Slashdot Mirror
Domain: nature.com
Stories and comments across the archive that link to nature.com.
Stories · 1,757
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Rivers Ran with Gold... 3 Billion Years Ago
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Mutant Gene Responsible for Speech?
An anonymous submitter writes: "A new study published in Nature reports that humans developed speech and language 200,000 years ago as a result of gene mutation. Washington Post story with more background. The mutation in the FOXP2 gene allowed humans greater control over their mouth and throat muscles, and gave them the ability to produce new sounds. It was apparently such an advantageous mutation that it quickly swept through the human population (10,000 - 20,000 years) almost entirely wiping out earlier versions. This development seems to also match up closely with the time period humans began developing culture. Researchers next want to try altering the gene in mice to see what happens, although they suspect there are many other genes involved. So, how long until I can get a talking dog?" -
Peer-Review Process Confirms Contrails Climate Effect
An anonymous reader writes: "According to NPR, researcher David Travis (who was mentioned in two previous articles has been published in today's issue of nature as confirming jet contrails effects on the earth's climate. The publication of this paper in arguably the most prestigious peer-reviewed scientific journal of all should help serve to assuage the spurious doubts many slashdotters voiced back in May." -
2,600-year-old Mayan Chocolate Found
Peter T Ermit writes "In this week's issue of Nature, scientists report that they have discovered traces of chocolate in a Mayan spouted jug from 600 BC. (The Mayans liked to drink their chocolate rather than eat it.) This is about 1000 years older than the next oldest chemical detection of cocoa. Maybe the Maya rabbit in the moon was really the Quik bunny." -
Printing Chips
batty writes :"Nature has this article about a process that uses a quartz die and a laser to mechanically print features onto chips instead of photo-etching them. The article mentions engraving a silicon wafer with features only 10 nanometres in size, as opposed to 130 nanometres using photlithography, and the process is quicker, simpler, and more environmentally friendly than current processes. Which is nice." -
Hollow Optical Fibres Can Now Process Signals
Ami_Chan writes: "According to Nature, researchers at Bell Labs have created a new type of optical fibre. This fibre is hollow, and can be tuned to different wavelengths of light using 'plugs of fluid' and temperature changes within the fibre. This allows the fibres to process signals as well as transmit them. The full article is here." -
Hollow Optical Fibres Can Now Process Signals
Ami_Chan writes: "According to Nature, researchers at Bell Labs have created a new type of optical fibre. This fibre is hollow, and can be tuned to different wavelengths of light using 'plugs of fluid' and temperature changes within the fibre. This allows the fibres to process signals as well as transmit them. The full article is here." -
Laser Powered Paper Plane Takes Flight
RobertTaylor writes: "Ananova is reporting that Japanese scientists have developed a laser powered paper plane. A blast of light from a commercial laser heats up a droplet of acrylic polymer or water on its surface which acts as fuel. Full story here" Nature also has a story on this advance. -
Is the Universe its own Largest Computer?
missingmatterboy writes: "If the universe is simply a giant calculating machine, how big is it? Seth Lloyd, who two years ago worked out the theoretical maximum possible power a laptop computer could posess, has now "estimated how much information the Universe can contain, and how many calculations it has performed since the Big Bang." His conclusion: you'd need about 10^90 bits, with something like 10^120 manipulations of those bits, to express the universe since time began." -
Cloned Organs Demoed in Laboratory
texchanchan writes "Yahoo reports (warning: picture of cow fetus in bottle) that scientists have grown functioning, 'kidney-like' organs from cloned tissue, and put them back in the progenitor where they do their kidneyish job quite well. The scientists cloned embryos, from which kidney cells were extracted, and 'seeded [this] kidney tissue onto artificial structures that they hoped would grow into kidneys when transplanted back into the steer they were cloned from. ... By themselves, the kidney cells formed a small, kidney-like organ.' Regeneration here we come... especially if somebody learns how to do just the desired organ, not a whole new you with its potential for human rights, etc. To be published in June's Nature Biotechnology (costly registration required)." -
PR Firm Fakes Online Posters to Stunt Research
revmuddswife writes: "I always suspected that some of the soapbox lunatics I was arguing with online weren't what they made themselves out to be, but now British columnist George Monbiot has raised the issue about how Internet discussions may be undermined by Invented PR People *cue scary organ music*. The article relates to a biotech paper written by two University of Calif., Berkeley scientists, Quist and Chapela, that was retracted in Nature last month, partially on the basis of allegations on a listserver and online discussion. Monbiot looks into the identities of some of the individuals leading the criticism, and finds out that what we all know is true: nobody could be what they seem online. In fact, they might even be slimier than we suspect." -
New Rocket Fuel: A Pinch of Salt
samjam writes "'Rodney Bartlett devised a new form of solid nitrogen salt' says Ananova reporting on an article in Nature. 'Scientists at the University of Florida say it should be possible to make nitrogen with atoms linked in groups of five.' 'If their calculations are correct, the new form will have twice as much energy as the same volume of hydrazine which is the compound propelling many spacecraft today.' This new fuel could be a boon for home-brew rocket builders?" Note that by "salt", they don't mean table salt, just a compound of ions. Nitrogen compounds are important in explosives because the formation of nitrogen gas (which is very stable) can give off a lot of energy - so whatever you can do to create new and crazy nitrogen structures can potentially increase the energy density of your explosives. -
New Rocket Fuel: A Pinch of Salt
samjam writes "'Rodney Bartlett devised a new form of solid nitrogen salt' says Ananova reporting on an article in Nature. 'Scientists at the University of Florida say it should be possible to make nitrogen with atoms linked in groups of five.' 'If their calculations are correct, the new form will have twice as much energy as the same volume of hydrazine which is the compound propelling many spacecraft today.' This new fuel could be a boon for home-brew rocket builders?" Note that by "salt", they don't mean table salt, just a compound of ions. Nitrogen compounds are important in explosives because the formation of nitrogen gas (which is very stable) can give off a lot of energy - so whatever you can do to create new and crazy nitrogen structures can potentially increase the energy density of your explosives. -
Nature's Antibiotic Factory
Vancouverite writes "The genome of Streptomyces coelicolor is unveiled and published in Nature. It and its relatives produce two-thirds of the natural antibiotics in use, including tetracycline and erythromycin, plus other pharmaceuticals such as anticancer agents and immunosuppresssants." -
Mini Microbes
ComaVN writes "According to an article in Nature, a group at the University of Regensburg, Germany has found the smallest lifeform ever. It lives under extremely hostile (to us that is) conditions, in boiling water, and it has a genome of only about half a million DNA letters. Of course, smallest lifeform depends heavily on your definition of life, as most virii are actually smaller. But let's not get into that discussion :p" -
Mini Microbes
ComaVN writes "According to an article in Nature, a group at the University of Regensburg, Germany has found the smallest lifeform ever. It lives under extremely hostile (to us that is) conditions, in boiling water, and it has a genome of only about half a million DNA letters. Of course, smallest lifeform depends heavily on your definition of life, as most virii are actually smaller. But let's not get into that discussion :p" -
Paintable LCDs
frambooz writes "Nature Magazine has an article about a team from the Eindhoven University of Technology and Philips Research Laboratories in the Netherlands, who discovered a way to create 1 layer paintable LCD-screens. It can be used on glass and plastic already, and fabric in the near future. 'Homes of the future could change their wallpaper from cream to cornflower blue at the touch of a button, says Dirk Broer. His team has developed paint-on liquid crystal displays (LCDs) that offer the technology. (...) The technique could create giant TV screens, digital billboards and walls that change colour. Slim, plastic LCDs sewn into fabric could display e-mail or text messages on your sleeve.' Which leads to another problem: with an LCD-suit, where would you put which app?" There's also an AP article. -
Paintable LCDs
frambooz writes "Nature Magazine has an article about a team from the Eindhoven University of Technology and Philips Research Laboratories in the Netherlands, who discovered a way to create 1 layer paintable LCD-screens. It can be used on glass and plastic already, and fabric in the near future. 'Homes of the future could change their wallpaper from cream to cornflower blue at the touch of a button, says Dirk Broer. His team has developed paint-on liquid crystal displays (LCDs) that offer the technology. (...) The technique could create giant TV screens, digital billboards and walls that change colour. Slim, plastic LCDs sewn into fabric could display e-mail or text messages on your sleeve.' Which leads to another problem: with an LCD-suit, where would you put which app?" There's also an AP article. -
Gamma Ray Bursts are Nascent Black Holes
tjgoodwin writes "A paper (PDF format) published in Nature shows, for the first time, that Gamma Ray Bursts are the result of a massive (> 10 solar masses) star collapsing to form a black hole. PPARC has a press release which includes a notable picture of a T. Rex glancing nervously over its shoulder at a supernova!" -
Solution to the 'Spinning Egg' Problem
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Solution to the 'Spinning Egg' Problem
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Interesting Concepts in Search Engines
TheMatt writes "A new type of search algorithm is described at NSU. In a way, it is the next generation over Google. It works off the principle that most web pages link to pages that concern the same topic, forming communities of pages. Thus, for academics, this would be great as the engine could find the community of pages related to a certain subject. The article also points out this would be good as an actually useful content filter, compared to today's text-based ones." -
Interesting Concepts in Search Engines
TheMatt writes "A new type of search algorithm is described at NSU. In a way, it is the next generation over Google. It works off the principle that most web pages link to pages that concern the same topic, forming communities of pages. Thus, for academics, this would be great as the engine could find the community of pages related to a certain subject. The article also points out this would be good as an actually useful content filter, compared to today's text-based ones." -
Bilingual Brain Explored
Aurorya writes: "Nature.com posts this article about the this brain activities in bilingual versus monolingual people. The article states that when a bilingual person reads a list of words with one language in mind, the words are "heard" in the brain, and those words of another understood language or jibberish are ignored in the same way; the brain makes no effort to recall the meaning of the word in the other language. This is in contrast to monoligual folks, who search for meaning immediately." -
Glowing Nanobots Map Microscopic Surfaces
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Glowing Nanobots Map Microscopic Surfaces
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Marvel Universe Is Almost Like *Real Life* Society
TheMatt writes "Scientists at the University of the Balearic Isles have analyzed the Marvel Universe and found that it is almost like real society. The team studied the statistical properties of each character, the books they were in, and who else appeared in them (through resources like the MCP). While there were some similarities to real society, a close look revealed the artificiality. For example, the MU isn't very clustered, only 1.5x that of a random network; real life is about 10x more clustered. Of course, the realities of comics (the business) are why this occurs. Also, they found the most networked of all Marvel heroes was Steve Rogers, Captain America himself." -
Lasetron to Produce Zeptosecond Flashes of Light
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Lasetron to Produce Zeptosecond Flashes of Light
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Capturing Waste Heat with Quantum Mechanics
TheMatt writes: "There is a summary of a Phys.Rev.Lett. article up at Nature Science Update that describes a design for a 'quantum afterburner' that would improve the efficiency of an Otto engine. It improves the efficiency by using a laser and maser to extract energy from the hot exhaust of the engine. In fact, the process could enhance performance beyond that of the "ideal" Otto engine." -
Capturing Waste Heat with Quantum Mechanics
TheMatt writes: "There is a summary of a Phys.Rev.Lett. article up at Nature Science Update that describes a design for a 'quantum afterburner' that would improve the efficiency of an Otto engine. It improves the efficiency by using a laser and maser to extract energy from the hot exhaust of the engine. In fact, the process could enhance performance beyond that of the "ideal" Otto engine." -
Photocatalyst Cracks Water with Sunlight
lonenut writes: "With fuel cell laptop batteries in the news lately, I thought this article on water-cracking photocatalysts would be good reading. A bit short on details, but apparently Zhigang Zou of the NIAIST in Tsukuba, Japan is working on a promising catalyst which creates hydrogen and oxygen from water and sunlight. I look forward to someday watering my laptop just like the houseplants." -
Transplanting Frozen Organs
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Pain-free mice
mccalli writes: "Not input devices, but real live squeaky things. Apparently, Canadian scientists are trying to breed mice that do not feel pain. The eventual goal is a better pain killer for humans, but this is said to be a long way off. More in the Nature article here." -
Black Holes and Hidden Dimensions
Slackware Geek writes "It is being reported in the Nature Science Update that a new observitory being built in Argentina to study cosmic rays could detect extra hidden dimensions if they exist. 'Cosmic rays could find holes in Standard Model of particle physics ...If the Universe contains invisible, extra dimensions, then cosmic rays that hit the atmosphere will produce tiny black holes. These black holes should be numerous enough for the observatory to detect.'" -
Black Holes and Hidden Dimensions
Slackware Geek writes "It is being reported in the Nature Science Update that a new observitory being built in Argentina to study cosmic rays could detect extra hidden dimensions if they exist. 'Cosmic rays could find holes in Standard Model of particle physics ...If the Universe contains invisible, extra dimensions, then cosmic rays that hit the atmosphere will produce tiny black holes. These black holes should be numerous enough for the observatory to detect.'" -
The Center of the Galaxy
Dr. A. van Code writes: "NASA's Chandra X-ray Observatory has captured a stunning view of the center of our Milky Way galaxy, with hundreds of white dwarf stars, neutron stars and black holes bathed in an incandescent fog of 10-million-degree gas around a supermassive black hole. Daniel Wang of the University of Massachusetts at Amherst and co-workers took the 30 separate images covering a 400- by 900-light-year swath of the center of the galaxy, a region 26,000 light years away from Earth, using the orbiting X-ray satellite's Advanced CCD Imaging Spectrometer (ACIS). His paper appears in the Jan. 10, 2002, issue of the journal Nature. There is also a Chandra page at Harvard, and an AP wire story." -
The Center of the Galaxy
Dr. A. van Code writes: "NASA's Chandra X-ray Observatory has captured a stunning view of the center of our Milky Way galaxy, with hundreds of white dwarf stars, neutron stars and black holes bathed in an incandescent fog of 10-million-degree gas around a supermassive black hole. Daniel Wang of the University of Massachusetts at Amherst and co-workers took the 30 separate images covering a 400- by 900-light-year swath of the center of the galaxy, a region 26,000 light years away from Earth, using the orbiting X-ray satellite's Advanced CCD Imaging Spectrometer (ACIS). His paper appears in the Jan. 10, 2002, issue of the journal Nature. There is also a Chandra page at Harvard, and an AP wire story." -
Cooperation Works if Majority Can Punish Freeloaders
plasmid writes: "Some Swiss economists ran an investment game... they found that if the majority could punish freeloaders, cooperation flourished. I think this has implications for cooperative peer-to-peer systems and, to a lesser extent, for open source development. I'm so inspired I plan to go out an punish someone right now, as a matter of fact." I had just read this article the other day (go memepool), so this Nature piece seems oddly apropos. -
Light Stopped, Held And Re-emitted By A Crystal
nherc writes: "An article in Nature talks about an incredible new crystal that can actual stop and hold light to be later emitted. It's mentioned light has previously been "slowed" by super cooled gases, but this certainly blows that away. They mention this could be a major step towards quantum computing." -
Another New State of Matter
llamalicious writes: "And you thought a Nobel Prize for the discovery of Bose-Einstein Condensates was nifty, SciAm's reporting that scientists are taking this new discovery one step further, and have once more proven that we don't really know anything about quantum physics. This new state is being called a patterned fluid, which could supposedly move the field of quantum computing ahead." -
The Eyes Have It
Feelgood writes: "Yahoo is carrying a Reuters report that thermal imaging may be used in airports to detect liars. Shouldn't be a problem that 1 out of 4 liars will get away and 1 in 10 innocents will be incorrectly nailed." There's a UPI story about the lie detector possibilities and a blurb in Nature. From the UPI article, the inventor has a good appreciation of the ethical considerations. Will anyone else care? -
World Technology Awards 2001
struanr writes: "Nature has published the winners and finalists of the World Technology Awards, which are run by the World Technology Network. "These are about those individuals whose work today will, in our opinion, create the greatest "ripple effects" in the future... in both expected and unexpected ways." There are some big names chosen here, and some glaring omissions." -
World Technology Awards 2001
struanr writes: "Nature has published the winners and finalists of the World Technology Awards, which are run by the World Technology Network. "These are about those individuals whose work today will, in our opinion, create the greatest "ripple effects" in the future... in both expected and unexpected ways." There are some big names chosen here, and some glaring omissions." -
GM DNA Spreading...
Raphter writes: "Frightening study on GM crop genes spreading to wild plants. Original [subscription required] is here." The best part is the farmers who have been sued because plants on their land showed traces of this same DNA, and the agriculture giants alleged the farmers must have planted them. -
Linking Hardware To Wetware
Vikki_R. writes: "Wired has an article about grafting a microelectric circuit directly onto a human brain cell. Researchers at the University of Texas at Austin have been working on developing an interface between semiconductors and neurons. Imagine being able to give your computer a piece of your mind ..." Update: 11/25 22:54 GMT by T : Here's an earlier post linking to a different article on the same research. -
Nerve Cells Connected to Semi-Conductors
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Nerve Cells Connected to Semi-Conductors
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New Semiconductor Coolers
An anonymous reader writes: "A new thermoelectric material is 2.4X as efficient as best existing materials. The new solid state heat pumps can provide 700 watts of cooling (nearly one horsepower) with just one square centimeter. These new materials have the potential to replace current heat sinks, thermoelectric generators and mechanical heat pumps. You can also read an article in nature." -
Bose-Einstein Condensate: On a chip
The Evil Dwarf from Hell writes "This week's Nature has an article (paid subscription required) by a team that has created a Bose-Einstein Condensate (BEC) using an "atom chip". The chip suspends atoms over the surface using various fields and allows them to be moved from one location to another. A couple of advantages are relaxed contraints on the vacuum and increased speed of BEC formation (down to less than 1 second). (A quickie is available on Physics News Update). This goes with a news story in last weeks Science about 1d and 2d BECs. (A search on arXiv.org gives 167 hits in the last year for BECs)."
