Open Source

Hackers In Space: Designing A Ground Station 95

An anonymous reader writes with some new information on the happenings of the Hacker Space Program. From the article: "At the Chaos Communication Camp 2011 Jens Ohlig, Lars Weiler, and Nick Farr proposed a daunting task: to land a hacker on the Moon by 2034. The plan calls for three separate phases: Establishing an open, free, and globally accessible satellite communication network, put a human into orbit, and land on the Moon. Interestingly enough, there is already considerable work being done on the second phase of this plan by the Copenhagen Suborbitals, and Google's own Lunar X Prize is trying to spur development of robotic missions to the Moon. But what about the first phase? Answering the call is the 'Shackspace,' a hackerspace from Stuttgart, Germany, who've begun work on an ambitious project they're calling the 'Hackerspace Global Grid.'"

LIDAR Map Shows Height of Earth's Forests 47

Hkibtimes writes about a recently released map of the Earth's forests. From the article: "A group of scientists from NASA and the University of Maryland have created a unique map that shows the heights of the Earth's forests. The map ... has been created using 2.5 million carefully screened and globally distributed laser pulse measurements sent from space."

Russian Scientists Revive Plant From 30,000-Year-Old Seeds 162

An anonymous reader writes "It was an Ice Age squirrel's treasure chamber, a burrow containing fruit and seeds that had been stuck in the Siberian permafrost for over 30,000 years. From the fruit tissues, a team of Russian scientists managed to resurrect an entire plant in a pioneering experiment that paves the way for the revival of other species. The Silene stenophylla is the oldest plant ever to be regenerated, the researchers said, and it is fertile, producing white flowers and viable seeds. ... 'The squirrels dug the frozen ground to build their burrows, which are about the size of a soccer ball, putting in hay first and then animal fur for a perfect storage chamber,' said Stanislav Gubin, one of the authors of the study, who spent years rummaging through the area for squirrel burrows. 'It's a natural cryobank.'"

Carbohydrate-Based Synthesis To Replace Petroleum Derived Hydrocarbons? 166

someWebGeek writes "From PhysOrg's 'Taking biofuel from forest to highway,' University of British Columbia biofuel expert Jack Saddler says, 'we will become less dependent on fossil fuels and will become more dependent on fuels made from the sugars and chemicals found in plants.' Nothing too new there; the idea of biofuels eventually taking over from petroleum distillates has been around for ages. However, Saddler contends further that 'Similar to an oil refinery that processes crude oil to make thousands of supplementary products like plastics, dyes, paints, etc., the biorefinery would use leftover agricultural and forest material to make many of the same products, but from a sustainable and renewable resource.' I remember my organic chem instructor back in '81 telling us that eventually the textbooks would have to be rewritten. There would be no presumption of fractional distillation of thousands of basic compounds from petroleum, and the teaching emphasis would shift to synthesis from simple hydrocarbons. He noted that we'd all miss 'the good, ole days' when synthetic fibers, plastics, etc. were cheap... or even an economically viable option. I can live without rayon, but, dang, I'm gonna miss polyvinyl chloride!"

Commercial, USB-Powered DNA Sequencer Coming This Year 95

Zothecula writes "Oxford Nanopore has been developing a disruptive nanopore-based technology for sequencing DNA, RNA, proteins, and other long-chain molecules since its birth in 2005. The company has just announced that within the next 6-9 months it will bring to market a fast, portable, and disposable protein sequencer that will democratize sequencing by eliminating large capital costs associated with equipment required to enter the field."

Ask Slashdot: What Would Real Space Combat Look Like? 892

c0mpliant writes "Two friends and I were up until the wee hours of the morning over the weekend debating what real space combat would look like. I've spent some time looking it up online, and there doesn't seem to be any general consensus. So, I thought I'd ask a community of peers what they think. Given our current technology and potential near-future technology, what would a future space battlefield look like? Would capital ships rule the day? Would there be equivalents of cruisers, fighters and bombers, or would it be a mix of them all?"

Test-Tube Burgers Coming Soon 276

ananyo writes "A burger made entirely from lab-grown meat is expected to be unveiled by October this year. But costing in excess of $250,000, it's not going to be flying off supermarket shelves quite yet. The lab meat is produced using adult stem cells, which are then grown on scaffolds in cell-culture media. Because such lab-assembled muscle is weak, it has to be 'bulked up' by exposing to electric shocks. The researchers, based in the Netherlands, had already grown goldfish fillets in 2002, then fried them in breadcrumbs before giving them to an 'odor and sight' panel to assess whether they seemed edible." While I'm not overly enthusiastic about this Dutch attempt at growing burgers, it is a huge step-up from the Japanese effort.

Study Says E-prescription Systems Would Save At Least 50k Lives a Year 134

First time accepted submitter shirleylopez1177 writes "Approximately 50,000–100,000 people die in America because of preventable adverse events (PAE). These PAEs or medical errors are among the leading causes of death, ranking higher than breast cancer, AIDS and motor vehicle accidents in terms of the number of fatalities caused. As a response to the problem of medication errors, e-prescription systems have emerged. Few studies have looked at how e-prescribing systems compare to traditional systems in their potential to reduce medical errors. However, a study from Australia published two weeks ago in PLoS Medicine examined the impact of e-prescription systems on medication errors in the inpatient setting and demonstrated that these systems are indeed effective."

Physicists Create a Working Transistor From a Single Atom 127

stupendou writes "Australian and American physicists have built a working transistor from a single phosphorus atom embedded in a silicon crystal. The group of physicists, based at the University of New South Wales and Purdue University, said they had laid the groundwork for a futuristic quantum computer that might one day function in a nanoscale world and would be orders of magnitude smaller and quicker than today's silicon-based machines."

Space Team Reunites For John Glenn's Friendship 7 82

Hugh Pickens writes "An era begins to pass as only about 25 percent of today's American population were at least 5 years old when John Glenn climbed into the Friendship 7 Mercury capsule on Feb. 20, 1962 and became the first American to orbit the earth. This weekend John Glenn joined the proud, surviving veterans of NASA's Project Mercury to celebrate the 50th anniversary of his historic orbital flight as Glenn and Scott Carpenter, the two surviving members of the original astronaut corps, thanked the retired Mercury workers, now in their 70s and 80s, who gathered with their spouses at the Kennedy Space Center to swap stories, pose for pictures and take a bow. 'There are a lot more bald heads and gray heads in that group than others, but those are the people who did lay the foundation,' said 90-year-old Glenn. Norm Beckel Jr., a retired engineer who also was in the blockhouse that historic morning, said almost all the workers back then were in their 20s and fresh out of college. The managers were in their 30s. 'I don't know if I'd trust a 20-year-old today.' Bob Schepp, 77, was reminded by the old launch equipment of how rudimentary everything was back then. 'I wonder how we ever managed to launch anything in space with that kind of stuff,' said Schepp. 'Everything is so digital now. But we were pioneers, and we made it all work.'"

Successful Test Flight and Landing for Xombie Rocket Lander and GENIE 65

An anonymous reader sends word that Masten Space Systems' Xombie rocket has successfully demonstrated vertical takeoff and landing for NASA's Flight Opportunities Program. It was guided autonomously by the GENIE system from Draper Laboratory. "The rocket rose 164 feet, moved laterally 164 feet, and then landed on another pad after a 67-second flight. The flight represents the first step in developing a test bed capability that will allow for landing demonstrations that start at much higher altitudes-several miles above the ground." This navigation technology is laying the groundwork for future exploration of planets, moons, and asteroids.
The Internet

Avoiding Red Lights By Booking Ahead 299

RedEaredSlider writes "Peter Stone, associate professor of computer science at the University of Texas at Austin, has presented an idea at the AAAS meeting today for managing intersections: a computer in a car calls ahead to the nearest intersection it is headed towards, and says it will arrive at a given time. The intersection checks to see if anyone else is arriving then, and if the slot is open, it tells the car to proceed. If it isn't, it tells the car that the car remains responsible for slowing down or stopping. He says that even with only a few connected cars, the system still works, even if the benefits are still only to those who have the connected vehicles."

Deadly H5N1 Flu Studies To Stay Secret... For Now 111

Edsj writes "A spokesman for the World Health Organization announced that an agreement had been reached, after a debate, to keep details secret of the controversial work about the highly pathogenic H5N1 avian flu virus until deeper risk analyses have been carried out. The scientists who made the study, led by Ron Fouchier, still want to release the full paper at some future date for public viewing, but for the time being, the NSABB got what it wanted." The moratorium will be extended "probably for several months."

How Companies Learn Your Secrets 354

Hugh Pickens writes "For decades, Target has collected vast amounts of data on every person who regularly walks into one of its stores. Now the NY Times Magazine reports on how companies like Target identify those unique moments in consumers' lives when their shopping habits become particularly flexible and the right advertisement or coupon can cause them to begin spending in new ways. Among life events, none are more important than the arrival of a baby, and new parents are a retailer's holy grail. In 2002, marketers at Target asked statisticians to answer an odd question: 'If we wanted to figure out if a customer is pregnant, even if she didn't want us to know, can you do that?' Specifically, the marketers said they wanted to send specially designed ads to women in their second trimester, which is when most expectant mothers begin buying all sorts of new things, like prenatal vitamins and maternity clothing. 'We knew that if we could identify them in their second trimester, there's a good chance we could capture them for years,' says statistician Andrew Pole. 'As soon as we get them buying diapers from us, they're going to start buying everything else too.' As Pole's computers crawled through the data, he was able to identify about 25 products that, when analyzed together, allowed him to assign each shopper a 'pregnancy prediction' score and he soon had a list of tens of thousands of women who were most likely pregnant. About a year after Pole created his pregnancy-prediction model, a man walked into a Target outside Minneapolis and demanded to see the manager. He was clutching coupons that had been sent to his daughter, and he was angry. 'My daughter got this in the mail!' he said. 'She's still in high school, and you're sending her coupons for baby clothes and cribs? Are you trying to encourage her to get pregnant?' The manager apologized and then called a few days later to apologize again but the father was somewhat abashed. 'It turns out there's been some activities in my house I haven't been completely aware of. She's due in August. I owe you an apology.'"
The Military

DARPA Researches Avatar Surrogates 159

kgeiger writes "Feeling blue? DARPA is funding a program to investigate the feasibility of battlefield cyborg-surrogates: 'In its 2012 budget, DARPA has decided to pour US $7 million into the 'Avatar Project,' whose goal is the following: "develop interfaces and algorithms to enable a soldier to effectively partner with a semi-autonomous bi-pedal machine and allow it to act as the soldier's surrogate."' Power and bandwidth constraints aside, what could go wrong? Chinese hackers swooping in and commandeering one's army?"

DNA Nanorobot Halts Growth of Cancer Cells 74

ananyo writes "DNA origami, a technique for making structures from DNA, has been used to build devices that can seek out and potentially destroy cancer cells. The nanorobots use a similar system to cells in the immune system to engage with receptors on the outside of cells. The barrel-shaped devices, each about 35 nanometers in diameter, contain 12 sites on the inside for attaching payload molecules and two positions on the outside for attaching aptamers, short nucleotide strands with special sequences for recognizing molecules on the target cell (abstract). The aptamers act as clasps: once both have found their target, they spring open the device to release the payload. The researchers tested six combinations of aptamer locks, each of which were designed to target different types of cancer cells in culture. Those designed to hit a leukemia cell could pick that cell out of a mixture of cell types, then release their payload — in this case, an antibody — to stop the cells from growing. The researchers designed the structure of the nanorobots using open-source software, called Cadnano."

Pharmacy On-a-chip Dispenses Drugs Automatically 74

An anonymous reader writes "The idea is simple — load up a microchip with a whole pharmacy of drugs that are dispensed as needed automatically. The devil has been in the details, since mistakes could kill the patient if, say, a leak developed dumping dangerous cocktails into the bloodstream. This MIT sponsored company, however, claims to have perfected wireless control of a pharmacy-on-a-chip and has just completed the clinical trials to prove it. The test microchip has just 20 doses of a single drug, but their new prototype will house thousands of pin-prick sized drug reservoirs, after which they will seek FDA approval. The elderly (who have complicated drug regime) and soldiers could both benefit from these smart pharmacies-on-a-chip, since drugs can be dispensed even if the patient is unconscious."

Optimizing Your Caffeine Intake With an App 134

MrSeb writes "Two doctors at Penn State University have developed Caffeine Zone, a free iOS app that tells you the perfect time to take a coffee break to maintain an optimal amount of caffeine in your blood — and, perhaps more importantly, it also tells you when to stop drinking tea and coffee, so that caffeine doesn't interrupt your sleep. By reading through lots of peer-reviewed studies, doctors Frank E. Ritter and Kuo-Chuan Yeh found that a caffeine level of between 200 and 400mg in your bloodstream provides optimal mental alertness, and that you should be below 100mg when you try to sleep. Caffeine Zone plots your caffeination level after you consume caffeine, and warns you if that big afternoon coffee will keep you up at night. It also lets you change the 'optimal' and 'sleep' values if you're particularly resistant or weak to caffeine."

US Seismologist Testifies Against Scientists In Quake-Prediction Case 189

ananyo writes with this snippet from Nature (for which this earlier Nature article is also background): "'The courthouse in L'Aquila, Italy, yesterday hosted a highly anticipated hearing in the trial of six seismologists and one government official indicted for manslaughter over their reassurances to the public ahead of a deadly earthquake in 2009. .... During the hearing, the former head of the Italian Department of Civil Protection turned from key witness into defendant, and a seismologist from California criticized Italy's top earthquake experts.' Lalliana Mualchin, former chief seismologist for the Department of Transportation in California, criticized the Italian analysis, which he says was based on a poor model. If the court agrees with Mualchin, the defendants could face up to 12 years in jail."

Aderall Or Nothing: Anatomy of the Great Amphetamine Drought 611

pigrabbitbear writes "To prevent hoarding of materials and their potential for theft and illicit use, the Drug Enforcement Agency sets quotas for the chemical precursors to drugs like Adderall. The DEA projects the need for amphetamine salts, then produces and distributes the materials to pharmaceutical companies so that they can produce their drugs. But with the number of prescriptions for Adderall jumping 13 percent in the past year, pharmaceutical companies claim that the quotas are no longer sufficient for supplying Americans with their Adderall. The DEA contends that their quotas do, in fact, meet demands, and that any shortages arise from pharmaceutical companies selectively producing only certain, typically name-brand and more expensive versions of ADHD medications."

Slashdot Top Deals