applications, including recycling waste heat from industrial refineries or using auto exhaust heat to help recharge the battery in an electric car.
thinkahol *

Who is Peter Joseph? | Watch Free Documentary Online - 0 views

topdocumentaryfilms.com/who-is-peter-joseph

Who is Peter Joseph? | Watch Free Documentary Online

shared by thinkahol * on 27 Feb 11 - No Cached
  • thinkahol * on 27 Feb 11
     
    In late 2009, Charles Robinson was able to interview Peter Joseph, the creator of Zeitgeist: The Movie, Zeitgeist: Addendum, Zeitgeist: Moving Forward, several lectures and a presentation; Founder of The Zeitgeist Movement and a friend of Jack Fresco, in his home. He described himself and his life in details in what is likely a rare interview. He was kind enough to provide him with previously unreleased media and video and in turn Charles did his best to create a documentary (albeit kinda poor in quality compared to his work!) that would help express who this person is. Peter Joseph was born in North Carolina to a middle class family. He has said in interviews that his mother's role as a social worker helped shape his opinion and impressions of American life. He later moved to New York to attend art school. Currently he lives and works in New York City as a freelance film editor/composer/producer for various industries. Due to the controversial content of his films and a desire to keep his day job private, he has not released his full name to the public.
thinkahol *

‪Michael Pawlyn: Using nature's genius in architecture‬‏ - YouTube - 0 views

www.youtube.com/watch

‪Michael Pawlyn: Using nature's genius in architecture‬‏ - YouTube

shared by thinkahol * on 28 Jul 11 - No Cached
  • thinkahol * on 28 Jul 11
     
    http://www.ted.com How can architects build a new world of sustainable beauty? By learning from nature. At TEDSalon in London, Michael Pawlyn describes three habits of nature that could transform architecture and society: radical resource efficiency, closed loops, and drawing energy from the sun. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate.
thinkahol *

‪Quantum Computers and Parallel Universes‬‏ - YouTube - 0 views

www.youtube.com/watch

‪Quantum Computers and Parallel Universes‬‏ - YouTube

shared by thinkahol * on 31 Jul 11 - No Cached
  • thinkahol * on 31 Jul 11
     
    Complete video at: http://fora.tv/2009/05/23/Marcus_Chown_in_Conversation_with_Fred_Watson Marcus Chown, author of Quantum Theory Cannot Hurt You: A Guide to the Universe, discusses the mechanics behind quantum computers, explaining that they function by having atoms exist in multiple places at once. He predicts that quantum computers will be produced within 20 years. ----- The two towering achievements of modern physics are quantum theory and Einsteins general theory of relativity. Together, they explain virtually everything about the world in which we live. But almost a century after their advent, most people havent the slightest clue what either is about. Radio astronomer, award-winning writer and broadcaster Marcus Chown talks to fellow stargazer Fred Watson about his book Quantum Theory Cannot Hurt You. - Australian Broadcasting Corporation Marcus Chown is an award-winning writer and broadcaster. Formerly a radio astronomer at the California Institute of Technology, he is now cosmology consultant of the weekly science magazine New Scientist. The Magic Furnace, Marcus' second book, was chosen in Japan as one of the Books of the Year by Asahi Shimbun. In the UK, the Daily Mail called it "a dizzy page-turner with all the narrative devices you'd expect to find in Harry Potter". His latest book is called Quantum Theory Cannot Hurt You.
Todd Suomela

What Happens If Science Becomes a Low-Yield Activity? « The Scholarly Kitchen - 1 views

scholarlykitchen.sspnet.org/...e-becomes-a-low-yield-activity

science discovery history sts decline innovation funding research bibliometrics

shared by Todd Suomela on 31 Jul 11 - No Cached
  • Todd Suomela on 31 Jul 11
     
    "And what if science becomes - or has become - lower-yield? Is that a reason to reconsider funding policies? Rationally, looking at the cost-benefit may already have effects on resource and funding allocations. Is it unreasonable to assume that science will continue to produce large, demonstrable advances and insights of the size and importance of the major breakthroughs?"
  • thinkahol * on 03 Aug 11
     
    I think the comments under the linked article sufficiently refute it.
thinkahol *

First successful transplantation of a synthetic windpipe | KurzweilAI - 0 views

www.kurzweilai.net/tation-of-a-synthetic-windpipe

First successful transplantation of a synthetic windpipe | KurzweilAI

shared by thinkahol * on 16 Jul 11 - No Cached
  • thinkahol * on 16 Jul 11
     
    A 36-year-old man has received the world's first synthetic trachea, made from a synthetic scaffold seeded with his own stem cells, in an operation at the Karolinska University Hospital in Stockholm, Sweden. Professor Paolo Macchiarini of Karolinska University Hospital and Karolinska Institutet led an international team, including professor Alexander Seifalian from University College London, who designed and built the nanocomposite tracheal scaffold, and Harvard Bioscience, which produced a specifically designed bioreactor used to seed the scaffold with the patient´s own stem cells. The cells were grown on the scaffold inside the bioreactor for two days before transplantation to the patient. Because the cells used to regenerate the trachea were the patient's own, there has been no rejection of the transplant and the patient is not taking immunosuppressive drugs. "The big conceptual breakthrough is that we can move from transplanting organs to manufacturing them for patients," says David Green, the president of Harvard Bioscience in Holliston, Massachusetts. Transplantations of tissue-engineered windpipes with synthetic scaffolds in combination with the patient's own stem cells as a standard procedure means that patients will not have to wait for a suitable donor organ. Patients could benefit from earlier surgery and have a greater chance of cure. This would be of especially great value for children, since the availability of donor tracheas is much lower than for adult patients.
thinkahol *

Stressed-DNA repair protein identified | KurzweilAI - 0 views

www.kurzweilai.net/-dna-repair-protein-identified

Stressed-DNA repair protein identified | KurzweilAI

shared by thinkahol * on 21 Jun 11 - No Cached
  • thinkahol * on 21 Jun 11
     
    Vera Gorbunova and Andrei Seluanov of the University of Rochester have found that human cells undergoing oxidative stress caused by environmental chemicals or routine cellular processes produce a protein (SIRT6) that stimulates cells to repair DNA double-strand breaks, thought to be associated with premature aging and cancer. The team first measured levels of SIRT6 in stressed cells, then treated a second group of stressed cells with a drug that deactivates the protein. DNA repair in the second group stopped, confirming SIRT6′s role.  The team also found that SIRT6 acts in concert with another protein, called PARP1, to make the repairs. Furthermore, the team found that increased levels of SIRT6 lead to faster DNA repair. They suspect that the protein acts as a "master regulator," coordinating stress and DNA repair activities. Ref.: Zhiyong Mao, Christopher Hine, Xiao Tian, Michael Van Meter, Matthew Au, Amita Vaidya, Andrei Seluanov, and Vera Gorbunova. SIRT6 Promotes DNA Repair Under Stress by Activating PARP1. Science 17 June 2011: 1443-1446. [DOI:10.1126/science.1202723]
Todd Suomela

The Technium: The World Without Technology - 0 views

www.kk.org/...the_world_witho.php

technology technology-effects history anthropology language evolution culture archaeology

shared by Todd Suomela on 10 Apr 09 - Cached
  • Although strictly speaking simple tools are a type of technology made by one person, we tend to think of technology as something much more complicated. But in fact technology is anything designed by a mind. Technology includes not only nuclear reactors and genetically modified crops, but also bows and arrows, hide tanning techniques, fire starters, and domesticated crops. Technology also includes intangible inventions such as calendars, mathematics, software, law, and writing, as these too derive from our heads. But technology also must include birds' nests and beaver dams since these too are the work of brains. All technology, both the chimp's termite fishing spear and the human's fishing spear, the beaver's dam and the human's dam, the warbler's hanging basket and the human's hanging basket, the leafcutter ant's garden and the human's garden, are all fundamentally natural. We tend to isolate human-made technology from nature, even to the point of thinking of it as anti-nature, only because it has grown to rival the impact and power of its home. But in its origins and fundamentals a tool is as natural as our life.
  • The gravity of technology holds us where we are. We accept our attachment. But to really appreciate the effects of technology – both its virtues and costs -- we need to examine the world of humans before technology. What were our lives like without inventions? For that we need to peek back into the Paleolithic era when technology was scarce and humans lived primarily surrounded by things they did not make. We can also examine the remaining contemporary hunter-gatherer tribes still living close to nature to measure what, if anything, they gain from the small amount of technology they use.
  • Then about 50,000 years ago something amazing happened. While the bodies of early humans in Africa remained unchanged, their genes and minds shifted noticeably. For the first time hominins were full of ideas and innovation. These newly vitalized modern humans, which we now call Sapiens, charged into new regions beyond their ancestral homes in eastern Africa. They fanned out from the grasslands and in a relatively brief burst exploded from a few tens of thousands in Africa to an estimated 8 million worldwide just before the dawn of agriculture 10,000 years ago.
  • ...1 more annotation...
  • It should have been clear to Neanderthal, as it is now clear to us in the 21st century, that something new and big had appeared -- a new biological and geological force. A number of scientists (Richard Klein, Ian Tattersall, William Calvin, among many others) think that the "something" that happened 50,000 years ago was the invention of language. Up until this point, humanoids were smart. They could make crude tools in a hit or miss way and handle fire – perhaps like an exceedingly smart chimp. The African hominin's growing brain size and physical stature had leveled off its increase, but evolution continued inside the brain.  "What happened 50,000 years ago," says Klein, "was a change in the operating system of humans. Perhaps a point mutation effected the way the brain is wired that allowed languages, as we understand language today: rapidly produced, articulate speech."  Instead of acquiring a larger brain, as the Neanderthal and Erectus did, Sapien gained a rewired brain.  Language altered the Neanderthal-type mind, and allowed Sapien minds for the first time to invent with purpose and deliberation. Philosopher Daniel Dennet crows in elegant language: "There is no step more uplifting, more momentous in the history of mind design, than the invention of language. When Homo sapiens became the beneficiary of this invention, the species stepped into a slingshot that has launched it far beyond all other earthly species." The creation of language was the first singularity for humans. It changed everything. Life after language was unimaginable to those on the far side before it.
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