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NASA

NASA Makes 3-D Printed Wrench Model Available 94

Posted by samzenpus
from the print-your-own dept.
First time accepted submitter smsiebe writes You can now download a piece of history by getting the designs for the wrench that NASA recently emailed to astronauts on the ISS. The wrench took four hours to complete and was the first "uplink tool" printed in space. You can check out a number of models and images on NASA's 3D Resources site.
Education

The World of YouTube Bubble Sort Algorithm Dancing 64

Posted by timothy
from the right-under-our-very-noses dept.
theodp writes In addition to The Ghost of Steve Jobs, The Codecracker, a remix of 'The Nutcracker' performed by Silicon Valley's all-girl Castilleja School during Computer Science Education Week earlier this month featured a Bubble Sort Dance. Bubble Sort dancing, it turns out, is more popular than one might imagine. Search YouTube, for example, and you'll find students from the University of Rochester to Osmania University dancing to sort algorithms. Are you a fan of Hungarian folk-dancing? Well there's a very professionally-done Bubble Sort Dance for you! Indeed, well-meaning CS teachers are pushing kids to Bubble Sort Dance to hits like Beauty and a Beat, Roar, Gentleman, Heartbeat, Under the Sea, as well as other music.
Science

300 Million Year Old Fossil Fish Likely Had Color Vision 37

Posted by samzenpus
from the all-the-better-to-see-it-with dept.
westlake writes Nature is reporting the discovery of mineralized rods and cones in a 300-million-year-old fossil fish found in Kansas. The soft tissues of the eye and brain decay rapidly after death, within 64 days and 11 days, respectively, and are almost never preserved in the fossil record — making this the first discovery of fossil rods and cones in general and the first evidence for color vision in a fossilized vertebrate eye.
Science

Scientists Say the Future Looks Bleak For Our Bones 110

Posted by samzenpus
from the no-bones-about-it dept.
HughPickens.com writes Nicholas St. Fluer reports at The Atlantic that according to researchers, our convenient, sedentary way of life is making our bones weak foretelling a future with increasing fractures, breaks, and osteoporosis. For thousands of years, hunter-gatherers trekked on strenuous ventures for food with dense skeletons supporting their movements and a new study pinpoints the origin of weaker bones at the beginning of the Holocene epoch roughly 12,000 years ago, when humans began adopting agriculture. "Modern human skeletons have shifted quite recently towards lighter—more fragile, if you like—bodies. It started when we adopted agriculture. Our diets changed. Our levels of activity changed," says Habiba Chirchir. A second study attributes joint bone weakness to different levels of physical activity in ancient human societies, also related to hunting versus farming.

The team scanned circular cross-sections of seven bones in the upper and lower limb joints in chimpanzees, Bornean orangutans and baboons. They also scanned the same bones in modern and early modern humans as well as Neanderthals, Paranthropus robustus, Australopithecus africanus and other Australopithecines. They then measured the amount of white bone in the scans against the total area to find the trabecular bone density. Crunching the numbers confirmed their visual suspicions. Modern humans had 50 to 75 percent less dense trabecular bone than chimpanzees, and some hominins had bones that were twice as dense compared to those in modern humans. Both studies have implications for modern human health and the importance of physical activity to bone strength. "The lightly-built skeleton of modern humans has a direct and important impact on bone strength and stiffness," says Tim Ryan. That's because lightness can translate to weakness—more broken bones and a higher incidence of osteoporosis and age-related bone loss. The researchers warn that with the deskbound lives that many people lead today, our bones may have become even more brittle than ever before. "We are not challenging our bones with enough loading," says Colin Shaw, "predisposing us to have weaker bones so that, as we age, situations arise where bones are breaking when, previously, they would not have."
Space

NuSTAR Takes Beautiful X-ray Image of Sol 43

Posted by Soulskill
from the welcome-to-my-desktop dept.
New submitter swell points out a new image release from NASA, the first taken of the Sun by its Nuclear Spectroscopic Telescope Array (NuSTAR). It's the most sensitive shot ever taken in the high-energy X-ray range of the spectrum. Direct image link. While the sun is too bright for other telescopes such as NASA's Chandra X-ray Observatory, NuSTAR can safely look at it without the risk of damaging its detectors. The sun is not as bright in the higher-energy X-rays detected by NuSTAR, a factor that depends on the temperature of the sun's atmosphere. ... With NuSTAR's high-energy views, it has the potential to capture hypothesized nanoflares -- smaller versions of the sun's giant flares that erupt with charged particles and high-energy radiation. Nanoflares, should they exist, may explain why the sun's outer atmosphere, called the corona, is sizzling hot, a mystery called the "coronal heating problem." The corona is, on average, 1.8 million degrees Fahrenheit (1 million degrees Celsius), while the surface of the sun is relatively cooler at 10,800 Fahrenheit (6,000 degrees Celsius). It is like a flame coming out of an ice cube. Nanoflares, in combination with flares, may be sources of the intense heat.
Portables

Study: Light-Emitting Screens Before Bedtime Disrupt Sleep 172

Posted by Soulskill
from the why-you're-tired-all-the-time dept.
jfruh writes: Tablets and e-readers are more convenient in many ways than paper books, but many people have complained that the physical experience of using them isn't as good. And now we have some specific quantification of this fact: a study has shown that people who read text on a tablet before bed don't sleep as well as those who read a traditional book (abstract).
Space

ESA Carries Out Asteroid Impact Drill 69

Posted by Soulskill
from the hide-behind-the-moon dept.
Zothecula writes: If there were any dinosaurs around, they could tell you that an asteroid impact can ruin your whole day. But if we did learn that one was actually going to strike the Earth in a month, what would the authorities do? To find out, the European Space Agency held its first ever mock asteroid drill to work on solutions and identify problems in how to handle such a catastrophe.
Science

Does Journal Peer Review Miss Best and Brightest? 136

Posted by Soulskill
from the selecting-for-mediocrity dept.
sciencehabit writes: A study published today indicates that the scientific peer review system does a reasonable job of predicting the eventual interest in most papers, but it may fail when it comes to identifying really game-changing research. Papers that were accepted outright by one of the three elite journals tended to garner more citations than papers that were rejected and then published elsewhere (abstract). And papers that were rejected went on to receive fewer citations than papers that were approved by an editor. But there is a serious chink in the armor: All 14 of the most highly cited papers in the study were rejected by the three elite journals, and 12 of those were bounced before they could reach peer review. The finding suggests that unconventional research that falls outside the established lines of thought may be more prone to rejection from top journals.
Medicine

Meet the Doctor Trying To Use the Blood of Ebola Survivors To Create a Cure 33

Posted by samzenpus
from the it's-in-the-blood dept.
An anonymous reader points out this article about Dr. James Crowe, who is trying to use the blood of Ebola survivors to develop a cure. "For months, Vanderbilt University researcher Dr. James Crowe has been desperately seeking access to the blood of U.S. Ebola survivors, hoping to extract the proteins that helped them overcome the deadly virus for use in new, potent drugs. His efforts finally paid off in mid-November with a donation from Dr. Rick Sacra, a University of Massachusetts physician who contracted Ebola while working in Liberia. The donation puts Crowe at the forefront of a new model for fighting the virus, now responsible for the worst known outbreak in West Africa that has killed nearly 7,000 people. Crowe is working with privately-held drugmaker Mapp Biopharmaceutical Inc, which he said will manufacture the antibodies for further testing under a National Institutes of Health grant. Mapp is currently testing its own drug ZMapp, a cocktail of three antibodies that has shown promise in treating a handful of Ebola patients."
Biotech

How Venture Capitalist Peter Thiel Plans To Live 120 Years 439

Posted by samzenpus
from the going-for-a-dip-in-the-lazarus-pit dept.
HughPickens.com writes Bloomberg News reports that venture capitalist and paypal co-founder Peter Thiel has a plan to reach 120 years of age. His secret — taking human growth hormone (HGH) every day, a special Paleo diet, and a cure for cancer within ten years. "[HGH] helps maintain muscle mass, so you're much less likely to get bone injuries, arthritis," says Thiel. "There's always a worry that it increases your cancer risk but — I'm hopeful that we'll get cancer cured in the next decade." Human growth hormone also known as somatotropin or somatropin, is a peptide hormone that stimulates growth, cell reproduction and regeneration in humans and other animals. Thiel says he also follows a Paleo diet, doesn't eat sugar, drinks red wine and runs regularly. The Paleolithic diet, also popularly referred to as the caveman diet, Stone Age diet and hunter-gatherer diet, is a modern nutritional diet designed to emulate, insofar as possible using modern foods, the diet of wild plants and animals eaten by humans during the Paleolithic era. Thiel's Founders Fund is also investing in a number of biotechnology companies to extend human lifespans, including Stem CentRx Inc., which uses stem cell technology for cancer therapy. With the 70 plus years remaining him and inspired by "Atlas Shrugged," Thiel also plans to launch a floating sovereign nation in international waters, freeing him and like-minded thinkers to live by libertarian ideals with no welfare, looser building codes, no minimum wage, and few restrictions on weapons.
Beer

Problem Solver Beer Tells How Much To Drink To Boost Your Creativity 73

Posted by samzenpus
from the I-know-I-could-do-this-if-I-could-just-have-a-beer dept.
mrspoonsi writes When you've been stuck on a problem or that creative spark just won't come, the chances are you've turned to a cup of coffee to get things moving. A quick java infusion can certainly help, but studies also suggest that alcohol can also have a positive impact on your creative cognition. University of Illinois Professor Jennifer Wiley determined that a person's "creative peak" comes when their blood alcohol level reaches 0.075, lowering their ability to overthink during a task. Medical Daily reports that marketing agency CP+B Copenhagen and Danish brewery Rocket Brewing wanted to help drinkers reach their imaginative prime, so they decided to create their own beer to do just that. The result is The Problem Solver. It's a 7.1 percent craft IPA that its makers say offers a "refined bitterness with a refreshing finish." To ensure you reach the optimum creative level, the bottle includes a scale, which determines how much of the beer you need to drink based on your body weight. The agency does offer a word of warning though: "Enjoying the right amount will enhance your creative thinking. Drinking more will probably do exactly the opposite."
Earth

Hot Springs At Yellowstone Changed Their Color Due To Tourist Activity 48

Posted by samzenpus
from the new-colors dept.
An anonymous reader writes Researchers say that the different colors of the hot springs in Yellowstone National Park are caused by human contamination. From the article: "Researchers at Montana State University and Brandenburg University of Applied Sciences in Germany have created a simple mathematical model based on optical measurements that explains the stunning colors of Yellowstone National Park's hot springs and can visually recreate how they appeared years ago, before decades of tourists contaminated the pools with make-a-wish coins and other detritus. If Yellowstone National Park is a geothermal wonderland, Grand Prismatic Spring and its neighbors are the ebullient envoys, steaming in front of the camera and gracing the Internet with their ethereal beauty. While the basic physical phenomena that render these colorful delights have long been scientifically understood—they arise because of a complicated interplay of underwater vents and lawns of bacteria—no mathematical model existed that showed empirically how the physical and chemical variables of a pool relate to their optical factors and coalesce in the unique, stunning fashion that they do."
Education

Putting Time Out In Time Out: The Science of Discipline 323

Posted by samzenpus
from the how-can-you-have-any-pudding-if-you-don't-eat-your-meat? dept.
An anonymous reader points out this story at The Atlantic about new research and approaches in the science of discipline. "At the end of a gravel road in the Chippewa National Forest of northern Minnesota, a group of camp counselors have gathered to hear psychotherapist Tina Bryson speak about neuroscience, mentorship, and camping. She is in Minnesota by invitation of the camp. Chippewa is at the front of a movement to bring brain science to bear on the camping industry; she keynoted this past year's American Camping Association annual conference. As Bryson speaks to the counselors gathered for training, she emphasizes one core message: At the heart of effective discipline is curiosity—curiosity on the part of the counselors to genuinely understand and respect what the campers are experiencing while away from home....She is part of a progressive new group of scientists, doctors, and psychologists whose goal is ambitious, if not outright audacious: They want to redefine "discipline" in order to change our culture. They want to rewrite—or perhaps more precisely said, rewire—how we interact with kids, and they want us to understand that our decisions about parenting affect not only our children's minds, but ours as well. So, we're going to need to toss out our old discipline mainstays. Say goodbye to timeouts. So long spanking and other ritualized whacks. And cry-it-out sleep routines? Mercifully, they too can be a thing of the past. And yet, we can still help our children mature and grow. In fact, people like Bryson think we'll do it better. If we are going to take seriously what science tells us about how we form relationships and how our mind develops, we will need to construct new strategies for parenting, and when we do, says this new group of researchers, we just may change the world."
NASA

Can Rep. John Culberson Save NASA's Space Exploration Program? 156

Posted by samzenpus
from the getting-the-money dept.
MarkWhittington writes The Houston Chronicle's Eric Berger has published the seventh in his series of articles about the American space program and what ails it. The piece focuses on Rep. John Culberson, R-Texas, who has two fascinating aspects. The first is that he is taking over the House Appropriations subcommittee that oversees NASA funding. The second is that he has a keen appreciation for the benefits of space exploration for its own sake and not just for his Houston area district.

Culberson wants to save NASA and the space program from his fellow politicians and return it to its true glory. He favors sending American astronauts back to the moon and a robotic space probe to Jupiter's moon Europa. He would like to enact budget reforms that take funding decisions away from the Office of Management and Budget and gives them solely to Congress. He favors a steady increase in NASA funding to pay for a proper program of space exploration. To say the least, he has his work cut out for him.
ISS

NASA 'Emails' a Socket Wrench To the ISS 152

Posted by Soulskill
from the hardware-as-a-service dept.
HughPickens.com writes: "Sarah LeTrent reports at CNN that NASA just emailed the design of a socket wrench to astronauts so that they could print it out in the orbit. The ratcheting socket wrench was the first "uplink tool" printed in space, according to Grant Lowery, marketing and communications manager for Made In Space, which built the printer in partnership with NASA. The tool was designed on the ground, emailed to the space station and then manufactured where it took four hours to print out the finished product. The space agency hopes to one day use the technology to make parts for broken equipment in space and long-term missions would benefit greatly from onboard manufacturing capabilities. "I remember when the tip broke off a tool during a mission," recalls NASA astronaut TJ Creamer, who flew aboard the space station during Expedition 22/23 from December 2009 to June 2010. "I had to wait for the next shuttle to come up to bring me a new one. Now, rather than wait for a resupply ship to bring me a new tool, in the future, I could just print it."
Science

New Record Set For Deepest Dwelling Fish 33

Posted by Soulskill
from the going-for-the-low-score dept.
mpicpp tips news that oceanographers have discovered a creature that sets the record for the most deeply dwelling fish on Earth. It was found in the Mariana Trench, some 8,145 meters below the surface. The 30-day voyage took place from the Schmidt Ocean Institute's research vessel, Falkor, and is the most comprehensive survey of world's deepest place ever undertaken. The Hadal Ecosystem Studies (Hades) team deployed unmanned landers more than 90 times to depths that ranged between 5,000m and 10,600m. They studied both steep walls of the undersea canyon. ... Dr. Jamieson said: "We think it is a snailfish, but it's so weird-looking; it's up in the air in terms of what it is. "It is unbelievably fragile, and when it swims, it looks like it has wet tissue paper floating behind it. And it has a weird snout — it looks like a cartoon dog snout."
Science

Birds Fled Area Before Tornadoes Appeared 99

Posted by Soulskill
from the didn't-tweet-about-it dept.
SternisheFan sends a report from scientists who were tracking a group of birds — golden-winged warblers — in the Appalachian mountains. Just a few days after the birds completed their seasonal migration, they did something odd — they picked up and moved again. Shortly thereafter, a series of storms swept through that area of the U.S., which led to a destructive tornado outbreak (abstract). After the storm had blown over, the team recaptured five of the warblers and removed the geolocators. These are tiny devices weighing about half a gram, which measure light levels. Based on the timing and length of the days they record, these gadgets allow scientists to calculate and track the approximate location of migratory birds. In this case, all five indicated that the birds had taken unprecedented evasive action, beginning one to two days ahead of the storm's arrival. "The warblers in our study flew at least 1,500km (932 miles) in total," Dr. Streby said. They escaped just south of the tornadoes' path — and then went straight home again. By 2 May, all five were back in their nesting area."
Earth

Massive Volcanic Eruptions Accompanied Dinosaur Extinction 78

Posted by Soulskill
from the some-say-dinosaurs-can't-swim-in-magma dept.
schwit1 writes: A careful updating of the geological timeline has shown that massive volcanic eruptions aligned with the extinction event that wiped out the non-avian dinosaurs 66 million years ago (abstract). "A primeval volcanic range in western India known as the Deccan Traps, which were once three times larger than France, began its main phase of eruptions roughly 250,000 years before the Cretaceous-Paleogene, or K-Pg, extinction event, the researchers report in the journal Science. For the next 750,000 years, the volcanoes unleashed more than 1.1 million cubic kilometers (264,000 cubic miles) of lava. The main phase of eruptions comprised about 80-90 percent of the total volume of the Deccan Traps' lava flow and followed a substantially weaker first phase that began about 1 million years earlier.

The results support the idea that the Deccan Traps played a role in the K-Pg extinction, and challenge the dominant theory that a meteorite impact near present-day Chicxulub, Mexico, was the sole cause of the extinction. The researchers suggest that the Deccan Traps eruptions and the Chicxulub impact need to be considered together when studying and modeling the K-Pg extinction event."
Medicine

How a 3D Printer Let a Dog Run For the First Time 26

Posted by timothy
from the dogs-have-been-running-since-forever dept.
Nerval's Lobster writes Ever since 3-D printing began to enter the mainstream, people have discussed the technology's potential for building prosthetic arms and legs for human beings. But what about doing the same for dogs? In one of those videos that ends up circulated endlessly on the Internet, a dog named Derby, born with a congenital deformity that deprived him of front paws, is outfitted with a pair of 3-D-printed prosthetics. With those "legs" in place, the dog can run for the first time, at a pretty good clip. Both the prosthetics and the video were produced by 3D Systems, which builds 3-D printers, and it seems likely that other 3-D-printing companies will explore the possibility of printing off parts for pets. And while the idea of a cyborg pooch is heartwarming, it will be interesting to see how 3D printers will continue to advance the realm of human prosthetics, which have become increasingly sophisticated over the past decade.

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