There’s a very commonly held view that atoms can never touch: bring them together slowly, and you reach a point where they begin to repel. But in this video, Professor Philip Moriarty explains that really isn’t the case. Read more…
See the original article here:
Can Atoms Ever Touch?
vinces99 (2792707) writes “Imagine a world in which your wristwatch or other wearable device communicates directly with your online profiles, storing information about your daily activities where you can best access it – all without requiring batteries. Or, battery-free sensors embedded around your home that could track minute-by-minute temperature changes and send that information to your thermostat to help conserve energy. This not-so-distant ‘Internet of Things’ reality would extend connectivity to perhaps billions of devices. Sensors could be embedded in everyday objects to help monitor and track everything from the structural safety of bridges to the health of your heart. But having a way to cheaply power and connect these devices to the Internet has kept this from taking off. Now, University of Washington engineers have designed a new communication system that uses radio frequency signals as a power source and reuses existing Wi-Fi infrastructure to provide Internet connectivity to these devices. Called Wi-Fi backscatter, this technology is the first that can connect battery-free devices to Wi-Fi infrastructure. The researchers will publish their results at the Association for Computing Machinery’s Special Interest Group on Data Communication’s annual conference this month in Chicago. The team also plans to start a company based on the technology. The Pre-print research paper. Read more of this story at Slashdot.
See more here:
Harvesting Wi-Fi Backscatter To Power Internet of Things Sensors
Marie Curie made some of the most significant contributions to science in the 20th century. And as most people already know, she did so at a great cost to her own health. What most people probably don’t know, however, is that the radiation levels she was exposed to were so powerful that her notebooks must now be kept in lead-lined boxes . Read more…
Read this article:
Marie Curie’s 100-year-old notebook is still too radioactive to touch
Dave Knott sends this news from the CBC: Tesla stock was up five per cent on Friday morning after CEO Elon Musk said the electric-car company would deliver 100, 000 vehicles next year. Its earnings report released Thursday shows Tesla continues to operate at a loss as it spends on engineering and setting up an assembly line for its Model X SUV, which is scheduled to go into production early next year. But investors were cheered by the news that the company would deliver 100, 000 vehicles next year, up from 22, 000 in 2013 and a projected 35, 000 this year. Tesla reported a loss of $61.9 million in its second quarter, compared with a loss of $30.5 million in the same quarter a year ago. Revenue nearly doubled to $769.3 million, missing Wall Street’s forecast of $801.9 million, but expenses were also up as Tesla prepares some ambitious projects, spending $93 million in the quarter on research and development alone. While the Model X is in development, the longer-term plan is for a cheaper, mass-market car, the Model 3, to be launched in 2017. The biggest investment Tesla will make is in its large lithium-ion production plant, to be built at an as-yet-unnamed U.S. location in a $5-billion partnership with Panasonic. Read more of this story at Slashdot.
Read More:
Elon Musk Promises 100,000 Electric Cars Per Year
schwit1 (797399) writes with news that NASA scientists have tested the EmDrive, which claims to use quantum vacuum plasma for propulsion. Theoretically improbable, but perhaps possible after all. If it does work, it would eliminate the need for expendable fuel (just add electricity). From the article:Either the results are completely wrong, or NASA has confirmed a major breakthrough in space propulsion. A working microwave thruster would radically cut the cost of satellites and space stations and extend their working life, drive deep-space missions, and take astronauts to Mars in weeks rather than months. … [According to the researchers] “Test results indicate that the RF resonant cavity thruster design, which is unique as an electric propulsion device, is producing a force that is not attributable to any classical electromagnetic phenomenon and therefore is potentially demonstrating an interaction with the quantum vacuum virtual plasma.” Skepticism is certainly warranted: NASA researchers were only able to produce about 1/1000th of the force the Chinese researchers reported. But they were careful to avoid false sensor readings, so something is going on. The paper declined to comment on what that could be, leaving the physics of the system an open problem. Read more of this story at Slashdot.
Excerpt from:
NASA Tests Microwave Space Drive
yyzmcleod (1534129) writes The technology to 3D print a single part from multiple materials has been around for years, but only for polymer-based additive manufacturing processes. For metals, jobs are typically confined to a single powdered base metal or alloy per object. However, researchers at NASA’s Jet Propulsion Laboratory say they have developed a 3D printing technique that allows for print jobs to transition from one metal to another in a single object. From the article: In JPL’s technique, the build material’s composition is gradually transitioned as the print progresses. For example, the powdered build material might contain 97 percent titanium alloy and 3 percent stainless steel at the beginning of the transition. Then, in 1 percent increments between layers, the gradient progresses to 97 percent stainless steel and 3 percent Ti alloy by some defined point in the overall 3D printing process. Read more of this story at Slashdot.
See the article here:
NASA’s JPL Develops Multi-Metal 3D Printing Process
Remember that flame burst recorded by an astronaut aboard the ISS ? Well, it wasn’t just for the fireworks. In fact, that great ball of fire led to the discovery of a previously unknown type of cool-burning flame that isn’t even visible to the naked eye. Read more…
Read the article:
How This ISS Fireball Revealed a New Type of Cool, Invisible Flame
hypnosec writes: The government of Russia has announced a ~$110, 000 bounty to anyone who develops technology to identify users of Tor, an anonymising network capable of encrypting user data and hiding the identity of its users. The public description (in Russian) of the project has been removed now and it only reads “cipher ‘TOR’ (Navy).” The ministry said it is looking for experts and researchers to “study the possibility of obtaining technical information about users and users’ equipment on the Tor anonymous network.” Read more of this story at Slashdot.
Continued here:
Russia Posts $110,000 Bounty For Cracking Tor’s Privacy
Dputiger (561114) writes “It has been almost two years since AMD launched the FirePro W9000 and kicked off a heated battle in the workstation GPU wars with NVIDIA. AMD recently released the powerful FirePro W9100, however, a new card based on the same Hawaii-class GPU as the desktop R9 290X, but aimed at the professional workstation market. The W9100’s GPU features 2, 816 stream processors, and the card boasts 320GB/s of memory bandwidth, and six mini-DisplayPorts, all of which support DP1.2 and 4K output. The W9100 carries more RAM than any other AMD GPU as well, a whopping 16GB of GDDR5 on a single card. Even NVIDIA’s top-end Quadro K6000 tops out at 12GB, which means AMD sits in a class by itself in this area. In terms of performance, this review shows that the FirePro W9100 doesn’t always outshine its competition, but its price/performance ratio keep it firmly in the running. But if AMD continues to improve its product mix and overall software support, it should close the gap even more in the pro GPU market in the next 18-24 months.” Read more of this story at Slashdot.
Read this article:
AMD FirePro W9100 16GB Workstation GPU Put To the Test
From Truck Yeah! : The US Marines have been planning up the “Ultra Heavy-Lift Amphibious Connector (UHAC) to replace their beach-storming hovercrafts since 2008. They started building this one in 2012, and have finally brought out of the garage for a little test drive. Read more…
View post:
US Marines Turned A Ship Into A Truck, Watch It Be An Absolute Beast