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Experiment Suggests Monkeys Can Do Basic Math

samzenpus posted about 3 months ago | from the I-waana-add-like-you-hoo-hoo dept.

Math 87

sciencehabit (1205606) writes "It looks like a standardized test question: Is the sum of two numbers on the left or the single number on the right larger? Rhesus macaques that have been trained to associate numerical values with symbols can get the answer right, even if they haven't passed a math class. The finding doesn't just reveal a hidden talent of the animals—it also helps show how the mammalian brain encodes the values of numbers. Previous research has shown that chimpanzees can add single-digit numbers. But scientists haven’t explained exactly how, in the human or the monkey brain, numbers are being represented or this addition is being carried out. Now, a new study (abstract) helps begin to answer those questions."

Women Increasingly Freezing Their Eggs To Pursue Their Careers

samzenpus posted about 3 months ago | from the getting-your-ducks-in-a-row dept.

Biotech 342

Lasrick (2629253) writes "Really interesting piece by Emma Rosenblum about women freezing their eggs in order to take 'biological clock' pressure off while they pursue careers: 'Not since the birth control pill has a medical technology had such potential to change family and career planning. The average age of women who freeze their eggs is about 37, down from 39 only two years ago... And fertility doctors report that more women in their early 30s are coming in for the procedure. Not only do younger women have healthier eggs, they also have more time before they have to use them.'"

Venus' Crust Heals Too Fast For Plate Tectonics

samzenpus posted about 3 months ago | from the too-hot-to-crack dept.

Earth 135

An anonymous reader writes in with an interesting look at how important plate tectonics may be to life and why the crust on Venus works differently than it does on Earth. "Without plate tectonics, carbon would build up in the atmosphere. Venus, which does not have tectonics, shows the results: an atmosphere that is 96 percent carbon dioxide. It's toxic. Yet Venus is about the same size and composition as our planet, so why doesn't it have plate tectonics? Some researchers made a model to explore how Earth initiated plate movements, and these same researchers made one model of its neighbor for comparison. A 1.5-billion-year-old Earth and a similarly aged Venus were modeled as a hot, mushy material made of tiny particles of rock. The model uses physics at the one-millimeter rock grain scale to explain how the whole planet behaves. According to David Bercovici, a geophysicist at Yale who was an author on the paper, the model also shows how plate tectonics emerged on Earth but not on her twin."

$42,000 Prosthetic Hand Outperformed By $50 3D Printed Hand

timothy posted about 3 months ago | from the chop-off-your-hand-to-check dept.

Medicine 288

An anonymous reader writes "A man named Jose Delgado was so used to using a $42,000 myoelectric prosthetic hand for the last year that he didn't realize that there were other options out there. Although Delgado, born without a left hand, was able to obtain the hand via his insurance, he found that a 3D printed 'Cyborg Beast,' an open source hand which costs just $50 to print, actually was more comfortable and performed better than the device which costs 840 times as much money."

Biofuels From Corn Can Create More Greenhouse Gases Than Gasoline

timothy posted about 3 months ago | from the as-long-as-it-looks-good dept.

Earth 159

New submitter Chipmunk100 (3619141) writes "Using corn crop residue to make ethanol and other biofuels reduces soil carbon and can generate more greenhouse gases than gasoline, according to a study published today in the journal Nature Climate Change. The findings by a University of Nebraska-Lincoln team of researchers cast doubt on whether corn residue can be used to meet federal mandates to ramp up ethanol production and reduce greenhouse gas emissions."

Why Portland Should Have Kept Its Water, Urine and All

timothy posted about 3 months ago | from the except-for-homeopathy dept.

Crime 332

Ars Technica has nothing good to say about the scientific understanding (or at least public understanding) that led Portland to drain 38 million gallons of water after a teenage prankster urinated into the city's water supply. Maybe SCADA systems shouldn't be quite as high on the list of dangers, when major utilities can be quite this brittle even without a high-skill attack.

SpaceX Successfully Delivers Supplies To ISS

timothy posted about 3 months ago | from the eggs-and-dye-mostly dept.

ISS 87

Reuters reports on the successful SpaceX-carried resupply mission to the ISS: "A cargo ship owned by Space Exploration Technologies arrived at the International Space Station on Sunday, with a delivery of supplies and science experiments for the crew and a pair of legs for the experimental humanoid robot aboard that one day may be used in a spacewalk. Station commander Koichi Wakata used the outpost's 58-foot (18-meter) robotic crane to snare the Dragon capsule from orbit at 7:14 a.m. (1114 GMT), ending its 36-hour journey. ... "The Easter Dragon is knocking at the door," astronaut Randy Bresnik radioed to the crew from Mission Control in Houston. Space Exploration, known as SpaceX, had planned to launch its Dragon cargo ship in March, but was delayed by technical problems, including a two-week hold to replace a damaged U.S. Air Force radar tracking system."

LADEE Probe Ends Its Mission On the Far Side Of the Moon

timothy posted about 3 months ago | from the in-lieu-of-flowers dept.

Moon 25

The mission of NASA's LADEE probe was brought to an intentional violent end yesterday, when it smashed into the far side of the moon. As the Ars Technica report explains, "NASA's policy is to treat the locations of the Moon landings as historical sites, and it takes pains to preserve them from possible damage. LADEE didn't have the fuel to control its orbit indefinitely. As a result, the controllers had been preparing to terminate the probe for several weeks. ... The exact moment of impact isn't clear, since the precise terrain it hit couldn't be determined in advance. (If it hit a ridge, it would have happened earlier than if LADEE plowed across a plain. What is clear is that the impact destroyed the probe." Before the end of LADEE's mission, besides close up observations, the craft was used to test a new laser-based communication system.

RIP, NASA Moon Landing Engineer John C. Houbolt

timothy posted about 3 months ago | from the why-when-he-was-a-boy dept.

Moon 33

The Houston Chronicle reports the death of John C. Houbolt, whose ideas helped guide the U.S. moon-landing programs. Houbolt died on Tuesday at the age of 95, in a nursing home in Maine. Says the Chronicle's obituary: "His efforts in the early 1960s are largely credited with convincing NASA to focus on the launch of a module carrying a crew from lunar orbit, rather than a rocket from earth or a space craft while orbiting the planet. Houbolt argued that a lunar orbit rendezvous, or lor, would not only be less mechanically and financially onerous than building a huge rocket to take man to the moon or launching a craft while orbiting the earth, but lor was the only option to meet President John F. Kennedy's challenge before the end of the decade."

Closing Surgical Incisions With a Paintbrush and Nanoparticles

timothy posted about 3 months ago | from the when-superglue-just-feels-cheap dept.

Medicine 56

New submitter BiancaM (3582365) writes "A group of chemists has shown the power of nanoparticles for closing and healing surgical wounds. Using no more than a paintbrush they are able to close surgical openings as well as classical techniques such as sutures. However in fragile deep tissues such as liver even more remarkable results were found- normally fatal damage to internal organs is repaired in seconds using a nanoparticle glue. The results show that closing after surgery can be faster and simpler using nanomaterials to glue wounds shut." For something between the above linked abstract and the research paper, there's this write-up at PhysOrg, and a video of the technique in action.

Preventative Treatment For Heartbleed On Healthcare.gov

timothy posted about 3 months ago | from the welcome-to-centralized-medicine-dot-gov dept.

Government 81

As the San Francisco Chronicle reports, "People who have accounts on the enrollment website for President Barack Obama's signature health care law are being told to change their passwords following an administration-wide review of the government's vulnerability to the confounding Heartbleed Internet security flaw." Take note, though; the article goes on to immediately point out this does not mean that the HealthCare.gov site has been compromised: "Senior administration officials said there is no indication that the HealthCare.gov site has been compromised and the action is being taken out of an abundance of caution. The government's Heartbleed review is ongoing, the officials said, and users of other websites may also be told to change their passwords in the coming days, including those with accounts on the popular WhiteHouse.gov petitions page." Also at The Verge

3 Former Astronauts: Earth-Asteroid Collisions Are a Real But Preventable Danger

timothy posted about 3 months ago | from the asteroid-survival-movies-are-great dept.

Space 71

Three former astronauts — Ed Lu, Tom Jones, and Bill Anders — say that reassuring figures about the rarity of asteroid collisions with Earth are perhaps too reassuring. The B612 Foundation, of which Lu is a director, has been established to draw public awareness to the risks of a large asteroid hitting a population center -- which these three men say is a far more serious public danger than has been acknowledged by NASA and other agencies. And beyond awareness, the Foundation's immediate goal is to raise money to " design and build an asteroid-finding space telescope and launch it by 2017," and then, Armageddon-style, to follow that up with technology to divert any asteroids whose path would threaten earth.

Americans Uncomfortable With Possibility of Ubiquitous Drones, Designer Babies

Soulskill posted about 3 months ago | from the can-you-design-the-babies-to-also-be-drones dept.

United States 155

alphadogg writes: "Americans are optimistic about scientific inventions on the horizon, though are cautious about future uses of DNA, robots, drones and always-on implants, according to the latest Pew Research Center survey on future technology (PDF). Asked about the likelihood of certain advances 50 years from now, survey respondents were most sure that lab-grown custom organs for transplant will happen (81%). Only 19% expect humans will be able to control the weather by then. When asked how they felt about possible near-term advances, 65% thought robot caregivers for the elderly is a bad idea, 63% didn't want to see personal drones in U.S. airspace, and 66% thought parents altering the DNA of prospective children was a bad idea."

VA Supreme Court: Michael Mann Needn't Turn Over All His Email

Soulskill posted about 3 months ago | from the what-did-you-have-for-lunch-when-you-wrote-those-papers dept.

Earth 348

RoccamOccam sends news that the Virginia Supreme Court has ruled that Michael Mann, a climate scientist notable for his work on the "hockey stick" graph, does not have to turn over the entirety of his papers and emails under Freedom of Information laws. Roughly 1,000 documents were turned over in response to the request, but another 12,000 remain, which lawyers for the University of Virginia say are "of a proprietary nature," and thus entitled to an exemption. The VA Supreme Court ruled (PDF), "the higher education research exemption's desired effect is to avoid competitive harm not limited to financial matters," and said the application of "proprietary" was correct in this case. Mann said he hopes the ruling "can serve as a precedent in other states confronting this same assault on public universities and their faculty."

Mathematicians Devise Typefaces Based On Problems of Computational Geometry

Soulskill posted about 3 months ago | from the extending-comic-sans-into-all-dimensions dept.

Science 60

KentuckyFC writes: "Typeface design is something of an art. For many centuries, this art has been constrained by the materials available to typographers, mainly lead and wood. More recently, typographers have been freed from this constraint with the advent of digital typesetting and the number of typefaces has mushroomed. Verdana, for example, is designed specifically for computer screens. Now a father and son team of mathematicians have devised a number of typefaces based on problems they have studied in computational geometry. For example, one typeface is inspired by the folds and valleys generated by computational origami designs. Another is based on the open problem of 'whether every disjoint set of unit disks (gears or wheels) in the plane can be visited by a single taut non-self-intersecting conveyor belt.' Interestingly, several of the new typefaces also serve as puzzles in which messages are the solutions."

Oracle Deflects Blame For Troubled Oregon Health Care Site

samzenpus posted about 3 months ago | from the who's-to-blame dept.

The Courts 163

itwbennett (1594911) writes "Oracle is gearing up for a fight with officials in Oregon over its role developing an expensive health insurance exchange website that still isn't fully operational. In a letter obtained by the Oregonian newspaper this week, Oracle co-president Safra Catz said that Oregon officials have provided the public with a 'false narrative' concerning who is to blame for Cover Oregon's woes. In the letter, Catz pointed out that Oregon's decision to act as their own systems integrator on the project, using Oracle consultants on a time-and-materials basis, was 'criticized frequently by many'. And as far as Oracle is concerned, 'Cover Oregon lacked the skills, knowledge or ability to be successful as the systems integrator on an undertaking of this scope and complexity,' she added."

'Accidental' Siberian Mummies Part of Mysterious Ancient Arctic Civilization

samzenpus posted about 3 months ago | from the who-are-you-who-who-who-who? dept.

Science 34

concertina226 (2447056) writes "Russian archaeologists are trying to discover the origins of a group of 800-year-old bodies found just 29 km from the Arctic Circle, which were accidentally mummified by copper when they were buried. The mummies were discovered at Zeleniy Yar in Siberia, in 34 shallow graves, and 11 of the bodies found in the medieval burial place had either smashed skeletons or missing and shattered skulls. They may have been damaged by their peers deliberately to prevent spells emanating from them. There is only one female, a child, who is buried with her face masked by copper plates, and three male infant mummies, who wear copper masks and were bound in four or five copper hoops that each measure several centimetres wide."

NASA Proposes "Water World" Theory For Origin of Life

samzenpus posted about 3 months ago | from the from-the-water dept.

NASA 115

William Robinson (875390) writes "A new study from researchers at Nasa's Jet Propulsion Laboratory has proposed the "water world" theory as the answer to our evolution, which describes how electrical energy naturally produced at the sea floor might have given rise to life. While the scientists had already proposed this hypothesis called 'submarine alkaline hydrothermal emergence of life' the new report assembles decades of field, laboratory and theoretical research into a grand, unified picture."

In a Cloning First, Scientists Create Stem Cells From Adults

samzenpus posted about 3 months ago | from the use-your-cells dept.

Biotech 43

Trax3001BBS (2368736) writes in with news about a breakthrough in creating stem cells perfectly matched to a person's DNA. "...Lanza's group used caffeine to prevent the fused egg from dividing prematurely. Rather than leaving the egg with its newly introduced DNA for 30 minutes before activating the dividing stage, they let the eggs rest for about two hours. This gave the DNA enough time to acclimate to its new environment and interact with the egg's development factors, which erased each of the donor cell's existing history and reprogrammed it to act like a brand new cell in an embryo.'"

Kepler-186f: Most 'Earth-Like' Alien World Discovered

timothy posted about 3 months ago | from the fire-up-the-speculation-device dept.

Space 239

astroengine (1577233) writes "About 500 light-years away in the constellation Cygnus lives a star, which, though smaller and redder than the sun, has a planet that may look awfully familiar. With a diameter just 10 percent bigger than Earth's, the newly found world is the first of its size found basking in the benign temperature region around a parent star where water, if it exists, could pool in liquid form (abstract). Scientists on the hunt for Earth's twin are focused on worlds that could support liquid surface water, which may be necessary to brew the chemistry of life. "Kepler-186f is significant because it is the first exoplanet that is the same temperature and the same size (well, ALMOST!) as the Earth," David Charbonneau, with the Harvard-Smithsonian Center for Astrophysics, wrote in an email to Discovery News. "Previously, the exoplanet most like Earth was Kepler-62f, but Kepler-186f is significantly smaller. Now we can point to a star and say, 'There lies an Earth-like planet.'""

Switching From Sitting To Standing At Your Desk

samzenpus posted about 3 months ago | from the throw-away-the-tuffet dept.

Medicine 312

Hugh Pickens DOT Com (2995471) writes "Chris Bowlby reports at BBC that medical research has been building up for a while now, suggesting constant sitting is harming our health — potentially causing cardiovascular problems or vulnerability to diabetes. Advocates of sit-stand desks say more standing would benefit not only health, but also workers' energy and creativity. Some big organizations and companies are beginning to look seriously at reducing 'prolonged sitting' among office workers. 'It's becoming more well known that long periods of sedentary behavior has an adverse effect on health,' says GE engineer Jonathan McGregor, 'so we're looking at bringing in standing desks.' The whole concept of sitting as the norm in workplaces is a recent innovation, points out Jeremy Myerson, professor of design at the Royal College of Art. 'If you look at the late 19th Century,' he says, Victorian clerks could stand at their desks and 'moved around a lot more'. 'It's possible to look back at the industrial office of the past 100 years or so as some kind of weird aberration in a 1,000-year continuum of work where we've always moved around.' What changed things in the 20th Century was 'Taylorism' — time and motion studies applied to office work. 'It's much easier to supervise and control people when they're sitting down,' says Myerson. What might finally change things is if the evidence becomes overwhelming, the health costs rise, and stopping employees from sitting too much becomes part of an employer's legal duty of care. 'If what we are creating are environments where people are not going to be terribly healthy and are suffering from diseases like cardiovascular disease and diabetes,' says Prof Alexi Marmot, a specialist on workplace design, 'it's highly unlikely the organization benefits in any way.'"

'Thermoelectrics' Could One Day Power Cars

Soulskill posted about 3 months ago | from the hot-wheels dept.

Power 174

sciencehabit writes: "Fossil fuels power modern society by generating heat, but much of that heat is wasted. Researchers have tried to reclaim some of it with semiconductor devices called thermoelectrics, which convert the heat into power. But they remain too inefficient and expensive to be useful beyond a handful of niche applications. Now, scientists in Illinois report that they have used a cheap, well-known material to create the most heat-hungry thermoelectric so far (abstract). In the process, the researchers say, they learned valuable lessons that could push the materials to the efficiencies needed for widespread applications. If that happens, thermoelectrics could one day power cars and scavenge energy from myriad engines, boilers, and electrical plants."

Astronomers Solve Puzzle of the Mountains That Fell From Space

Unknown Lamer posted about 3 months ago | from the just-a-crashed-ring-station dept.

Space 51

KentuckyFC (1144503) writes "Iapetus, Saturn's third largest moon, was first photographed by the Cassini spacecraft on 31 December 2004. The images created something of a stir. Clearly visible was a narrow, steep ridge of mountains that stretch almost halfway around the moon's equator. The question that has since puzzled astronomers is how this mountain range got there. Now evidence is mounting that this mountain range is not the result of tectonic or volcanic activity, like mountain ranges on other planets. Instead, astronomers are increasingly convinced that this mountain range fell from space. The latest evidence is a study of the shape of the mountains using 3-D images generated from Cassini data. They show that the angle of the mountainsides is close to the angle of repose, that's the greatest angle that a granular material can form before it landslides. That's not proof but it certainly consistent with this exotic formation theory. So how might this have happened?

Astronomers think that early in its life, Iapetus must have been hit by another moon, sending huge volumes of ejecta into orbit. Some of this condensed into a new moon that escaped into space. However, the rest formed an unstable ring that gradually spiraled in towards the moon, eventually depositing the material in a narrow ridge around the equator. Cassini's next encounter with Iapetus will be in 2015 which should give astronomers another chance to study the strangest mountain range in the Solar System."

Your StarCraft II Potential Peaked At Age 24

Soulskill posted about 3 months ago | from the but-you're-getting-better-at-producing-lots-of-vespene-gas dept.

Games 103

An anonymous reader writes "StarCraft II is popular among competitive gamers for having the depth necessary to reward differences in skill. A new study has found that your ability keep up with the game's frantic pace starts to decline at age 24. This is relevant to more than just StarCraft II players: 'While many high-performance athletes start to show age-related declines at a young age, those are often attributed to physical as opposed to brain aging. ... While previous lab tests have shown faster reaction times for simple individual tasks, it was never clear how much relevance those had to complex, real-world tasks such as driving. Thompson noted that Starcraft is complex and quite similar to real-life tasks such as managing 911 calls at an emergency dispatch centre, so the findings may be directly relevant. However, game performance was much easier to analyze than many real-life situations because the game generates detailed logs of every move. In a way, Thompson said, the study is a good demonstration of what kinds of insights can be gleaned from the "cool data sets" generated by our digital lives.'"

Paper Microscope Magnifies Objects 2100 Times and Costs Less Than $1

Soulskill posted about 3 months ago | from the i-can-see-my-house-from-here dept.

Science 89

ananyo writes: "If ever a technology were ripe for disruption, it is the microscope. Microscopes are expensive and need to be serviced and maintained. Unfortunately, one important use of them is in poor-world laboratories and clinics, for identifying pathogens, and such places often have small budgets and lack suitably trained technicians. Now Manu Prakash, a bioengineer at Stanford University, has designed a microscope made almost entirely of paper, which is so cheap that the question of servicing it goes out of the window. Individual Foldscopes are printed on A4 sheets of paper (ideally polymer-coated for durability). A pattern of perforations on the sheet marks out the 'scope's components, which are colour-coded in a way intended to assist the user in the task of assembly. The Foldscope's non-paper components, a poppy-seed-sized spherical lens made of borosilicate or corundum, a light-emitting diode (LED), a watch battery, a switch and some copper tape to complete the electrical circuit, are pressed into or bonded onto the paper. (The lenses are actually bits of abrasive grit intended to roll around in tumblers that smooth-off metal parts.) A high-resolution version of this costs less than a dollar, and offers a magnification of up to 2,100 times and a resolving power of less than a micron. A lower-spec version (up to 400x magnification) costs less than 60 cents."

U.S. Biomedical Research 'Unsustainable' Prominent Researchers Warn

Unknown Lamer posted about 4 months ago | from the phd-researcher-deathmatch dept.

Medicine 135

sciencehabit (1205606) writes "The U.S. biomedical science system 'is on an unsustainable path' and needs major reform, four prominent researchers say. Researchers should 'confront the dangers at hand,' the authors write, and 'rethink' how academic research is funded, staffed, and organized. Among other issues, the team suggests that the system may be producing too many new researchers and forcing them to compete for a stagnating pool of funding."

Saturn May Have Given Birth To a Baby Moon

Unknown Lamer posted about 4 months ago | from the probably-an-alien-spacecraft dept.

Space 71

astroengine (1577233) writes "NASA's Saturn-orbiting Cassini spacecraft has imaged something peculiar on the outermost edge of the gas giant's A-ring. A bright knot, or arc, has been spotted 20 percent brighter than the surrounding ring material and astronomers are interpreting it as a gravitational disturbance caused by a tiny moon. "We have not seen anything like this before," said Carl Murray of Queen Mary University of London. 'We may be looking at the act of birth, where this object is just leaving the rings and heading off to be a moon in its own right.'"

Climate Scientist: Climate Engineering Might Be the Answer To Warming

samzenpus posted about 4 months ago | from the warm-up-the-cloud-gun dept.

Earth 343

Lasrick (2629253) writes "Tom Wigley is one of the world's top climate scientists, and in this interview he explains his outspoken support for both nuclear energy and research into climate engineering. Wigley was one of the first scientists to break the taboo on public discussion of climate engineering as a possible response to global warming; in a 2006 paper in the journal Science, he proposed a combined geoengineering-mitigation strategy that would address the problem of increasing ocean acidity, as well as the problem of climate change. In this interview, he argues that renewable energy alone will not be sufficient to address the climate challenge, because it cannot be scaled up quickly and cheaply enough, and that opposition to nuclear power 'threatens humanity's ability to avoid dangerous climate change.'"

Carpenter Who Cut Off His Fingers Makes "Robohand" With 3-D Printer

samzenpus posted about 4 months ago | from the finger-jam dept.

Medicine 91

mpicpp (3454017) writes with the ultimate DIY story about a carpenter in South Africa who lost his fingers in an accident, and now runs a company that makes mechanical prosthetics with 3D printing technology. "'I was in a position to see exactly what happens in the human hand. I got the basics of what it's all about and thought yeah, I'll make my own.' Richard van As is recalling the moment in May 2011 when he sat in a Johannesburg hospital waiting to hear if his fingers could be stitched back on. Just an hour earlier, he had been in his carpentry workshop sawing wood when the saw slipped and ripped diagonally through the four fingers on his right hand....After days of scouring the Internet he couldn't find anywhere to buy a functional prosthetic finger and he was astonished at the cost of prosthetic hands and limbs which began in the tens of thousands of dollars. But his online surfing paid off as it brought him to an amateur video posted by a mechanical effects artist in Washington State, by the name of Ivan Owen. Together, the pair developed a mechanical finger for van As, but their partnership has also gone on to benefit countless hand and arm amputees around the globe, through the birth of the company "Robohand." Officially launched in January 2012, Robohand creates affordable mechanical prosthetics through the use of 3D printers. Not only that, but it has made its designs open source, so that anyone with access to such printers can print out fingers, hands and now arms as well.'"

Using Supercomputers To Predict Signs of Black Holes Swallowing Stars

samzenpus posted about 4 months ago | from the hungry-hungry-black-holes dept.

Space 31

aarondubrow (1866212) writes "A 'tidal disruption' occurs when a star orbits too close to a black hole and gets sucked in. The phenomenon is accompanied by a bright flare with a unique signature that changes over time. Researchers at the Georgia Institute of Technology are using Stampede and other NSF-supported supercomputers to simulate tidal disruptions in order to better understand the dynamics of the process. Doing so helps astronomers find many more possible candidates of tidal disruptions in sky surveys and will reveal details of how stars and black holes interact."

The Best Way To Watch the "Blood Moon" Tonight

samzenpus posted about 4 months ago | from the good-omens dept.

Moon 146

An anonymous reader writes "People on the West Coast should be able to watch the beginning of the upcoming total lunar eclipse tonight at 10:20 pm. The entirety of the moon surface will be in Earth's shadow and start to glow red a couple hours later, a little after midnight. From the article: 'A lunar eclipse occurs when the sun, moon, and Earth align so that Earth's shadow falls across the moon's surface. Monday night's lunar eclipse is a total eclipse, which means Earth's shadow will cover the moon completely. The moon won't be blacked out by our planet's shadow. Instead, it will take on a reddish hue — anywhere from a bright copper to the brownish red of dried blood.'"

NASA To Send SpaceX Resupply Capsule To ISS Despite Technical Problems

samzenpus posted about 4 months ago | from the show-must-go-on dept.

NASA 71

An anonymous reader writes "Despite a critical backup computer failing on the ISS Friday, an unmanned SpaceX rocket will launch from Cape Canaveral at 4:58 p.m. Monday with more than 2 tons of supplies for the space station. From the article: 'The U.S. National Aeronautics and Space Administration decided to proceed with its resupply mission, despite technical problems with its computer in the International Space Station (ISS), as it needed to deliver necessary supplies.'"

Mathematicians Use Mossberg 500 Pump-Action Shotgun To Calculate Pi

samzenpus posted about 4 months ago | from the less-common-core-math dept.

Math 311

KentuckyFC (1144503) writes "Imagine the following scenario. The end of civilization has occurred, zombies have taken over the Earth and all access to modern technology has ended. The few survivors suddenly need to know the value of pi and, being a mathematician, they turn to you. What do you do? According to a couple of Canadian mathematicians, the answer is to repeatedly fire a Mossberg 500 pump action shotgun at a square aluminum target about 20 meters away. Then imagine that the square is inscribed with an arc drawn between opposite corners that maps out a quarter circle. If the sides of the square are equal to 1, then the area of the quarter circle is pi/4. Next, count the number of pellet holes that fall inside the area of the quarter circle as well as the total number of holes. The ratio between these is an estimate of the ratio between the area of the quarter circle and the area of a square, or in other words pi/4. So multiplying this number by 4 will give you an estimate of pi. That's a process known as a Monte Carlo approximation and it is complicated by factors such as the distribution of the pellets not being random. But the mathematicians show how to handle these too. The result? According to this method, pi is 3.13, which is just 0.33 per cent off the true value. Handy if you find yourself in a post-apocalyptic world."

Jenny McCarthy: "I Am Not Anti-Vaccine'"

samzenpus posted about 4 months ago | from the won't-somebody-please-think-of-the-children? dept.

Medicine 588

Hugh Pickens DOT Com (2995471) writes "Jenny McCarthy is claiming she has been misunderstood and is not anti-vaccine. In an op-ed in the Chicago Sun-Times, McCarthy tries to ignore everything she's been saying about vaccines for years and wipe the record clean. 'People have the misconception that we want to eliminate vaccines,' McCarthy told Time magazine science editor Jeffrey Kluger in 2009. 'Please understand that we are not an anti-vaccine group. We are demanding safe vaccines. We want to reduce the schedule and reduce the toxins.' But Kluger points out that McCarthy left the last line out of that quotation: 'If you ask a parent of an autistic child if they want the measles or the autism, we will stand in line for the f--king measles.' That missing line rather changes the tone of her position considerably, writes Phil Plait and is a difficult stance to square with someone who is not anti-vaccine. As Kluger points out, her entire premise is false; since vaccines don't cause autism, no one has to make the choice between measles (and other preventable, dangerous diseases) and autism. Something else McCarthy omitted from her interview with Kluger: 'I do believe sadly it's going to take some diseases coming back to realize that we need to change and develop vaccines that are safe,' said McCarthy. 'If the vaccine companies are not listening to us, it's their f*cking fault that the diseases are coming back. They're making a product that's sh*t. If you give us a safe vaccine, we'll use it. It shouldn't be polio versus autism.' Kluger finishes with this: 'Jenny, as outbreaks of measles, mumps and whooping cough continue to appear in the U.S.—most the result of parents refusing to vaccinate their children because of the scare stories passed around by anti-vaxxers like you—it's just too late to play cute with the things you've said.' For many years McCarthy has gone on and on and on and on and on and on about vaccines and autism. 'She can claim all she wants that she's not anti-vax,' concludes Plait, 'but her own words show her to be wrong.'"

Pluto May Have Deep Seas and Ancient Tectonic Faults

samzenpus posted about 4 months ago | from the mi-go-beach dept.

Space 47

astroengine (1577233) writes "In July 2015 we get our first close look at the dwarf planet Pluto and its moon, Charon — a fact that has scientists hypothesizing more than ever about what we might see there. One of the latest ideas put forward is that perhaps the collision that likely formed Pluto and Charon heated the interior of Pluto enough to give it an internal liquid water ocean, which also gave the small world a short-lived plate tectonics system, like that of Earth."

Russia Wants To Establish a Permanent Moon Base

samzenpus posted about 4 months ago | from the one-of-these-days-Alisa dept.

Moon 313

An anonymous reader writes "Having established its presence in the Crimean Peninsula, Russia is now shooting for a bit loftier goal, a permanent Moon base. 'As reported by the Voice of Russia, Russian Deputy Prime Minister Dmitry Rogozin told the government daily Rossiiskaya Gazeta that establishing a permanent Moon base has become one of the country's top space priorities. "The moon is not an intermediate point in the [space] race, it is a separate, even a self-contained goal," Rogozin reportedly said. "It would hardly be rational to make some ten or twenty flights to the moon, and then wind it all up and fly to the Mars or some asteroids."'"

UN: Renewables, Nuclear Must Triple To Save Climate

samzenpus posted about 4 months ago | from the its-getting-hot-in-here dept.

Earth 433

An anonymous reader writes "On the heels of a study that concluded there was less than a 1% chance that current global warming could be simple fluctuations, U.N. scientists say energy from renewables, nuclear reactors and power plants that use emissions-capture technology needs to triple in order keep climate change within safe limits. From The Washington Post: 'During a news conference Sunday, another co-chair, Rajendra K. Pachauri of India, said the goal of limiting a rise in global temperatures "cannot be achieved without cooperation." He added, "What comes out very clearly from this report is that the high-speed mitigation train needs to leave the station soon, and all of global society needs to get on board."'"

Ask Slashdot: Are You Apocalypse-Useful?

Soulskill posted about 4 months ago | from the it's-the-end-of-the-world-as-we-know-it-and-i-feel-disenfranchised dept.

Sci-Fi 737

An anonymous reader writes: "Young people, when choosing a profession, are often told to 'do what you love.' That's why we have experts in such abstruse fields as medieval gymel. But let's talk hypotheticals: if there's a worldwide catastrophe in which civilization is interrupted, somebody specializing in gymel wouldn't provide much use to fellow survivors. In a post-apocalypse world, medical doctors would be useful, as would most scientists and engineers. The bad news for Slashdotters is that decades without computers would render computer science and related professions useless. What do you consider to be the most useful and mostly useless post-apocalypse professions? How long would it take for society to rebuild enough for your profession to be useful?"

Racing To Contain Ebola

Soulskill posted about 4 months ago | from the see-if-dustin-hoffman's-available dept.

Medicine 112

An anonymous reader writes "Ebola, one of the most deadly diseases known to humans, started killing people in Guinea a few months ago. There have been Ebola outbreaks in the past, but they were contained. The latest outbreak has now killed over 100 people across three countries. One of the biggest difficulties in containing an outbreak is knowing where the virus originated and how it spread. That problem is being addressed right now by experts and a host of volunteers using Open Street Map. 'Zoom in and you can see road networks and important linkages between towns and countries, where there were none before. Overlay this with victim data, and it can help explain the rapid spread. Click on the colored blobs and you will see sites of confirmed deaths, suspected cases that have been overturned, sites where Ebola testing labs have been setup or where the emergency relief teams are currently located.'"

CSIRO Scientists' Aquaculture Holy Grail: Fish-Free Prawn Food

timothy posted about 4 months ago | from the sweet-sweet-prawn dept.

Australia 116

An anonymous reader writes "A team of CSIRO scientists has discovered the holy grail of aquaculture by developing the world's first fish-free prawn food: Novaq. According to the article there is intense global interest in Novaq because it solves one of the farmed prawn industry's biggest problems — its reliance on wild fisheries as a core ingredient in prawn food. The Novaq formula is a closely guarded secret, but it is known that the product is based on microscopic marine organisms. Not only will the new feed introduce greater sustainability into a growth industry but prawns fed on the new diet grow 40% faster and are healthier and more robust."

GM Names Names, Suspends Two Engineers Over Ignition-Switch Safety

timothy posted about 4 months ago | from the laying-blame dept.

Transportation 236

cartechboy (2660665) writes "GM said it has placed two engineers on paid leave in connection with its massive recall probe of 2 million vehicles. Now, GM is asking NASA to advise on whether those cars are safe to drive even with the ignition key alone. Significantly, individual engineers now have their names in print and face a raft of inquiries what they did or didn't know, did or didn't do, and when. A vulnerability for GM: One engineer may have tried to re-engineer the faulty ignition switch without changing the part number—an unheard-of practice in the industry. Is it a good thing that people who engineer for a living can now get their names on national news for parts designed 10 years ago? The next time your mail goes down, should we know the name of the guy whose code flaw may have caused that?"

Cost Skyrockets For United States' Share of ITER Fusion Project

Soulskill posted about 4 months ago | from the burning-plasma-and-benjamins dept.

Government 174

sciencehabit writes: "ITER, the international fusion experiment under construction in Cadarache, France, aims to prove that nuclear fusion is a viable power source by creating a 'burning plasma' that produces more energy than the machine itself consumes. Although that goal is at least 20 years away, ITER is already burning through money at a prodigious pace. The United States is only a minor partner in the project, which began construction in 2008. But the U.S. contribution to ITER will total $3.9 billion — roughly four times as much as originally estimated — according to a new cost estimate released yesterday. That is about $1.4 billion higher than a 2011 cost estimate, and the numbers are likely to intensify doubts among some members of Congress about continuing the U.S. involvement in the project."

Fruit Flies, Fighter Jets Use Similar Evasive Tactics When Attacked

Soulskill posted about 4 months ago | from the talk-to-me-goose dept.

The Military 65

vinces99 writes: "When startled by predators, tiny fruit flies respond like fighter jets – employing screaming-fast banked turns to evade attacks. Researchers at the University of Washington used an array of high-speed video cameras operating at 7,500 frames a second to capture the wing and body motion of flies after they encountered a looming image of an approaching predator (abstract). 'We discovered that fruit flies alter course in less than one one-hundredth of a second, 50 times faster than we blink our eyes, and which is faster than we ever imagined.' In the midst of a banked turn, the flies can roll on their sides 90 degrees or more, almost flying upside down at times, said Florian Muijres, a UW postdoctoral researcher and lead author of the paper. 'These flies normally flap their wings 200 times a second and, in almost a single wing beat, the animal can reorient its body to generate a force away from the threatening stimulus and then continues to accelerate,' he said."

Mathematical Proof That the Cosmos Could Have Formed Spontaneously From Nothing

Soulskill posted about 4 months ago | from the something-from-nothing dept.

Math 612

KentuckyFC writes: "One of the great theories of modern cosmology is that the universe began in a Big Bang. It's backed up by numerous lines of evidence, such as the cosmic microwave background and so on. But what caused the Big Bang, itself? For many years, cosmologists have fallen back on the idea that the universe formed spontaneously; that the Big Bang was result of quantum fluctuations in which the universe came into existence from nothing. But is this compatible with what we know about the Big Bang itself and the theories that describe it? Now cosmologists have come up with the first rigorous proof that the Big Bang could indeed have occurred spontaneously and produced the universe we see today. The proof is developed within a mathematical framework known as the Wheeler-DeWitt equation. Heisenberg's uncertainty principle allows a small region of empty space to come into existence probabilistically due to quantum fluctuations. Most of the time, such a bubble will collapse and disappear. The question these scientists address is whether a bubble could also expand exponentially to allow a universe to form in an irreversible way. Their proof (PDF) shows that this is indeed possible. There is an interesting corollary: the role of the cosmological constant is played by a property known as the quantum potential. This is a property introduced in the 20th century by the physicist David Bohm, which has the effect of making quantum mechanics deterministic while reproducing all of its predictions. It's an idea that has never caught on. Perhaps that will change now."

Nat Geo Writer: Science Is Running Out of "Great" Things To Discover

samzenpus posted about 4 months ago | from the nothing-new-under-the-sun dept.

Science 292

Hugh Pickens DOT Com (2995471) writes "John Horgan writes in National Geographic that scientists have become victims of their own success and that 'further research may yield no more great revelations or revolutions, but only incremental, diminishing returns.' The latest evidence is a 'Correspondence' published in the journal Nature that points out that it is taking longer and longer for scientists to receive Nobel Prizes for their work. The trend is strongest in physics. Prior to 1940, only 11 percent of physics prizes were awarded for work more than 20 years old but since 1985, the percentage has risen to 60 percent. If these trends continue, the Nature authors note, by the end of this century no one will live long enough to win a Nobel Prize, which cannot be awarded posthumously and suggest that the Nobel time lag 'seems to confirm the common feeling of an increasing time needed to achieve new discoveries in basic natural sciences—a somewhat worrisome trend.' One explanation for the time lag might be the nature of scientific discoveries in general—as we learn more it takes more time for new discoveries to prove themselves.

Researchers recently announced that observations of gravitational waves provide evidence of inflation, a dramatic theory of cosmic creation. But there are so many different versions of 'inflation' theory that it can 'predict' practically any observation, meaning that it doesn't really predict anything at all. String theory suffers from the same problem. As for multiverse theories, all those hypothetical universes out there are unobservable by definition so it's hard to imagine a better reason to think we may be running out of new things to discover than the fascination of physicists with these highly speculative ideas. According to Keith Simonton of the University of California, 'the core disciplines have accumulated not so much anomalies as mere loose ends that will be tidied up one way or another.'"

Can the ObamaCare Enrollment Numbers Be Believed?

timothy posted about 4 months ago | from the 7.1m-impossible-things-before-breakfast dept.

Government 723

An anonymous reader writes "When the Obama administration announced on April 1 that an estimated 7.1 million had signed up for ObamaCare by the end of March, it seemed a nearly impossible achievement. To reach 7.1 million, sign-ups had to rocket up by 67% in just one month. That's astounding enough, but an IBD review of existing ObamaCare enrollment data shows that the mathematical challenge of reaching 7.1 million sign-ups was even tougher."

Scientists/Actress Say They Were 'Tricked' Into Geocentric Universe Movie

samzenpus posted about 4 months ago | from the I-never-heard-of-such-a-thing-and-even-if-I-did-I-don't-remember-when dept.

Movies 642

EwanPalmer (2536690) writes "Three scientists and Star Trek actress Kate Mulgrew say they were duped into appearing in a controversial documentary which claims the Earth is the center of the Universe. The Principle, a film which describes itself as 'destined to become one of the most controversial films of our time', argues the long-debunked theory of geocentrism – where the earth is the center of the Universe and the Sun resolves around it – is true and Nasa has tried to cover it up. The film features the narration of actress Mulgrew, who played the part of captain Kathryn Janeway in Star Trek Voyager, as well as three prominent scientists."

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