Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Slashdot Asks: Cheap But Reasonable Telescopes for Kids?

timothy posted about a month ago | from the will-take-credit-for-the-nobel-prize dept.

Space 187

I am interested in a telescope for the use of some elementary and middle school aged relatives. Older and younger siblings, and parents, would no doubt get some scope time, too. Telescopes certainly come in a range of prices, from cheap to out of this world, and I am purely a duffer myself. But I enjoy looking at the moon and stars with magnification, and think they would, too. What I'm trying to find might be phrased like this: "the lowest priced scope that's reasonably robust, reasonably accurate, and reasonably usable for kids" -- meaning absolute precision is less important than a focus that is easy to set and doesn't drift. Simplicity in design beats tiny, ill-labeled parts or an incomprehensible manual, even if the complicated one might be slightly better when perfectly tuned. I'd be pleased if some of these kids decide to take up astronomy as a hobby, but don't have any strong expectation that will happen -- besides, if they really get into it, the research for a better one would be another fun project. That said, while I'm price sensitive, I'm not looking *only* at the price tag so much as seeking insight about the cluster of perceived sweet spots when it come to price / performance / personality. By "personality" I mean whether it's friendly, well documented, whether it comes intelligently packaged, whether it's a crapshoot as to whether a scope with the same model name will arrive in good shape, etc -- looking at online reviews, it seems many low-end scopes have a huge variance in reviews. What scopes would you would consider giving to an intelligent 3rd or 4th grader? As a starting point, Google has helped me find some interesting guides that list some scopes that sound reasonable, including a few under or near $100. (Here's one such set of suggestions.) What would you advise buying, from that list or otherwise? (There are some ideas that sound pretty good in this similar question from 2000, but I figure the state of the art has moved on.) I'm more interested in avoiding awful junk than I am expecting treasure: getting reasonable views of the moon is a good start, and getting at least some blurry rings around Saturn would be nice, too. Simply because they are so cheap, I'd like to know if anyone has impressions (worth it? pure junk?) of the Celestron FirstScope models, which are awfully tempting for under $50.

Spot ET's Waste Heat For Chance To Find Alien Life

timothy posted about a month ago | from the especially-if-they've-got-grow-lights dept.

Space 80

mdsolar passes along this selection from New Scientist describing a (comparatively) low-tech means of scanning the skies for extraterrestrial civilizations: The best-known technique used to search for tech-savvy aliens is eavesdropping on their communications with each other. But this approach assumes ET is chatty in channels we can hear. The new approach, dubbed G-HAT for Glimpsing Heat from Alien Technologies, makes no assumptions about what alien civilisations may be like.

"This approach is very different," says Franck Marchis at the SETI Institute in California, who was not involved in the project. "I like it because it doesn't put any constraints on the origin of the civilisation or their willingness to communicate." Instead, it utilises the laws of thermodynamics. All machines and living things give off heat, and that heat is visible as infrared radiation. The G-HAT team combed through the catalogue of images generated by the Wide-field Infrared Survey Explorer, or WISE, which released an infrared map of the entire sky in 2012. A galaxy should emit about 10 per cent of its light in the mid-infrared range, says team leader Jason Wright at Pennsylvania State University. If it gives off much more, it could be being warmed by vast networks of alien technology – though it could also be a sign of more prosaic processes, such as rapid star formation or an actively feeding black hole at the galaxy's centre.

Eruption Of Iceland's Bardarbunga Raises Travel Alert to Red

timothy posted about a month ago | from the melting-iceland dept.

Earth 38

The eruption of the Bardarbunga volcano in central Iceland, which appeared a strong possibility after a series of earthquakes, is currently underway, beneath the ice of the Dyngjujokull glacier. The BBC reports that Iceland has raised its air travel alert to red, its higest level, but that for now all of Iceland's airports remain open. CNN notes that "the underground activity did not immediately result in changes to volcanic activity on the surface ... Because of a pressure from the glacier cap it is uncertain whether the eruption will stay sub-glacial or not, Iceland 2 TV said."

Oregon Sues Oracle For "Abysmal" Healthcare Website

timothy posted about a month ago | from the finest-consultants-in-the-land dept.

Oracle 212

SpzToid (869795) writes The state of Oregon sued Oracle America Inc. and six of its top executives Friday, accusing the software giant of fraud for failing to deliver a working website for the Affordable Care Act program. The 126-page lawsuit claims Oracle has committed fraud, lies, and "a pattern of activity that has cost the State and Cover Oregon hundreds of millions of dollars". "Not only were Oracle's claims lies, Oracle's work was abysmal", the lawsuit said. Oregon paid Oracle about $240.3 million for a system that never worked, the suit said. "Today's lawsuit clearly explains how egregiously Oracle has disserved Oregonians and our state agencies", said Oregon Atty. Gen. Ellen Rosenblum in a written statement. "Over the course of our investigation, it became abundantly clear that Oracle repeatedly lied and defrauded the state. Through this legal action, we intend to make our state whole and make sure taxpayers aren't left holding the bag."

Oregon's suit alleges that Oracle, the largest tech contractor working on the website, falsely convinced officials to buy "hundreds of millions of dollars of Oracle products and services that failed to perform as promised." It is seeking $200 million in damages. Oracle issued a statement saying the suit "is a desperate attempt to deflect blame from Cover Oregon and the governor for their failures to manage a complex IT project. The complaint is a fictional account of the Oregon Healthcare Project."

It's Dumb To Tell Kids They're Smart

timothy posted about a month ago | from the converse-is-also-true dept.

Education 243

theodp writes Over at Khan Academy, Salman Khan explains Why I'm Cautious About Telling My Son He's Smart. "Recently," writes Khan, "I put into practice research I had been reading about for the past few years: I decided to praise my son not when he succeeded at things he was already good at, but when he persevered with things that he found difficult. I stressed to him that by struggling, your brain grows. Between the deep body of research on the field of learning mindsets and this personal experience with my son, I am more convinced than ever that mindsets toward learning could matter more than anything else we teach." According to Dr. Carol Dweck, who Khan cites, the secret to raising smart kids is not telling kids that they are. A focus on effort — not on intelligence or ability — says Dweck, is key to success in school and in life.

2 Galileo Satellites Launched To Wrong Orbit

timothy posted about a month ago | from the conspiracy-theory dept.

Space 140

As reported by the BBC, two satellites meant to form part of the EU's Galileo global positioning network have been launched into a wrong, lower orbit, and it is unclear whether they can be salvaged. has a more detailed account of the launch, which says [D]espite the Arianespace webcast noting no issue with the launch, it was later admitted the satellites were lofted into the wrong orbit. “Following the announcement made by Arianespace on the anomalies of the orbit injection of the Galileo satellites, the teams of industries and agencies involved in the early operations of the satellites are investigating the potential implications on the mission,” noted a short statement, many hours after the event. It is unlikely the satellites can be eased into their correct orbit, even with a large extension to their transit time. However, ESA are not classing the satellites as lost at this time. “Both satellites have been acquired and are safely controlled and operated from ESOC, ESA’s Operations Centre in Darmstadt, Germany,” the Agency added. Over the course of the next "year or so," an additional 24 satellites are slated to complete the Galileo constellation, to be launched by a mixed slate of Ariane and Soyuz rockets.

"MythBusters" Drops Kari Byron, Grant Imahara, Tory Belleci

timothy posted about a month ago | from the small-team dept.

Television 364

rbrandis (735555) writes In a video announcement Thursday on Discovery Channel, MythBusters hosts Adam Savage and Jamie Hyneman revealed that longtime co-hosts and fan favorites Kari Byron, Grant Imahara, and Tory Belleci are no longer on the show. "This next season we're going back to our origins with just Adam and me," Hyneman said in the video, which explained that the change took hold as of the season's last episode on August 21. (Our interview with the original-and-remaining Mythbusters is one of my favorites.)

A Better Way To Make Mind-Controlled Prosthetic Limbs

Soulskill posted about a month ago | from the resistance-is-futile dept.

Biotech 28

the_newsbeagle writes: To make a brain-machine interface, you need a way to capture neurons' electric signals. The most precise and most invasive way uses implants that are stuck in the gray matter. The least precise and least invasive way uses EEG sensors stuck to the scalp. But researchers at Johns Hopkins University say there's a third way that gets the best of both worlds, which is not too invasive and fairly precise. They use ECoG systems, in which a mesh of electrodes is placed under the skull, draped over the surface of the cortex.

They're testing their systems on epilepsy patients, who have these ECoG systems inserted anyway while they're waiting for surgery (the electrodes record the source of their seizures). The researchers are capturing these patients' movement commands from their brains, and using them to control robotic limbs. Someday such a system could be used by amputees to control their prosthetic limbs.

A Movie of Triton Made From Voyager 2's Fly-by 25 Years Ago

Soulskill posted about a month ago | from the pretty-pictures dept.

Media 34

schwit1 writes: Using restored images taken by Voyager 2 when it flew past Neptune's moon Triton 25 years ago, scientists have produced a new map and flyby movie of the moon. "The new Triton map has a resolution of 1,970 feet (600 meters) per pixel. The colors have been enhanced to bring out contrast but are a close approximation to Triton's natural colors. Voyager's "eyes" saw in colors slightly different from human eyes, and this map was produced using orange, green and blue filter images. ... Although Triton is a moon of a planet and Pluto is a dwarf planet, Triton serves as a preview of sorts for the upcoming Pluto encounter. Although both bodies originated in the outer solar system, Triton was captured by Neptune and has undergone a radically different thermal history than Pluto. Tidal heating has likely melted the interior of Triton, producing the volcanoes, fractures and other geological features that Voyager saw on that bitterly cold, icy surface. Pluto is unlikely to be a copy of Triton, but some of the same types of features may be present." Dr. Paul Schenk provides provides further information on his blog, and the movie can be viewed here.

Researchers Made a Fake Social Network To Infiltrate China's Internet Censors

Soulskill posted about a month ago | from the inside-job dept.

Censorship 49

Jason Koebler writes: In order to get inside China's notorious internet filter, Harvard researcher Gary King created his own fake social network to gain access to the programs used to censor content, so he could reverse-engineer the system. "From inside China, we created our own social media website, purchased a URL, rented server space, contracted with one of the most popular software platforms in China used to create these sites, submitted, automatically reviewed, posted, and censored our own submissions," King wrote in a study published in Science. "We had complete access to the software; we were even able to get their recommendations on how to conduct censorship on our own site in compliance with government standards."

Scientists Confirm Life Under Antarctic Ice

samzenpus posted about 1 month ago | from the cold-living dept.

Science 46

MikeChino writes A new paper by a group of researchers from Montana State University confirms that life can survive under antarctic ice. Researchers led by John Priscu drilled down into the West Antarctic Ice Sheet and pulled up organisms called Archaea. These organisms survive by converting methane into energy, enabling them to survive where there is no wind or sunlight, buried deep under the ice.

The Star That Exploded At the Dawn of Time

samzenpus posted about 1 month ago | from the in-the-beginning dept.

Space 55

sciencehabit writes To probe the dawn of time, astronomers usually peer far away; but now they've made a notable discovery close to home. An ancient star a mere thousand light-years from Earth bears chemical elements that may have been forged by the death of a star that was both extremely massive and one of the first to arise after the big bang. If confirmed, the finding means that some of the universe's first stars were so massive they died in exceptionally violent explosions that altered the growth of early galaxies.

Cause of Global Warming 'Hiatus' Found Deep In the Atlantic

samzenpus posted about 1 month ago | from the biggest-heatsink dept.

Earth 465

vinces99 writes with news about a study that may account for a slowdown in air temperature rises. Following rapid warming in the late 20th century, this century has so far seen surprisingly little increase in the average temperature at the Earth's surface. More than a dozen theories have now been proposed for the so-called global warming hiatus, ranging from air pollution to volcanoes to sunspots. New research from the University of Washington shows the heat absent from the surface is plunging deep in the north and south Atlantic Ocean, and is part of a naturally occurring cycle. The study is published in Science. Subsurface ocean warming explains why global average air temperatures have flatlined since 1999, despite greenhouse gases trapping more solar heat at the Earth's surface. "Every week there's a new explanation of the hiatus," said corresponding author Ka-Kit Tung, a UW professor of applied mathematics and adjunct faculty member in atmospheric sciences. "Many of the earlier papers had necessarily focused on symptoms at the surface of the Earth, where we see many different and related phenomena. We looked at observations in the ocean to try to find the underlying cause." What they found is that a slow-moving current in the Atlantic, which carries heat between the two poles, sped up earlier this century to draw heat down almost a mile (1,500 meters). Most previous studies focused on shorter-term variability or particles that could block incoming sunlight, but they could not explain the massive amount of heat missing for more than a decade.

Scientists Developing Remote-Control Cyborg Moths

samzenpus posted about 1 month ago | from the stay-out-of-the-light dept.

Technology 27

Zothecula writes We've been hearing a lot about the development of tiny flying sensor-equipped robots, that could be sent into areas such as disaster sites to seek out survivors or survey the damage. However, why go to the trouble of designing those robots from scratch, when there are already ready-made insects that are about the right size? That's the thinking behind research being conducted at North Carolina State University, which is aimed at converting moths into "biobots".

NASA's Space Launch System Searches For a Mission

Soulskill posted about 1 month ago | from the attack-titan-for-its-oil dept.

Space 53

schwit1 writes: Managers of NASA's Space Launch System (SLS) are searching for a mission that they can propose and convince Congress to fund. "Once SLS is into the 2020s, the launch rate should see the rocket launching at least once per year, ramping up to a projected three times per year for the eventual Mars missions. However, the latter won’t be until the 2030s. With no missions manifested past the EM-2 flight, the undesirable question of just how 'slow' a launch rate would be viable for SLS and her workforce has now been asked." Meanwhile, two more Russian rocket engines were delivered yesterday, the first time that's happened since a Russian official threatened to cut off the supply. Another shipment of three engines is expected later this year. In Europe, Arianespace and the European Space Agency signed a contract today for the Ariane 5 rocket to launch 12 more of Europe’s Galileo GPS satellites on three launches. This situation really reminds me of the U.S. launch market in the 1990s, when Boeing and Lockheed Martin decided that, rather than compete with Russia and ESA for the launch market, they instead decided to rely entirely on U.S. government contracts, since those contracts didn’t really demand that they reduce their costs significantly to compete.

New Research Suggests Cancer May Be an Intrinsic Property of Cells

Soulskill posted about 1 month ago | from the kill-all-the-cells!-oh-wait dept.

Medicine 185

cranky_chemist sends this report from NPR: "Cancer simply may be here to stay. Researchers at Kiel University, the Catholic University of Croatia and other institutions discovered that hydra — tiny, coral-like polyps that emerged hundreds of millions of years ago — form tumors similar to those found in humans. Which suggests that our cells' ability to develop cancer is "an intrinsic property" that has evolved at least since then — way, way, way before we rallied our forces to try to tackle it, said Thomas Bosch, an evolutionary biologist at Kiel University who led the study, published in Nature Communications in June (abstract) To get ahead of cancer, he said, "you have to interfere with fundamental pathways. It's a web of interactions," he said. "It's very difficult to do." That's why cancer "will probably never be completely eradicated."

Metamaterial Superconductor Hints At New Era of High Temperature Superconductors

Soulskill posted about 1 month ago | from the resistance-is-futile-at-extremely-low-temperatures dept.

Science 39

KentuckyFC writes: Superconductors allow current to flow with zero resistance when cooled below some critical temperature. They are the crucial ingredients in everything from high-power magnets and MRI machines to highly sensitive magnetometers and magnetic levitation devices. But one big problem is that superconductors work only at very low temperatures — the highest is around 150 kelvin (-120 degrees centigrade). So scientists would dearly love to find ways of raising this critical temperature. Now a group of physicists say they've found a promising approach: to build metamaterial superconductors that steer electrons in the same way as other metamaterials steer light to create invisibility cloaks. The inspiration for the work comes from the observation that some high temperature superconductors consist of repeated layers of conducting and dielectric structures. So the team mixed tin — a superconductor at 3.7 kelvin — with the dielectric barium titanate and found that it raised the critical temperature by 0.15 kelvin. That's the first demonstration that superconductors can be thought of as metamaterials. With this proof of principle under their belts, the next step is to look for bigger gains at higher temperatures.

Experimental Drug Stops Ebola-like Infection

Soulskill posted about 1 month ago | from the side-effects-may-include-spontaneous-combustion dept.

Medicine 53

sciencehabit writes: An experimental treatment against an Ebola-related virus can protect monkeys even when given up to 3 days after infection, the point at which they show the first signs of disease. The virus, known as Marburg, causes severe hemorrhagic fever—vomiting, diarrhea, and internal bleeding. In one outbreak, it killed 90% of people it infected. There are no proven treatments or vaccines against it. The new results raise hopes that the treatment might be useful for human patients even if they don't receive it until well after infection. The company that makes the compound, Tekmira, based in Burnaby, Canada, has started a human safety trial of a related drug to treat Ebola virus disease, and researchers hope that it, too, might offer protection even after a patient has started to feel ill. In other Ebola news, the two American aid workers who were infected with the virus while in Liberia have now recovered and been released from the hospital.

The First Particle Physics Evidence of Physics Beyond the Standard Model?

samzenpus posted about a month ago | from the new-way-of-thinking dept.

Science 97

StartsWithABang writes It's the holy grail of modern particle physics: discovering the first smoking-gun, direct evidence for physics beyond the Standard Model. Sure, there are unanswered questions and unsolved puzzles, ranging from dark matter to the hierarchy problem to the strong-CP problem, but there's no experimental result clubbing us over the head that can't be explained with standard particle physics. That is, the physics of the Standard Model in the framework of quantum field theory. Or is there? Take a look at the evidence from the muon's magnetic moment, and see what might be the future of physics.

National Science Foundation Awards $20 Million For Cloud Computing Experiments

samzenpus posted about a month ago | from the paying-the-way-to-the-future dept.

The Almighty Buck 25

aarondubrow writes The National Science Foundation today announced two $10 million projects to create cloud computing testbeds — to be called "Chameleon" and "CloudLab" — that will enable the academic research community to experiment with novel cloud architectures and pursue new, architecturally-enabled applications of cloud computing. While most of the original concepts for cloud computing came from the academic research community, as clouds grew in popularity, industry drove much of the design of their architecture. Today's awards complement industry's efforts and enable academic researchers to advance cloud computing architectures that can support a new generation of innovative applications, including real-time and safety-critical applications like those used in medical devices, power grids, and transportation systems.

China Pulls Plug On Genetically Modified Rice and Corn

samzenpus posted about a month ago | from the not-on-my-plate dept.

Biotech 152

sciencehabit writes China's Ministry of Agriculture has decided not to renew biosafety certificates that allowed research groups to grow genetically modified (GM) rice and corn. The permits, to grow two varieties of GM rice and one transgenic corn strain, expired on 17 August. The reasoning behind the move is not clear, and it has raised questions about the future of related research in China.

Study: Seals Infected Early Americans With Tuberculosis

samzenpus posted about a month ago | from the seal-of-consumption dept.

Medicine 74

mdsolar writes that a study suggests that tuberculosis first appeared in the New World less than 6,000 years ago and it was brought here by seals. After a remarkable analysis of bacterial DNA from 1,000-year-old mummies, scientists have proposed a new hypothesis for how tuberculosis arose and spread around the world. The disease originated less than 6,000 years ago in Africa, they say, and took a surprising route to reach the New World: it was carried across the Atlantic by seals. The new study, published Wednesday in the journal Nature, has already provoked strong reactions from other scientists. "This is a landmark paper that challenges our previous ideas about the origins of tuberculosis," said Terry Brown, a professor of biomolecular archaeology at the University of Manchester. "At the moment, I'm still in the astonished stage over this."

Do Readers Absorb Less On Kindles Than On Paper? Not Necessarily

Soulskill posted about a month ago | from the kindles-absorb-less-spilled-beverage-than-paper-books dept.

Books 105

An anonymous reader writes eBooks are great and wonderful, but as The Guardian reports, they might not be as good for readers as paper books. Results from a new study show that test subjects who read a story on a Kindle had trouble recalling the proper order of the plot events. Out of 50 test subjects, half read a 28-page story on the Kindle, while half read the same story on paper. The Kindle group scored about the same on comprehension as the control group, but when they were asked to put the plot points in the proper order, the Kindle group was about twice as likely to get it wrong.

So, is this bad news for ebooks? Have we reached the limits of their usefulness? Not necessarily. While there is evidence that enhanced ebooks don't enhance education, an older study from 2012 showed that students who study with an e-textbook on an ebook reader actually scored as well or higher on tests than a control group who did not. While that doesn't prove the newer research wrong, it does suggest that further study is required.
What has your experience been with both recall and enjoyment when reading ebooks?

How To Read a Microbiome Study Like a Scientist

Unknown Lamer posted about a month ago | from the dang-scientists-ruining-headlines dept.

Science 53

bmahersciwriter (2955569) writes Scientific reports have increasingly linked the bacteria in your gut to health and maladies, often making wild-sounding claims. Did you hear about the mice who were given fecal transplants from skinny humans and totally got skinny! Well, some of the more gut-busting results might not be as solid as they seem. Epidemiologist Bill Hanage offers five critical questions to ask when confronted by the latest microbiome research.

Wheel Damage Adding Up Quickly For Mars Rover Curiosity

Soulskill posted about a month ago | from the wheels-on-the-rover-go-round-and-round dept.

Mars 162

An anonymous reader writes: The folks in charge of the Mars rover Curiosity have been trying to solve an increasingly urgent problem: what to do about unexpected wheel damage. The team knew from the start that wear and tear on the wheels would slowly accumulate, but they've been surprised at how quickly the wheels have degraded over the past year. Emily Lakdawalla at the Planetary Society blog has posted a detailed report on the team's conclusions as to what's causing the damage and how they can mitigate it going forward. Quoting: "The tears result from fatigue. You know how if you bend a metal paper clip back and forth repeatedly, it eventually snaps? Well, when the wheels are driving over a very hard rock surface — one with no sand — the thin skin of the wheels repeatedly bends. The wheels were designed to bend quite a lot, and return to their original shape. But the repeated bending and straightening is fatiguing the skin, causing it to fracture in a brittle way. The bending doesn't happen (or doesn't happen as much) if the ground gives way under the rover's weight, as it does if it's got the slightest coating of sand on top of rock. It only happens when the ground is utterly impervious to the rover's weight — hard bedrock. The stresses from metal fatigue are highest near the tips of the chevron features, and indeed a lot of tears seem to initiate close to the chevron features."

If Fusion Is the Answer, We Need To Do It Quickly

Soulskill posted about a month ago | from the taming-a-small-star dept.

Power 305

Lasrick writes: Yale's Jason Parisi makes a compelling case for fusion power, and explains why fusion is cleaner, safer, and doesn't provide opportunities for nuclear smuggling and proliferation. The only downside will be the transition period, when there are both fission and fusion plants available and the small amount of "booster" elements (tritium and deuterium) found in fusion power could provide would-be proliferators what they need to boost the yield of fission bombs: "The period during which both fission and fusion plants coexist could be dangerous, however. Just a few grams of deuterium and tritium are needed to increase the yield of a fission bomb, in a process known as 'boosting.'" Details about current research into fusion power and an exploration of relative costs make fusion power seem like the answer to a civilization trying to get away from fossil fuels.

Scientists Find Traces of Sea Plankton On ISS Surface

Soulskill posted about a month ago | from the space-stations-like-to-swim dept.

ISS 117

schwit1 sends this report from the ITAR-TASS News Agency: An experiment of taking samples from illuminators and the ISS surface has brought unique results, as scientists had found traces of sea plankton there, the chief of an orbital mission on Russia's ISS segment told reporters. Results of the scope of scientific experiments which had been conducted for a quite long time were summed up in the previous year, confirming that some organisms can live on the surface of the International Space Station for years amid factors of a space flight, such as zero gravity, temperature conditions and hard cosmic radiation. Several surveys proved that these organisms can even develop. He noted that it was not quite clear how these microscopic particles could have appeared on the surface of the space station.

Modular Hive Homes Win Mars Base Design Competition

Soulskill posted about a month ago | from the i'll-order-a-dozen dept.

Mars 61

In June, we discussed news that JPL and MakerBot were teaming up to host a competition for designing a futuristic Mars base. The competition is now over, and the top three designs have been chosen. First place went to Noah Hornberger, who designed a base with hexagonal rooms and shielding made of depleted uranium. Second place went to a martian pyramid with an aquaponics system on top, mirror-based solar collectors, central water storage, and compartmentalized living spaces. The third place award went to Chris Starr for his Mars Acropolis, which was styled upon the ancient Greek Acropolis. It has a water tower at the top of the structure, a series of greenhouses at the bottom, and living quarters in between. The full list of 227 entries is browse-able on Thingiverse.

Why Chinese Hackers Would Want US Hospital Patient Data

timothy posted about a month ago | from the makes-great-gift-wrapping-too dept.

China 171

itwbennett (1594911) writes In a follow-up to yesterday's story about the Chinese hackers who stole hospital data of 4.5 million patients, IDG News Service's Martyn Williams set out to learn why the data, which didn't include credit card information, was so valuable. The answer is depressingly simple: people without health insurance can potentially get treatment by using medical data of one of the hacking victims. John Halamka, chief information officer of the Beth Israel Deaconess Medical Center and chairman of the New England Healthcare Exchange Network, said a medical record can be worth between $50 and $250 to the right customer — many times more than the amount typically paid for a credit card number, or the cents paid for a user name and password. "If I am one of the 50 million Americans who are uninsured ... and I need a million-dollar heart transplant, for $250 I can get a complete medical record including insurance company details," he said.

The Royal Society Proposes First Framework For Climate Engineering Experiments

samzenpus posted about a month ago | from the we-can-make-it-better dept.

Earth 174

Jason Koebler writes The Royal Society of London, the world's oldest scientific publisher, has unveiled a proposal to create the first serious framework for future geoengineering experiments. It's a sign that what are still considered drastic and risky measures to combat climate change are drifting further into the purview of mainstream science. The scientific body has issued a call to create "an open and transparent review process that ensures such experiments have the necessary social license to operate."

Ebola Quarantine Center In Liberia Looted

samzenpus posted about a month ago | from the getting-worse dept.

Medicine 359

An anonymous reader writes The BBC and other outlets are reporting that a major quarantine center for patients who have been infected with the Ebola virus in Liberia has been looted and ransacked. Reports vary on the motive of the attack, but officials have confirmed that the Ebola patients are missing and that the quarantine center's medical supplies have been stolen. Officials say that the looters are highly likely to contract the virus themselves and worsen the epidemic further, as the WHO counts 1000+ lives claimed by the virus total."

Fighting Invasive Fish With Forks and Knives

samzenpus posted about a month ago | from the don't-forget-the-tartar dept.

Earth 180

An anonymous reader writes NPR commentator Bonny Wolf has a unique solution to battle the threat of invasive fish species in our waterways. She proposes we fight them with a knife, fork, and a few lemon wedges. From the article: "Take the northern snakehead, which has made its way into tributaries of the Chesapeake Bay. It competes with native species for food, and then eats the native species, not to mention the odd frog or bird, with its mouthful of sharp teeth. It's been called "Fishzilla." It breeds fast, has no natural predators and can grow to be 4 feet long. The northern snakehead hangs out in grassy shallows, making it hard to catch. But a couple of years ago, Maryland started promoting the snakehead as an eating fish. Its harvest has increased from zero to 5,000 pounds a year."

No, a Huge Asteroid Is Not "Set To Wipe Out Life On Earth In 2880"

samzenpus posted about a month ago | from the it's-the-end-of-the-world-or-not dept.

Space 123

An anonymous reader writes "Phil Plait wants you to know that asteroid 1950 DA is very, very unlikely to hit the Earth in 2880, despite what you may have read. He writes: "As it happens, 1950 DA is what's called a 'near-Earth asteroid', because its orbit sometimes brings it relatively close to Earth. I'll note that I mean close on a cosmic scale. Looking over the next few decades, a typical pass is tens of millions of kilometers away, with some as close as five million kilometers — which is still more than ten times farther away than the Moon! Still, that's in our neighborhood, which is one of the reasons this asteroid is studied so well. It gets close enough that we can get a decent look at it when it passes. Can it impact the Earth? Yes, kindof. Right now, the orbit of the asteroid doesn't bring it close enough to hit us. But there are forces acting on asteroids over time that subtly change their orbits; one of them is called the YORP effect, a weak force that arises due to the way the asteroid spins and radiates away heat. The infrared photons it emits when it's warm carry away a teeny tiny bit of momentum, and they act pretty much like an incredibly low-thrust rocket. Over many years, this can change both the rotation of the asteroid as well as the shape of its orbit."

Scientists Record Quantum Behavior of Electrons Via Laser Lights

samzenpus posted about a month ago | from the spinning-lasers dept.

Shark 33

An anonymous reader writes in with news about a breakthrough in recording quantum behavior in electrons. A group of researchers has said that they have come up with a new method to record and control electron behavior at the quantum mechanical level. The research team, headed by the scientists at the University of Chicago, used laser lights in ultra-fast pulses for the experiment. The laser light controlled the quantum state of electrons. It contained inside nanoscale defects in a diamond. The researchers observed changes in that electron over a time period. They focused on the quantum mechanical property of electrons known as spin. Lead author David Awschalom, a molecular engineering professor at a university in Chicago, said, "These defects have attracted great interest of the scientists over the past decade. They provide a test-bed system for developing semiconductor quantum bits as well as nanoscale sensors."

Researchers Discover New Plant "Language"

samzenpus posted about a month ago | from the what-does-the-ficus-say? dept.

Science 70

An anonymous reader writes A Virginia Tech scientist has discovered a potentially new form of plant communication, that allows them to share genetic information with one another. Jim Westwood, a professor of plant pathology, physiology, and weed science, found evidence of this new communication mode by investigating the relationship between dodder, a parasitic plant, and the flowering plant Arabidopsis and tomato plants to which it attaches and sucks out nutrients with an appendage called a haustorium. Westwood examined the plants' mRNA, the molecule in cells that instructs organisms how to code certain proteins that are key to functioning. MRNA helps to regulate plant development and can control when plants eventually flowers. He found that the parasitic and the host plants were exchanging thousands of mRNA molecules between each other, thus creating a conversation.

Figuring Out Where To Live Using Math

Soulskill posted about a month ago | from the sanity-check-when-the-math-suggests-detroit dept.

Math 214

An anonymous reader writes: Dave Munson was thinking about moving, and had a couple broad requirements for a new home: it must be affordable, and its neighborhood must be walkable. Price is easy to chart, but how do you compare the walkability of hundreds of cities? Simple: use math. A website called Walk Score provides rough walkability ratings, but doesn't tell you much about affordability. Munson downloaded the data that went into a city's Walk Score, weighted the relevant variables, and mapped the top results. Then he looked for overlap with the map of areas in his price range. He says, "Capitol Hill, Seattle led the pack. To be honest, I was expecting something a smaller, affordable Midwest town or something, but it the highest scoring areas were usually just outside of major downtowns. Other top areas included Cambridge and Somerville outside of Boston, and the South End in Boston; Columbia Heights, Washington, DC; The Mission District, Lower Haight, and Russian Hill, San Francisco; Midtown, Atlanta; Greenwood, Dyker Heights, Kensington, and Sheepshead Bay, Brooklyn; Graduate Hospital in Philadelphia, where we used to live; Lake View, Chicago; and Five Points, Denver."

Fukushima's Biological Legacy

Soulskill posted about a month ago | from the please-be-mothra-please-be-mothra dept.

Japan 116

An anonymous reader sends this report from Eurekalert: Scientists began gathering biological information only a few months after the disastrous 2011 meltdown of the Fukushima power plant in Japan. Results of these studies are now beginning to reveal serious biological effects of the Fukushima radiation on non-human organisms ranging from plants to butterflies to birds. A series of articles summarizing these studies has been published in the Journal of Heredity describing impacts ranging from population declines to genetic damage (abstract 1, abstract 2, abstract 3, abstract 4). Most importantly, these studies supply a baseline for future research on the effects of ionizing radiation exposure to the environment. Common to all of the published studies is the hypothesis that chronic (low-dose) exposure to ionizing radiation results in genetic damage and increased mutation rates in reproductive and non-reproductive cells. Meanwhile, efforts to restart Japan's nuclear power program are dead in the water.

Why the Universe Didn't Become a Black Hole

Soulskill posted about a month ago | from the would-have-been-a-bit-dull dept.

Space 109

StartsWithABang writes: With some 10^90 particles in the observable Universe, even stretched across 92 billion light-years today, the Universe is precariously close to recollapsing. How, then, is it possible that back in the early stages after the Big Bang, when all this matter-and-energy was concentrated within a region of space no bigger than our current Solar System, the Universe didn't collapse down to a black hole? Not only do we have the explanation, but we learn that even if the Universe did recollapse, we wouldn't get a black hole at all!

Groundwork Laid For Superfast Broadband Over Copper

Soulskill posted about a month ago | from the now-your-plumbing-can-double-as-ethernet-wiring dept.

Networking 93

itwbennett writes: Telecom equipment vendor Adtran has developed a technology that will make it easier for operators to roll out broadband speeds close to 500Mbps over copper lines. Adtran's FDV (Frequency Division Vectoring), enhances the capabilities of two technologies — VDSL2 with vectoring and — by enabling them to better coexist over a single subscriber line, the company said. VDSL2 with vectoring, which improves speeds by reducing noise and can deliver up to 150Mbps, is currently being rolled out by operators, while, which is capable of 500Mbps, is still under development, with the first deployments coming in mid-2015. FDV will make it easier for operators to roll out once it's ready and expand where it can be used, according to Adtran. Meanwhile, Ars Technica has an article about how Verizon is letting its copper network rot in order to passively encourage customers to switch to fiber.

Involuntary Eye Movement May Provide Definitive Diagnosis of ADHD

Soulskill posted about a month ago | from the either-that-or-a-massive-brain-hemmorhage dept.

Medicine 200

Zothecula writes: If a child who's simply very active is mistakenly diagnosed with Attention Deficit Hyperactivity Disorder (ADHD), he can end up on pharmaceuticals such as Ritalin unnecessarily. The problem is, it can be quite difficult to determine if someone actually has ADHD, and misdiagnoses are common. Now, however, researchers from Tel Aviv University have announced that analyzing a patient's eye movements may be the key. "The researchers found a direct correlation between ADHD and the inability to suppress eye movement in the anticipation of visual stimuli. The research also reflected improved performance by participants taking methylphenidate, which normalized the suppression of involuntary eye movements to the average level of the control group."

The Flight of Gifted Engineers From NASA

Soulskill posted about a month ago | from the when-NASA-starts-looking-like-the-USPTO dept.

NASA 160

schwit1 writes: Rather than work in NASA, the best young engineers today are increasingly heading to get jobs at private companies like SpaceX and XCOR. This is a long article, worth reading in its entirety, but this quote sums it up well: "As a NASA engineering co-op student at Johnson Space Center, Hoffman trained in various divisions of the federal space agency to sign on eventually as a civil servant. She graduated from college this year after receiving a generous offer from NASA, doubly prestigious considering the substantial reductions in force hitting Johnson Space Center in recent months. She did have every intention of joining that force — had actually accepted the offer, in fact — when she received an invitation to visit a friend at his new job with rising commercial launch company SpaceX.

Hoffman took him up on the offer, flying out to Los Angeles in the spring for a private tour. Driving up to the SpaceX headquarters, she was struck by how unassuming it was, how small compared to NASA, how plain on the outside and rather like a warehouse. As she walked through the complex, she was also surprised to find open work areas where NASA would have had endless hallways, offices and desks. Hoffman described SpaceX as resembling a giant workshop, a hive of activity in which employees stood working on nitty-gritty mechanical and electrical engineering. Everything in the shop was bound for space or was related to space. ... Seeing SpaceX in production forced Hoffman to acknowledge NASA might not be the best fit for her. The tour reminded her of the many mentors who had gone into the commercial sector of the space industry in search of better pay and more say in the direction their employers take." At NASA, young engineers find that they spend a lot of time with bureaucracy, the pace is slow, their projects often get canceled or delayed, and the creative job satisfaction is poor. At private companies like SpaceX, things are getting built now.

The Billion-Dollar Website

Soulskill posted about a month ago | from the get-what-you-paid-for-minus-a-billion-dollars dept.

Government 194

stoborrobots writes: The Government Accountability Office has investigated the cost blowouts associated with how the Centers for Medicare & Medicaid Services (CMS) handled the project. It has released a 60-page report entitled Ineffective Planning and Oversight Practices Underscore the Need for Improved Contract Management, with a 5 page summary. The key takeaway messages are:

  • CMS undertook the development of and its related systems without effective planning or oversight practices...
  • [The task] was a complex effort with compressed time frames. To be expedient, CMS issued task orders ... when key technical requirements were unknown...
  • CMS identified major performance issues ... but took only limited steps to hold the contractor accountable.
  • CMS awarded a new contract to another firm [and the new contract's cost has doubled] due to changes such as new requirements and other enhancements...

Correcting Killer Architecture

samzenpus posted about a month ago | from the built-to-kill dept.

United Kingdom 98

minstrelmike writes In Leeds, England, architects are adding a plethora of baffles and other structures to prevent the channeling of winds from a skyscraper that have pushed baby carriages into the street and caused one pedestrian death by blowing over a truck. Other architectural mistakes listed in the article include death ray buildings that can melt car bumpers and landscape ponds that blind tenants.

Kevlar Protects Cables From Sharks, Experts Look For Protection From Shark Week

samzenpus posted about a month ago | from the just-when-you-thought-it-was-safe-to-turn-on-the-TV dept.

Shark 103

Brandon Butler writes As an ode to Shark Week: Sharks have been known to show an appetite for fiber cables underwater, and last week a Google official said to prevent sharks from wreaking havoc on the company's trans-Pacific fiber lines, it wraps them in Kevlar. It's believed that the emission of electrical currents from the fiber piping is mistaken by sharks occasionally as prey. In related news, a growing number of scientists are becoming disgruntled with the Discovery network's sensationalist programs. Many shark experts are refusing to work with the channel after such programs as their Megalodon "documentary" and their latest Shark of Darkness (not to mention the mermaid special, which was sadly missing a singing crab.)

Sockatume writes The Verge has an article on Discovery's hugely successful Shark Week, discussing how the increasing sensationalist special event misrepresents science and exploits nature and local history for shock value. Scientists who appeared in and were misrepresented by the channel's programming are beginning to encourage their peers to stay away from the Discovery network, which stands by the programming 's viewing figures.

Hemp Fibers Make Better Supercapacitors Than Graphene

samzenpus posted about a month ago | from the burning-up-and-down dept.

Science 178

biodata (1981610) writes "BBC News is reporting findings published in the journal ACS Nano by Dr David Mitlin from Clarkson University. Dr. Mitlin's team took waste hemp stems and recycled the material into supercapacitors with performance as good, or better, than those built from graphene, at a fraction of the raw materials cost. "We're making graphene-like materials for a thousandth of the price - and we're doing it with waste. The hemp we use is perfectly legal to grow. It has no THC in it at all - so there's no overlap with any recreational activities," Mitlin says.

How to Maintain Lab Safety While Making Viruses Deadlier

timothy posted about a month ago | from the this-one-goes-to-11 dept.

Medicine 218

Lasrick (2629253) writes "A scientist at the University of Wisconsin-Madison published an article in June revealing that he had taken genes from the deadly human 1918 Spanish Flu and inserted them into the H5N1 avian flu to make a new virus—one which was both far deadlier and far more capable of spreading than the original avian strain. In July it was revealed that the same scientist was conducting another study in which he genetically altered the 2009 strain of flu to enable it to evade immune responses, 'effectively making the human population defenseless against re-emergence.' In the U.S. alone, biosafety incidents involving pathogens happen more than twice per week. These 'gain-of-function' experiments are accidents waiting to happen, with the possibility of starting deadly pandemics that could kill millions. It isn't as if it hasn't happened before: in 2009, a group of Chinese scientists created a viral strain of flu virus that escaped the lab and created a pandemic, killing thousands of people. 'Against this backdrop, the growing use of gain-of-function approaches for research requires more careful examination. And the potential consequences keep getting more catastrophic.' This article explores the history of lab-created pandemics and outlines recommendations for a safer approach to this type of research."

Transparent Fish Lead to Stem Cell Research Breakthrough

timothy posted about a month ago | from the we-see-what-you-did-there dept.

Australia 33

brindafella (702231) writes Australian scientists have accidentally made one of the most significant discoveries in stem cell research, by studying the transparent embryos of Zebrafish (Danio rerio). The fish can be photographed and their development studied over time, and the movies can be played backwards, to track back from key developmental stages to find the stem cell basis for various traits of the fish. This fundamental research started by studying muscles, but the blood stem cell breakthrough was a bonus. They've found out how hematopoietic stem cells (HSC), among the most important stem cells found in blood and bone marrow, is formed. The scientists are based at the Australian Regenerative Medicine Institute at Monash University. The research has been published in the Nature medical journal. This discovery could lead to the production of self-renewing stem cells in the lab to treat multiple blood disorders and diseases.

Giant Greek Tomb Discovered

samzenpus posted about a month ago | from the digging-up-the-past dept.

Science 164

schwit1 writes Archaeologists have uncovered the largest tomb ever discovered in Greece and think it is linked to the reign of Alexander the Great. "The tomb, dating to around 300 BC, may have held the body of one of Alexander's generals or a member of his family. It was found beneath a huge burial mound near the ancient site of Amphipolis in northern Greece. Antonis Samaras, Greece's prime minister, visited the dig on Tuesday and described the discovery as 'clearly extremely significant'. A broad, five-yard wide road led up to the tomb, the entrance of which was flanked by two carved sphinxes. It was encircled by a 500 yard long marble outer wall. Experts believe a 16ft tall lion sculpture previously discovered nearby once stood on top of the tomb."

Historians Rediscover Einstein's Forgotten Model of the Universe

samzenpus posted about a month ago | from the rough-draft dept.

Space 35

KentuckyFC writes In 1931, after a 3- month visit to the U.S., Einstein penned a little known paper that attempted to show how his theory of general relativity could account for some of the latest scientific evidence. In particular, Einstein had met Edwin Hubble during his trip and so was aware of the latter's data indicating that the universe must be expanding. The resulting model is of a universe that expands and then contracts with a singularity at each end. In other words, Einstein was studying a universe that starts with a big bang and ends in a big crunch. What's extraordinary about the paper is that Einstein misspells Hubble's name throughout and makes a number of numerical errors in his calculations. That's probably because he wrote the paper in only 4 days, say the historians who have translated it into English for the time. This model was ultimately superseded by the Einstein-de Sitter model published the following year which improves on this in various ways and has since become the workhorse of modern cosmology.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>