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Scientists' Biggest Search For Dark Matter To Date Just Turned Up Nothing ( 157

Peter Dockrill, reporting for ScienceAlert: For something that's hypothesised to make up more than 80 percent of the mass of the entire universe, it's no easy thing to detect the existence of dark matter. That's the conclusion the world is coming to today, after scientists announced that a massive $10 million experiment to find traces of elusive dark matter particles had failed after an exhaustive 20-month search. "We've probed previously unexplored regions of parameter space with the aim of making the first definitive discovery of dark matter," said physicist Cham Ghag from University College London in the UK, one of the scientists who took part in the Large Underground Xenon (LUX) project based in South Dakota. "Though a positive signal would have been welcome, nature was not so kind! Nonetheless, a null result is significant as it changes the landscape of the field by constraining models for what dark matter could be beyond anything that existed previously."Ars Technica has more details.

Scientists Find Chemical-Free Way To Extend Milk's Shelf Life For Up To 3 Weeks ( 255

An anonymous reader writes from a report via Digital Trends: Researchers at Purdue University and the University of Tennessee have found a non-chemical way to extend regular milk's shelf life to around 2-3 weeks, and without affecting the nutrients or flavor. The technology they've developed involves increasing the temperature of milk by just 10 degrees for less than a second, which is well below the 70-degree Celsius threshold needed for pasteurization. That quick heat blast is still able to eliminate more than 99 percent of the bacteria left from pasteurization. "The developed technology uses low temperature, short time (LTST) in a process that disperses milk in the form of droplets with low heat/pressure variation over a short treatment time in conjunction with pasteurization," Bruce Applegate, Purdue's associate professor in the Department of Food Science, explained to Digital Trends. "The resultant product was subjected to a taste panel and participants had equal or greater preference for the LTST pasteurized milk compared to normally pasteurized milk. The shelf was determined to be a minimum of two weeks longer than the standard shelf life from pasteurization alone." As for whether or not this method will make its way to store shelves, it won't in the near future. "Currently an Ohio-based milk processor is using this technology and distributing the milk," Applegate says. "The unit is approved for processing milk in Ohio and distribution nationwide. The product is currently being distributed, however it has not been labeled as extended shelf life milk. Once the commercial application is validated the milk will be labelled with the extended shelf life." Scientists from Duke University believe there may be a large source of hydrogen gas under the ocean, caused by rocks forming from fast-spreading tectonic plates.

Large Source Of Hydrogen Gas May Lie Near Slow-Spreading Tectonic Plates Under The Ocean ( 79

New submitter pyroclast writes: According to research from Duke University, rocks forming from fast-spreading tectonic plates create hydrogen gas in large quantities. The tectonic alternation of hydrolyzed ultramafic rock to serpentinized rock has the byproduct of hydrogen gas. Science Daily reports: "'A major benefit of this work is that it provides a testable, tectonic-based model for not only identifying where free hydrogen gas may be forming beneath the seafloor, but also at what rate, and what the total scale of this formation may be, which on a global basis is massive,' said [researcher] Lincoln F. Pratson[.] 'Most scientists previously thought all hydrogen production occurs only at slow-spreading lithosphere, because this is where most serpentinized rocks are found. Although faster-spreading lithosphere contains smaller quantities of this rock, our analysis suggests the amount of H2 produced there might still be large,' [researcher Stacy] Worman said. [S]cientists need to understand where the gas goes after it's produced. 'Maybe microbes are eating it, or maybe it's accumulating in reservoirs under the seafloor. We still don't know,' Worman said. 'Of course, such accumulations would have to be quite significant to make hydrogen gas produced by serpentinization a viable fuel source.'"

Man Builds $1.5 Million Star Trek-Themed Home Theater ( 161

CIStud writes: This $1.5 million "Star Trek" home theater is the envy of every geek on the planet. The theater is a reconstruction of the bridge of the Starship Enterprise from "Star Trek: Next Generation" and also includes $1 million worth of memorabilia from the classic sci-fi TV show. The home theater was created by financier Marc Bell with the help from Jay Miller of Boca Raton-based Acoustic Innovations. The two started working on the home cinema in 2002 -- before construction of Bell's house even began -- and it took them four years to complete. CEPro reports: "A D-Box controller manipulates hydraulics installed beneath the floorboards, meaning the entire room shakes when anything loud happens on screen. The room also includes a JBL Synthesis sound system, which at the time of installation was only used in commercial theaters. The audio system is currently being upgraded to Dolby Atmos specifications and Bell plans to install a 4K projector. A big movie fan, Bell has had over 3,500 films digitized, which are stored and streamed through a Kaleidescape server. He also spent approximately $35,000 on a Prima Cinema system, allowing him and his family to watch films at home the day they are released in commercial cinemas. A wraparound control center surrounds the 11 custom leather chairs in the theater, eight of which recline into beds, while the doors that open into the theater are exact replicas of the Turbolift doors as seen on the TV show. When someone steps on the circular "transporter," the doors open with that familiar "whoosh" sound." Bell apparently likes to spend his money on others too. He has rented a local movie theater for every Star Trek film released in the past 25 years and has taken all of his employees, friends and their children along on opening night. The Wall Street Journal posted a video on YouTube of the home theater.

Tesla's 'Master Plan, Part Deux' Includes Trucks, Buses and Ride-Sharing ( 174

An anonymous reader writes from a report via Los Angeles Times: After teasing Part 2 of his "master product plan" for over a week, Elon Musk finally delivered. Los Angeles Times reports: "In a blog post published on the automaker's website, Musk introduced a multiyear, four-pronged strategy that includes new kinds of Tesla vehicles, expanded solar initiatives, updates on Tesla's 'autopilot' technology and a ride-sharing program. Commercial trucks, buses, a 'future compact SUV' and a 'new kind of pickup truck' will be added to Tesla's fleet of electric cars. A heavy-duty truck called the Tesla Semi and a shrunken bus that Musk called a 'high passenger density urban transport' vehicle are in early development stages 'and should be ready for unveiling next year,' he said. The smaller bus would be designed without a center aisle, with seats close to the entrances, and would be able to automatically pace themselves with traffic, the post said. The bus driver would become a 'fleet manager.' Musk also used the master plan to defend his bid for rooftop solar power provider SolarCity and said he aims to make Tesla's Autopilot robotic driver-assist system 10 times safer than cars that humans drive manually. Musk also plans to move Tesla into the popular ride-sharing business, not only with an Uber-like fleet but also with an app that lets Tesla owners rent out their vehicles when they're not using them, perhaps defraying a portion of their auto loans. This will happen, he said, 'when true self-driving is approved by regulators,' a turn of events that's at least several years away."

Corning Unveils Gorilla Glass 5, Can Survive Drops 'Up To 80% Of The Time' ( 111

An anonymous reader writes from a report via The Verge: Corning has unveiled their new Gorilla Glass 5, which should make its way to high-end smartphones and other electronic devices later this year and into 2017. Gorilla Glass 5 is designed to improve drop performance from devices that are dropped onto rough surfaces from waist heigh to shoulder height. Corning says it can survive up to 80 percent of the time when dropped from 1.6 meters. For comparison, Gorilla Glass 4, which was released in the fall of 2014, was marketed as being twice as tough as the previous version and twice as likely to survive drops onto uneven surfaces from about a meter high. Some things to note include the fact that in Corning's tests, the 80 percent survival rate was with pieces of glass that were 0.6mm thick -- Corning now makes glass as thin as 0.4mm. Depending on how thin manufacturers want the glass in their devices, the durability results may vary. Also, most of demos consisted of dropping the glass face down, rather than on its side or corner. Corning's vice president and general manger John Bayne said if the glass is dropped in such a way, it's going to depend on the overall design of the phone, not just the glass. Gorilla Glass 5 is currently in production, though the company says we'll hear more about it "in the next few months." There's no word as to whether or not the glass will be ready in time for the wave of devices expected this fall.

47 Years Ago Today, Apollo 11 Landed On the Moon ( 184

An anonymous reader writes: At this point 47 years ago we had begun our orbit around the Moon," writes Buzz Aldrin in a tweet. Today, Wednesday, July 20th, 2016, marks the 47th anniversary of when NASA astronauts landed on the moon for the very first time. Fox News reports: "Astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins blasted off from Earth on a massive Saturn V rocket on July 16, 1969. Four days later, the Eagle module landed on the surface with Aldrin and Armstrong inside; Collins stayed behind in the orbiting Columbia craft. Millions of people back on Earth watched, captivated, as Armstrong was the first down the ladder, then uttered his now-famous line: 'That's one small step for man, one giant leap for mankind.' The astronauts eventually returned to Earth, splashing down four days later in the Pacific. On the moon, an American flag and a plaque that read, in part, 'We came in peace for all mankind,' remained." To this day, only 12 people have ever walked on the moon. Hopefully, that number will increase within the next decade. NASA is also celebrating the 40th anniversary of the Viking 1 lander's arrival on Mars. Viking 1 was the first American craft to land on the red planet on July 20, 1976.

EPA's Gasoline Efficiency Tests Provide No Valid Information At All ( 136

schwit1 writes from a report via Behind The Black: The tests the EPA uses to establish the fuel efficiency of cars are unreliable, and likely provide no valid information at all about the fuel efficiency of the cars tested. Robert Zimmerman reports from Behind The Black: "The law requiring cars to meet these fuel efficiency tests was written in the 1970s, and specifically sets standards based on the technology then. Worse, the EPA doesn't know exactly how its CAFE testing correlates with actual results, because it has never done a comprehensive study of real-world fuel economy. Nor does anyone else. The best available data comes from consumers who report it to the DOT (WARNING: Source may be paywalled) -- hardly a scientific sampling. Other than that, everything is fine. Companies are forced to spend billions on this regulation, the costs of which they immediately pass on to consumers, all based on fantasy and a badly-written law. Gee, I'm sure glad we never tried this with healthcare!"

There's A 50% Chance of Another Chernobyl Before 2050, Say Safety Specialists ( 140

An anonymous reader writes from a report via MIT Technology Review: Spencer Wheatley and Didier Sornette at ETH Zurich in Switzerland and Benjamin Sovacool at Aarhus University in Denmark have compiled the most comprehensive list of nuclear accidents ever created and used it to calculate the chances of future accidents. They say there is a 50:50 chance that a major nuclear disaster will occur somewhere in the world before 2050. "There is a 50 percent chance that a Chernobyl event (or larger) occurs in the next 27 years," they conclude. Since the International Atomic Energy Agency doesn't publish a historical database of the nuclear accidents it rates using the International Nuclear Event Scale, others, like Wheatley and co, have to compile their own list of accidents. They define an accident as "an unintentional incident or event at a nuclear energy facility that led to either one death (or more) or at least $50,000 in property damage." Each accident must have occurred during the generation, transmission, or distribution of nuclear energy, which includes accidents at mines, during transportation, or at enrichment facility, and so on. Fukushima was by far the most expensive accident in history at a cost of $166 billion, which is 60 percent of the total cost of all other nuclear accidents added together. Wheatley and co say their data suggests that the nuclear industry remains vulnerable to dragon king events, which are large unexpected events that are difficult to analyze because they follow a different statistical distribution, have unforeseen causes, and are few in number. "There is a 50% chance that a Fukushima event (or larger) occurs in the next 50 years," they say.

Neuroscientists Have Isolated The Part Of The Brain That Controls Free Will ( 280

An anonymous reader quotes a report from ExtremeTech: Free will might have been the province of philosophers until now, but we've cracked the problem with an fMRI. Neuroscientists from Johns Hopkins report in the journal Attention, Perception, & Psychophysics that they were able to see both what happens in a human brain the moment a free choice is made, and what happens during the lead-up to that decision -- how activity in the brain changes during the deliberation over whether to act. The team devised a novel way to track a participant's focus without using cues or commands, avoiding a Schrodinger's-like dilemma of altering the process of choice by calling attention to it. Participants took positions in MRI scanners, and then were left alone to watch a split screen as rapid streams of colorful numbers and letters scrolled past on both sides. They were asked just to pay attention to one side for a while, then to the other side. When to switch sides, and for how long to look, was entirely up to them. Over the duration of the experiment, the participants glanced back and forth, switching sides dozens of times. In terms of connectivity in the brain, the actual process of switching attention from one side to the other was tightly linked with activity in the parietal lobe, which is sort of the top back quadrant of the brain. Activity during the period of deliberation before a choice took place in the frontal cortex, which engages in reasoning and plans movement. Deliberation also lit up the basal ganglia, important parts of the deep brain that handle motor control, including the initiation of motion. Participants' frontal-lobe activity began earlier than it would have if participants had been cued to shift attention, which demonstrates that the brain was planning a voluntary action rather than merely following an order. A report from Fast Company details how technology is making doctors feel like glorified data-entry clerks.

The Flux Capacitor Becomes World's Fastest Street-Legal Electric Car ( 183

An anonymous reader writes from a report via Ars Technica: Jonny Smith now has the world's fastest street-legal electric car, called the Flux Capacitor. Previously, the Flux Capacitor was only Europe's fastest street-legal electric vehicle, with a less than 11 second, 1/4-mile time under it's belt. Now it can run the quarter-mile in 9.87 seconds, thanks to the extra 44 cells added to the existing 144-cell Hyperdrive Innovation lithium-ion battery pack. That has boosted the car from 370v to 400v and the range from about 30 miles (48km) to about 50 miles (80km). "The combination of big voltage, amps, and phenomenal grip gave us early ten-second quarter miles, and when we braved the RPM limit of the motors, we managed a nine [second run]," Smith told Ars Technica. "Despite all of this power and speed, the little Enfield still felt smooth, stable, and happy, which is unbelievable given that it was designed to do 40 miles an hour."

Facebook Pitches Laser Beams As The High-Speed Internet Of The Future ( 93

An anonymous reader quotes a report from PCWorld: Facebook says it has developed a laser detector that could open the airwaves to new high-speed data communications systems that don't require dedicated spectrum or licenses. The component, disclosed on Tuesday in a scientific journal, comes from the company's Connectivity Lab, which is involved in developing technology that can help spread high-speed internet to places it currently doesn't reach. At 126 square centimeters, Facebook's new laser detector is thousands of times larger. It consists of plastic optical fibers that have been "doped" so they absorb blue light. The fibers create a large flat area that serves as the detector. They luminesce, so the blue light is reemitted as green light as it travels down the fibers, which are then bundled together tightly before they meet with a photodiode. It's described in a paper published on Tuesday in the journal Optica. Facebook says there are applications for the technology both indoors and outdoors. Around the home, it could be used to transmit high-definition video to mobile devices. Outdoors, the same technology could be used to establish low-cost communications links of a kilometer or more in length. In tests, the company managed to achieve a speed of 2.1Gbps using the detector, and the company thinks it can go faster. By using materials that work closer to infrared, the speed could be increased. And using yet-to-be developed components that work at wavelengths invisible to the human eye, the speed could be increased even more. If invisible to humans, the power could also be increased without danger of harming someone, further increasing speed and distance.

Technology Is Making Doctors Feel Like Glorified Data Entry Clerks ( 326

An anonymous reader writes from a report via Fast Company: The average day for a doctor consists of hours of data entry. Since the Health Information Technology for Economic and Clinical Health (HITECH) Act of 2009 took effect in January of 2011, which incentivized providers to adopt electronic medical records, hospitals have spent millions, sometimes billions, on computer systems that weren't designed to help providers treat patients to begin with. The technology was supposed to reduce inefficiencies, make doctors' lives easier, and improve patient outcomes, but in fact it has done the opposite. "Frankly, the main incentive is to document exhaustively so you cover your ass and get paid," says Jay Parkinson, a New York-based pediatrician and the founder of health-tech startup Sherpa. The systems are flooding doctors with important and utterly meaningless alerts. One of the biggest problems is that the systems have made it very difficult for doctors to share information between one another, which is what the systems were intended to do all along. Why? "Because it doesn't help the bottom line of the biggest medical record vendors or the hospitals to make it easy for patients to change doctors," reports Fast Company. Since it often takes weeks, or months for data to be sent to and from facilities, that, according to Consumers Union staff attorney Dana Mendelsohn, increases the chances of doctors ordering duplicate tests. All of this reduces the time doctors have with their patients. A recent study shows that the average time doctors spend with their patients is about eight minutes and 12% of their time, down from 20% of their time in the late 1980s. "This group is 15 times more likely to burn out than professionals in any other line of work," reports Fast Company. "And much of the research on the topic concludes that 'documentation overload' is a key factor." To help alleviate this pain, medical groups are working to reduce the data-entry burden for doctors, so they can in turn spend more of their time with patients.

Amazon Patents Way To Turn Lampposts, Church Steeples Into Drone Perches ( 87

An anonymous reader writes from a report via The Consumerist: Amazon has received a patent that shows what drones may be doing when they're not flying throughout the sky delivering packages: sitting on lampposts and church steeples. "Amazon was recently awarded a patent for docking and recharging stations that would be built on tall, existing structures like lampposts, cell towers, or church steeples," reports The Consumerist. "Once the drone is done making a delivery, it would be able to land on the station, recharge and refuel, as well as pick up additional packages." A "central control system" would then be able to control each docking station and connect the docked drone(s) with a local or regional packaged handling center or central facility. Based on weather or package data, the drones may be commanded accordingly. The patent says the system will not only provide directions based to the drone, but will have the ability to redirect the unmanned aerial vehicle based on the most favorable conditions, such as a route with less wind. The patent describes a system in which the drone delivers a package to the platform that then moves the item via a "vacuum tube, dumbwaiter, elevator, or conveyor to the ground level." From there, the package could be transferred to an Amazon Locker or a local delivery person. The docking stations could also act as cell towers that "provide local free or fee-based Wi-Fi services. This can enable cities to provide free Wi-Fi in public parks, buildings, and other public areas without bearing the burden of installing some, or all, of the necessary infrastructure."

MIT's Ori Robotic Modular Furniture Is Designed To Make Small Places Feel More Roomy ( 68

An anonymous reader writes: MIT's Media Lab has produced Ori, a range of robotic, modular furniture designed to make small places feel more roomy. The Architect's Newspaper reports: "With its name coming from the Japanese word 'origami,' the furniture system combines robotics, architecture, and design to let interiors double-up as bedrooms, living rooms, dining rooms, and offices. Teaming up with Swiss product designer Yves Behar, founder and CEO of Ori and research scientist at MIT Hasier Larrea has his eyes set on fundamentally altering the 'experience and economics of the urban built environment.' Speaking in a press release, Larrea added that 'Ori's systems make possible the effortless and magical transformation of interior spaces, providing the totally new experience of having our interior space intelligently conform to our activities, rather than our activities being forced to conform to our interior space.' A movable mainframe, containing a variety of concealable furniture and storage, is the core concept in Ori's modular and mechatronic furniture. Using the wall mounted control panel, the module can move across the floor and deploy different pieces of furniture. This can all be done remotely through the Ori app as well." Ori is not on the market yet, but inquiries can be made via Ori's website.

Taiwan Building Lunar Lander For NASA Moon-Mining Mission ( 84

MarkWhittington quotes a report from Blasting News: According to AFP, the Chung-shan Institute of Science and Technology in Taiwan is building a $47 million, 3.7 metric ton lunar lander on behalf of NASA. The vehicle is designed to carry a rover called Resource Prospector, which would roll about the lunar surface searching out deposits of oxygen, hydrogen, and water. The Resource Prospector mission is still being formulated but is envisioned to be a joint project with several national space agencies and commercial companies. The lunar lander is the first vehicle of its type to be built in Taiwan. "The Resource Prospector would take samples from about a meter beneath the lunar surface and then heat them in an oven to ascertain what the materials are that comprise it," reports Blasting News. The mission is part of the second stage to NASA's Journey to Mars program called "Proving Ground." "Should the Resource Prospector prove to be successful, the moon could be used as a base for space journeys into Mars," says Han Kuo-change, the head of CSIST's international cooperation program.

Kepler Confirms 100+ New Exoplanets ( 37

schwit1 writes: Astronomers have confirmed another 100 of Kepler's more than 3,000 candidate exoplanets. reports: "One of the most interesting set of planets discovered in this study is a system of four potentially rocky planets, between 20 and 50 percent larger than Earth, orbiting a star less than half the size and with less light output than the Sun. Their orbital periods range from five-and-a-half to 24 days, and two of them may experience radiation levels from their star comparable to those on Earth. Despite their tight orbits -- closer than Mercury's orbit around the sun -- the possibility that life could arise on a planet around such a star cannot be ruled out, according to Crossfield." Because the host star as well as many of these other confirmed exoplanets are red dwarf stars, the possibility of life is reduced because the star and its system is likely to have a less rich mix of elements compared to our yellow G-type Sun. In May, Kepler added a record 1,284 confirmed planets, nine of which orbit in their sun's habitable zone.
Data Storage

Researchers Develop Atomic-Scale Hard Drive That Writes Information Atom By Atom ( 68

An anonymous reader quotes a report from TechCrunch: Researchers in the Netherlands have created a microscopic storage system that encodes every bit with a single atom -- allowing them to fit a kilobyte in a space under 100 nanometers across. That translates to a storage density of about 500 terabits per square inch. For comparison, those 4-terabyte hard drives you can buy today are about 1 terabit per square inch. That's because, unlike this new system, they use hundreds or thousands of atoms to store a single bit. "Every bit consists of two positions on a surface of copper atoms, and one chlorine atom that we can slide back and forth between these two positions," explained Sander Otte, lead scientist at Delft University of Technology, in a news release. Because chlorine on copper forms into a perfectly square grid, it's easy (relatively, anyway) to position and read them. If the chlorine atom is up top, that's a 1; if it's at the bottom, that's a 0. Put 8 chlorine atoms in a row and they form a byte. The data the researchers chose to demonstrate this was a fragment of a Feynman lecture, "There's plenty of room at the bottom" (PDF) -- fittingly, about storing data at extremely small scales. (You can see a high-resolution image of the array here.) The chlorine-copper array is only stable in a clean vacuum and at 77 kelvin -- about the temperature of liquid nitrogen. Anything past that and heat will disrupt the organization of the atoms. The research was published today in the journal Nature Nanotechnology.

SpaceX Successfully Lands Falcon 9 Rocket On Solid Ground For the Second Time ( 103

SpaceX successfully landed another Falcon 9 rocket after launching the vehicle into space on Sunday evening from Florida. The Verge reports: Shortly after takeoff, the vehicle touched down at SpaceX's Landing Complex 1 -- a ground-based landing site that the company leases at the Cape. It marks the second time SpaceX has pulled off this type of ground landing, and the fifth time SpaceX has recovered one of its rockets post-launch. The feat was accomplished a few minutes before the rocket's second stage successfully put the company's Dragon spacecraft into orbit, where it will rendezvous with the International Space Station later this week. It's also the first time this year SpaceX has attempted to land one of its rockets on land. For the past six launches, each rocket has tried landing on an autonomous drone ship floating in the ocean. That's because drone ship landings require a lot less fuel to execute than ground landings.

The World's Most Powerful Telescope Just Discovered 1,230 New Galaxies ( 96

An anonymous Slashdot reader quotes a report from Vice: On Saturday night astronomers at the South African MeerKAT radio telescope array fired up 16 of its recently completed dishes and released the first ever image from what is slated to become the worldâ(TM)s most powerful radio telescope. The initial results were incredibly promising: operating with only one quarter of the 64 dishes that will eventually comprise MeerKAT, the telescope was able to find 1300 galaxies in a small corner of the universe where only 70 galaxies were known to exist previously.
Slashdot reader schwit1 quotes a report Agence France-Presse: MeerKAT's full contingent of 64 receptors will be integrated next year into a multi-nation Square Kilometer Array (SKA) which is is set to become the world's most powerful radio telescope. The images produced by MeerKAT "are far better that we could have expected," the chief scientist of the SKA in South Africa, Fernando Camilo said at the site of the dishes near the small town of Carnarvon, 600 kilometres north of Cape Town. When fully up and running in the 2020s, the SKA... will have a discovery potential 10,000 times greater than the most advanced modern instruments and will explore exploding stars, black holes, dark energy and traces of the universe's origins some 14 billion years ago.

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