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Science

Instant Messaging With Neutrinos 262

Posted by samzenpus from the truly-instant-messaging dept.
An anonymous reader writes "A group of scientists has for the first time sent a message using a beam of neutrinos – nearly massless particles that travel at almost the speed of light. The message was sent through 240 meters of stone and said simply, 'Neutrino.' From the article: 'Many have theorized about the possible uses of neutrinos in communication because of one particularly valuable property: they can penetrate almost anything they encounter. If this technology could be applied to submarines, for instance, then they could conceivably communicate over long distances through water, which is difficult, if not impossible, with present technology. And if we wanted to communicate with something in outer space that was on the far side of a moon or a planet, our message could travel straight through without impediment.'"
Science

Jawless Creature Had the World's Sharpest Teeth 53

Posted by samzenpus from the his-bite-is-worse-than-his-bark dept.
ananyo writes "An extinct primitive marine vertebrate had the sharpest dental structures ever known — with tips just one-twentieth of the width of a human hair, but able to apply pressures that could compete easily with those from human jaws. The razor-sharp teeth belonged to conodonts, jawless vertebrates that evolved some 500 million years ago in the Precambrian eon and went extinct during the Triassic period, around 200 million years ago. The creatures roamed the planet for longer than any other vertebrate so far–– and despite their lack of jaws, they were the first creatures to evolve teeth (abstract)."
Businesses

Reversing the Loss of Science and Engineering Careers 375

Posted by samzenpus from the hiring-for-the-future dept.
walterbyrd writes "In response to the alleged shortages of qualified American engineers and technology professionals, numerous initiatives have been launched to boost interest in STEM (Science, Technology, Engineering and Math) careers and to strengthen STEM education in the United States. Unfortunately, these programs have not proven successful, and many blame the laziness of modern students, the ineptitude of their teachers, poor parenting or, when there are no other excuses remaining, they may even jump to moral decay as a causative agent. However, the failure of STEM is because the very policies that created the shortages continue unabated. This is not a uniquely American problem. The best way to increase interest in STEM degrees is by making certain that STEM careers are actually viable."
China

Possible New Human Species Discovered In China 234

Posted by samzenpus from the family-tree-gets-another-branch dept.
BayaWeaver writes "These are exciting times in anthropology. Recent analysis of fossils first discovered in China in 1979 indicate that a human-like species may have co-existed with modern humans as late as 11,500 years ago. This presumably new species has been nicknamed Red Deer Cave people because of their apparent taste for the extinct giant red deer. Other species recently discovered include: the 'hobbits' on the Indonesian island of Flores which are also thought to have been around until 12,000 years ago and the Denisovans discovered in 2010 that co-existed with modern humans in Siberia about 30,000 years ago."
Printer

The Laser Unprinter 168

Posted by samzenpus from the does-it-work-on-tattoos? dept.
MrSeb writes "You've heard of laser printers — and now a team of researchers from the University of Cambridge in England has created a laser unprinter that can remove ink without damaging the paper. Despite both methods using lasers, their (un)printing approaches are fundamentally very different. In a laser printer, a laser is used to give individual 'pixels' on a piece of paper a positive charge (a separate heat source is used to fuse toner). In the laser unprinter, picosecond pulses of green laser light are used to vaporize the toner, or ablate in scientific terms. The primary goal of unprinting is to cut down on the carbon footprint of the paper and printing industries. Manufacturing paper is incredibly messy business, with a huge carbon footprint. Recycling paper is a good step in the right direction, but it still pales in comparison to unprinting. In a worst-case scenario, The University of Cambridge unprinting method has half the carbon emissions of recycling; best-case, unprinting is almost 20 times as efficient."
It's funny. Laugh.

10 Ways To Celebrate Pi Day 196

Posted by samzenpus from the irrational-holiday dept.
alphadogg writes "There are holidays, and then there are holidays for nerds, and March 14 (3.14) is one of those. Based on the mathematical constant number that represents the ratio between the circumference and the diameter of a circle, Pi Day has grown to become somewhat of a day to celebrate for mathematicians and techies. Here are 10 things to do on the big day."
Space

The Blistering Hot Exoplanet Where It Snows 68

Posted by Soulskill from the blame-the-space-alien-groundhogs dept.
cylonlover writes "Today's weather on HD 189733b: It will be hazy with high wispy clouds. The wind will be steady from the east at speeds approaching 6,000 miles per hour (9,656 km/h). Daytime temperatures will average a balmy 800C (1,472F), while the equatorial hot spot at 30 degrees longitude is expected to top 900C (1,652F). But, there is a high chance of silicate snow showers, with accumulations expected except in the vicinity of the hot spot. Just how much can astronomical observations tell us about exoplanets — those worlds orbiting other stars in our galaxy? With patience and cunning, more than you might think."
Space

Nomad Planets: Stepping Stones To Interstellar Space? 244

Posted by Soulskill from the cold-dark-rocks-make-good-stepping-stones dept.
An anonymous reader writes "Ian O'Neill suggests in an opinion piece at Al Jazeera that brown dwarves and nomad planets (planets not orbiting any star) could be a much needed stepping stone on our way to foreign stars. Quoting the article: 'In February, a fascinating paper was published in the Monthly Notices of the Royal Astronomical Society detailing calculations on how many "nomad planets" the Milky Way must contain after estimating our galaxy's mass from how much gravity it exerts on surrounding space. Scientists from the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) had uncovered something surprising — there are likely many more planets in the Milky Way than stars. ... Louis Strigari and his Kavli team calculated that there must be 100,000 planets for every star in the Milky Way (PDF). That's a lot of planets! But how can this be? Every star can't have tens of thousands of planets ranging from Pluto-sized to Jupiter-sized. This planetary "excess" actually suggests the existence of planets that were born without a star — nomad planets. ... we need all the help we can get if we are to venture to another star, so these ultracool brown dwarfs could become much-needed "stepping stones" for future starships to refuel on their light-years of journey time. There may be the possibility that these sub-stellar objects may even become more desirable targets for interstellar travellers. After all, there may be dozens of these invisible objects between here and Proxima just waiting to be uncovered by the sophisticated infrared telescopes of the future; they'd certainly make for more accessible scientific curiosities.'"
Power

Cheap Solar Panels Made With An Ion Cannon 395

Posted by Soulskill from the fresh-from-the-daystrom-institute dept.
MrSeb writes "Twin Creeks, a solar power startup that emerged from hiding today, has developed a way of creating photovoltaic cells that are half the price of today's cheapest cells, and thus within reach of challenging the fossil fuel hegemony. As it stands, almost every solar panel is made by slicing a 200-micrometer-thick (0.2mm) wafer from a block of crystalline silicon. You then add some electrodes, cover it in protective glass, and leave it in a sunny area to generate electricity through the photovoltaic effect. There are two problems with this approach: Much in the same way that sawdust is produced when you slice wood, almost half of the silicon block is wasted when it's cut into 200-micrometer slices; and second, the panels would still function just as well if they were thinner than 200 micrometers, but silicon is brittle and prone to cracking if it's too thin. Using a hydrogen ion particle accelerator, Twin Creeks has managed to create very thin (20-micrometer), flexible photovoltaic cells that can be produced for just 40 cents per watt; around half the cost of conventional solar cells, and a price point that encroaches on standard, mostly-hydrocarbon-derived grid power."
Medicine

Indian Gov't Uses Special Powers To Slash Cancer Drug Price By 97% 556

Posted by Soulskill from the opening-a-can-of-worms dept.
suraj.sun sends this quote from the Times of India: "In a landmark decision that could set a precedent on how life-saving drugs under patents can be made affordable, the government has allowed a domestic company, Natco Pharma, to manufacture a copycat version of Bayer's patented anti-cancer drug, Nexavar, bringing down its price by 97%. In the first-ever case of compulsory licensing approval, the Indian Patent Office on Monday cleared the application of Hyderabad's Natco Pharma to sell generic drug Nexavar, used for renal and liver cancer, at Rs 8,880 (around $175) for a 120-capsule pack for a month's therapy. Bayer offers it for over Rs 2.8 lakh (roughly $5,500) per 120 capsules. The order provides hope for patients who cannot afford these drugs. The approval paves the way for the launch of Natco's drug in the market, a company official told TOI, adding that it will pay a 6% royalty on net sales every quarter to Bayer."
Medicine

Lego Mindstorms Used To Make Artificial Bones Screenshot-sm 42

Posted by samzenpus from the lego-leg dept.
An anonymous reader writes "Scientists at Cambridge University have used Lego Mindstorms robots to create an artificial bone-like substance. The toy robots proved to be much easier to set up and vastly more economical than more high-tech solutions. Their research is featured in a video for the 2012 Google Science Fair."
Australia

Single-Ion Clock 100 Times More Accurate Than Atomic Clock 169

Posted by timothy from the so-now-you're-really-late dept.
New submitter labnet writes with this excerpt from news.com.au: "University of New South Wales School of Physics professor Victor Flambaum has found a method of timekeeping nearly 100 times more accurate than the best atomic clocks. By using the orbit of a neutron around an atomic nucleus he says the system stays accurate to within 1/20th of a second over billions of years. Although perhaps not for daily use, the technology could prove valuable in science experiments where chronological accuracy is paramount, Prof Flambaum said."
Math

Using Graph Theory To Predict NCAA Tournament Outcomes 91

Posted by timothy from the more-interesting-than-what-is-at-heart-portrayed dept.
New submitter SocratesJedi writes "Like many technically-minded people, I don't have a lot of time to keep up with sports. Nevertheless, trying to predict the outcome of the NCAA men's basketball tournament is a fun activity to share with friends, family and colleagues. This year, I abandoned my usual strategy of quasi-randomly choosing teams and instead modeled the win-loss history of all Division I teams as a weighted network. The network included information from 5242 games played during the 2011-2012 season. From this, teams came be ranked using tools from graph theory and those rankings can be used to predict tournament outcomes. Without any a priori information, this method accurately identified all the #1 seeds in the top 5 best teams. It also predicts that at least one underdog, Belmont (#14 seed), will reach the Elite Eight. Although the ultimate test will be how well it predicts tournament outcomes, initial benchmarks suggest 70-80% accuracy would not be unreasonable."
Biotech

Gamers Outdo Computers At DNA Sequence Alignments 61

Posted by Soulskill from the must-not-be-using-watson dept.
ananyo writes "In another victory for crowdsourcing, gamers playing Phylo have beaten a state-of-the-art program at aligning regions of 521 disease-associated genes form different species. The 'multiple sequence alignment problem' refers to the difficulty of aligning roughly similar sequences of DNA in genes common to many species. DNA sequences that are conserved across species may play an important role in the ultimate function of that particular gene. But with thousands of genomes likely to be sequenced in the next few years, sequence alignment will only become more difficult in future. Researchers now report that players of Phylo have produced roughly 350,000 solutions to various multiple sequence alignment problems, beating the accuracy of alignments from a program in roughly 70% of the sequences they manipulated."
Biotech

Solving Climate Change By Bioengineering Humans? 363

Posted by Soulskill from the just-lazy-enough-to-work dept.
derekmead writes "Forget CFLs, hybrid cars, and organic jeans. Buying our way out of climate change — even if it's green consumption — won't get us far. A new paper (PDF), published in Ethics, Policy, and the Environment by NYU bioethics professor S. Matthew Liao, poses an answer: engineer humans to use less. The general plan laid out by Liao is straightforward, ranging from using pharmacological behavior modification to create an aversion to meat in people, to using gene therapy to create smaller, less resource-intensive children. The philosophical and ethical questions, on the other hand, are absurdly complicated. The Atlantic also has a great interview with Liao, in which he talks about gene therapy and making humans hate the taste of meat."
Graphics

Algorithm Brings Speedier, Safer CT Scans 58

Posted by Soulskill from the it's-never-lupus dept.
kenekaplan writes "Standard CT scanners can generate images of patient's body in less than five minutes today, but the radiation dose can be equal to about 70 chest X-rays. Lower-powered CT scans can be used in non-emergency situations, but it can take more than four days to produce those images. Intel and GE created an algorithm that speeds up a computer's ability to process the low radiation dose scans by 100x, from 100 hours per image to one hour."
Math

Pi Day Is Coming — But Tau Day Is Better 241

Posted by Soulskill from the circular-logic dept.
PerlJedi writes "A few months ago, a Tweet from Randal Schwartz pointed me to a YouTube video about 'Triangle Parties' made by Vi Hart. My nerdiness and my love of math made it my new favorite thing on YouTube. Now, with Pi Day coming up later this week, I thought it would be an appropriate time to point people to another of her YouTube videos: Pi is Wrong. The website she mentions at the end, Tauday, has a full explanation of the benefits of using Tau rather than Pi. Quoting: 'The Tau Manifesto is dedicated to one of the most important numbers in mathematics, perhaps the most important: the circle constant relating the circumference of a circle to its linear dimension. For millennia, the circle has been considered the most perfect of shapes, and the circle constant captures the geometry of the circle in a single number. Of course, the traditional choice for the circle constant is pi — but, as mathematician Bob Palais notes in his delightful article "Pi Is Wrong!", pi is wrong. It's time to set things right.'"
NASA

Lawsuit Claims NASA Specialist Was Fired Over Intelligent Design Belief 743

Posted by samzenpus from the in-the-beginning dept.
New submitter period3 writes "The latest mission of NASA's Jet Propulsion Laboratory is defending itself in a workplace lawsuit filed by a former computer specialist. The man claims he was demoted and then let go for promoting his views on intelligent design, the belief that a higher power must have had a hand in creation because life is too complex to have developed through evolution alone."

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