Monday, March 30, 2015

Liquid metal machines 'eat' in order to move

Source: http://www.engadget.com/2015/03/30/liquid-metal-eating-machines/

Liquid metal art

Robots typically rely on batteries to get power, but they may soon have to do little more than nibble on another material to start moving. Chinese researchers have developed simple liquid metal machines (not shown here) that zip around if they "eat" aluminum and other substances that produce electrochemical reactions. It's not possible to directly control their movement, but they closely mimic whatever space they're in -- you can propel them through channels, for instance.

These amorphous machines aren't blisteringly fast. Right now, chewing on metal lets them move at about 2 inches per second for over an hour. It's doubtful that you'll see a nimble, Terminator 2-style shapeshifting android any time soon, then -- perhaps thankfully -- but one of the basic ingredients for that kind of liquid robot is now in place.

[Image credit: Shelley Brunt, Flickr]

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Source: Xinhua

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Sunday, March 29, 2015

Inhabitat's Week in Green: e-paper shoes, superhighways and solar ovens

Source: http://www.engadget.com/2015/03/29/superhighways-shoes-oven/

Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green.

Inhabitat's Week in Green

Fans of green cars are eagerly awaiting the release of the Tesla Model X, but you won't have to wait to see what it looks like on the road -- a YouTube user spotted the new car cruising down the freeway in Palo Alto, California. The electric vehicle, which was originally supposed to be released in 2013, is now set to launch in the third quarter of 2015. In other automotive news, Mercedes-Benz has announced plans to release 10 new plug-in hybrid models by 2017. The new models will be designated with a simple "e" instead of the longer "plug-in hybrid" branding. Toyota is currently testing its i-Road three-wheeled electric vehicle in France. The i-Road is seen as a "last-mile" vehicle, and Toyota wants to see how it can integrate with public transportation to decrease traffic gridlock.

In other green transportation news, a Russian oligarch has announced plans to build a massive superhighway that would connect all the continents in the Northern Hemisphere. NASA is quietly testing an electric plane concept that has the potential to shake up the aviation industry. The plane, which looks quite a bit different than today's typical commercial jet, has 18 independently operated electric motors that are powered by lithium-phosphate batteries. And for contemporary nomads, the Mogo Freedom is a versatile trailer that sleeps two and contains plenty of storage space for schlepping outdoor gear.

The Solar Decathlon is one of the biggest green architecture events of the year, and plans for this year's slate of houses are already trickling in. A team of German and American students from Munich and Austin, Texas (respectively), will build NexusHaus, a small one-story prefab that's equipped with an efficient water-treatment system and rooftop solar panels. In other design news, Spanish architects Jose Selgas and Lucia Cano of SelgasCano just unveiled designs for the 2015 Serpentine Pavilion, a temporary structure that will be built in London's Kensington Gardens. The United Nations is partnering with the social enterprise Better Shelter to deliver 10,000 solar-powered flat-pack IKEA shelters to refugee families. Irish company Thermo Tent has created a new type of insulated camping tent that maintains constant internal temperatures and muffles noise, while Heimplanet released a new inflatable tent that can fit up to six people. A father-daughter team has recreated many of the scenes from Jurassic Park using stop-motion video and over $100,000 worth of Lego bricks. And in wearable tech news, a new shoe created by iShüu Technologies is made from electronic paper that can change colors and patterns. And fashion designer Pauline van Dongen and architect Behnaz Farahi have teamed up to create a 3D-printed flexible collar that can move on its own with a little help from nitinol and a small electric signal.

Chinese officials have announced plans to shutter all of Beijing's coal-fired power plants by 2016. The city will be switching to gas-powered plants, which are significantly cleaner. Meanwhile, Europe is leading the way when it comes to dealing with climate change. France just passed a new law that will require all new commercial buildings to be at least partially covered with either solar panels or green roofs. But increases in renewable energy aren't confined to the European continent. Thanks to heavy rainfall, Costa Rica was able to run solely on renewable energy for more than 75 days. And in Uzbekistan, workers have erected an enormous solar oven that uses concentrated solar energy to produce temperatures hot enough to melt metal. New photos show the futuristic structure, which can heat up to 3,000 degrees Celsius. In other clean energy news, researchers have figured out a way to transform packing peanuts -- those little, white, foam nuggets that typically end up in the landfill -- into carbon anodes for lithium-ion batteries.

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Friday, March 27, 2015

A Beginner's Guide to Navy-Strength Rum

Source: http://gizmodo.com/a-beginners-guide-to-navy-strength-rum-1694043250

The Royal Navy's successful invasion of Jamaica in 1655 had a lot of terribly negative outcomes. The commanders ended up in the Tower of London. Many of the English sailors fell sick or starved. A lot of Spanish settlers died. But there was one undeniably positive outcome: rum.

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Think twice before pulling up personal information online from a hotel room or coffee shop

Source: http://www.businessinsider.com/public-wifi-think-twice-before-accessing-personal-info-2015-3

bank vault

Abundant Wi-Fi is one of the best 21st century conveniences. But while the ease of an open hotspot may be enticing, be careful: Hackers are constantly looking for vulnerable access points intercept data.

Earlier today we reported on a huge internet vulnerability plaguing the hospitality world. Networking equipment often used by hotel chains had a gaping security hole that allowed hackers to gain access into the network and monitor and tamper with any traffic that flowed through. Anyone who used the hotels' Wi-Fi stood the chance of having their traffic intercepted.

We asked the security expert behind this finding, Justin W Clarke, if he thought this meant that all hotel Wi-Fi networks are a hot-bed for nefarious cybercrime.

He wouldn’t go so far. Clarke is a researcher that sees vulnerabilities like these all the time. This week's discovery, while frightening, is an example of the need for security diligence, and for businesses to ensure their infrastructure is secure.

“The reality,” Clarke said, “is that there’s no perfect way to access the internet.” He added that personally he would think twice before checking his bank account at a hotel or cafe. This gets at a critical point most people overlook.

This week's finding isn't about hotels per se; it's about the freewheeling nature people have when they surf the web. People quite often share their data in potentially unsecure environments.

On the extreme opposite end, some individuals may use separate computers only to check their financial information.

There's a middle-point, where people are more mindful of if their data can get intercepted. It's probably wise to not log personal information unless you're absolutely sure about security. Unless you are in your own private n! etwork, it’s hard to be sure where your data is going. 

Additionally, there are safeguards users can adopt to further protect themselves. People can use a virtual private networks (VPNs) to encrypt their traffic. In fact, that’s what many security experts — including Clarke — do when using public hotspots. 

Use common sense. Just think: What am I accessing right now? Is it private? Is my network private? Would it be bad if a third-party could intercept this traffic? Then proceed.

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You'll soon get 10TB SSDs thanks to new memory tech

Source: http://www.engadget.com/2015/03/27/toshiba-intel-3d-nand-chips/

SSDs and other flash memory devices will soon get cheaper and larger thanks to big announcements from Toshiba and Intel. Both companies revealed new "3D NAND" memory chips that are stacked in layers to pack in more data, unlike single-plane chips currently used. Toshiba said that it's created the world's first 48-layer NAND, yielding a 16GB chip with boosted speeds and reliability. The Japanese company invented flash memory in the first place and has the smallest NAND cells in the world at 15nm. Toshiba is now giving manufacturers engineering samples, but products using the new chips won't arrive for another year or so.

At the same time, Intel and partner Micron revealed they're now manufacturing their own 32-layer NAND chips that should also arrive in SSDs in around a year. They're sampling even larger capacity NAND memory than Toshiba, with 32GB chips available now and a 48GB version coming soon. Micron said the chips could be used to make gum-stick sized M.2 PCIe SSDs up to 3.5TB in size and 2.5-inch SSDs with 10TB of capacity -- on par with the latest hard drives. All of this means that Toshiba, Intel/Micron and companies using their chips will soon give some extra competition to Samsung, which has been using 3D NAND tech for much longer. The result will be nothing but good for consumers: higher capacity, cheaper SSDs that will make spinning hard disks sleep with one eye open.

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Source: Intel, Toshiba

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