Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×
Robotics

Only Twice Have Nations Banned a Weapon Before It Was Used; They May Do It Again 318

Lasrick writes: Seth Baum reports on international efforts to ban 'killer robots' before they are used. China, Israel, Russia, the United Kingdom, and the United States are apparently developing precursor technology. "Fully autonomous weapons are not unambiguously bad. They can reduce burdens on soldiers. Already, military robots are saving many service members' lives, for example by neutralizing improvised explosive devices in Afghanistan and Iraq. The more capabilities military robots have, the more they can keep soldiers from harm. They may also be able to complete missions that soldiers and non-autonomous weapons cannot." But Baum, who founded the Global Catastrophic Risk Institute, goes on to outline the potential downsides, and there are quite a few.
Earth

What If We Lost the Sky? 421

HughPickens.com (3830033) writes "Anna North writes in the NYT that a report released last week by the National Research Council calls for research into reversing climate change through a process called albedo modification: reflecting sunlight away from earth by, for instance, spraying aerosols into the atmosphere. But such a process could, some say, change the appearance of the sky — and that in turn could affect everything from our physical health to the way we see ourselves. "You'd get whiter skies. People wouldn't have blue skies anymore." says Alan Robock. "Astronomers wouldn't be happy, because you'd have a cloud up there permanently. It'd be hard to see the Milky Way anymore."

According to Dacher Keltner, a psychology professor at the University of California, losing the night sky would have big consequences. "When you go outside, and you walk in a beautiful setting, and you just feel not only uplifted but you just feel stronger. There's clearly a neurophysiological basis for that," says Keltner, adding that looking up at a starry sky provides "almost a prototypical awe experience," an opportunity to feel "that you are small and modest and part of something vast." If we lose the night sky "we lose something precious and sacred." "We're finding in our lab that the experience of awe gets you to feel connected to something larger than yourself, see the humanity in other people," says Paul K. Piff. "In many ways it's kind of an antidote to narcissism." And the sky is one of the few sources of that experience that's available to almost everybody: "Not everyone has access to the ocean or giant trees, or the Grand Canyon, but we certainly all live beneath the night sky."

Alan Robock says one possible upside of adding aerosols could be beautiful red and yellow sunsets as "the yellow and red colors reflect off the bottom of this cloud." Robock recommends more research into albedo modification: "If people ever are tempted to do this, I want them to have a lot of information about what the potential benefits and risks would be so they can make an informed decision. Dr. Abdalati says deploying something like albedo modification is a last-ditch effort. "We've gotten ourselves into a climate mess. The fact that we're even talking about these kinds of things is indicative of that."
Microsoft

How Machine Learning Ate Microsoft 96

snydeq writes Yesterday's announcement of Azure Machine Learning offers the latest sign of Microsoft's deep machine learning expertise — now available to developers everywhere, InfoWorld reports. "Machine learning has infiltrated Microsoft products from Bing to Office to Windows 8 to Xbox games. Its flashiest vehicle may be the futuristic Skype Translator, which handles two-way voice conversations in different languages. Now, with machine learning available on the Azure cloud, developers can build learning capabilities into their own applications: recommendations, sentiment analysis, fraud detection, fault prediction, and more. The idea of the new Azure offering is to democratize machine learning, so you no longer need to hire someone with a doctorate to use a machine learning algorithm."
AI

Breakthrough In Face Recognition Software 142

An anonymous reader writes: Face recognition software underwent a revolution in 2001 with the creation of the Viola-Jones algorithm. Now, the field looks set to dramatically improve once again: computer scientists from Stanford and Yahoo Labs have published a new, simple approach that can find faces turned at an angle and those that are partially blocked by something else. The researchers "capitalize on the advances made in recent years on a type of machine learning known as a deep convolutional neural network. The idea is to train a many-layered neural network using a vast database of annotated examples, in this case pictures of faces from many angles. To that end, Farfade and co created a database of 200,000 images that included faces at various angles and orientations and a further 20 million images without faces. They then trained their neural net in batches of 128 images over 50,000 iterations. ... What's more, their algorithm is significantly better at spotting faces when upside down, something other approaches haven't perfected."

Submission + - It's 2015. Where are the anti-snow robots?

RevWaldo writes: I'm hardly the first armchair inventor that's thought "like a Roomba, but for snow!" If you search around many folks have built themselves remote control snowplows / snowthrowers, but we're hardly talking The Jetsons here. You'd think self-guided bots that continuously remove snow as it's falling (thus reducing the needed mass and horsepower, making it less likely to, say, scoop up the neighbor's dog) would be all over Kickstarter and the like, but not so much. What's the hold up?
Cellphones

Modular Smartphones Could Be Reused As Computer Clusters 82

itwbennett writes The promise of modular smartphones like Google's Project Ara is that buyers will be able to upgrade components at will — and now Finnish company Circular Devices has come up with a use for discarded computing modules, which they're calling Puzzlecluster. Drawings of the Puzzlecluster architecture show a chassis with slots for the reused modules, which can then be interconnected with others to create the cluster. Just one unit could also be used as a desktop computer."
Transportation

Local Motors Looks To Disrupt the Auto Industry With 3D-Printed Car Bodies 128

An anonymous reader writes: Local Motors solicits design ideas through crowdsourcing, allows anyone to use open source software to contribute ideas, and then 3D prints car bodies according to the chosen specs in a matter of days. To prove they mean business, Local Motors 3D-printed a car on the floor of the Detroit Auto Show last week. "It took 44 hours to print the Strati’s 212 layers. Once 3D printing is complete, the Strati moves to a Thermwood CNC router—a computer-controlled cutting machine that mills the finer details—before undergoing the final assembly process, which adds the drivetrain, electrical components, wiring, tires, gauges, and a showroom-ready paint job."

Here's another big difference from the current auto industry: "Customers can also bring their vehicles in at any time for hardware and software upgrades, or they can choose to melt their vehicle down and, for instance, add a seat. Because Local Motors uses a distributed manufacturing system to make only what is purchased, it doesn't stock inventory. Anyone can come into a Local Motors microfactory, use its design lab, and work on a vehicle project free of charge."
Earth

US Senate Set To Vote On Whether Climate Change Is a Hoax 667

sciencehabit writes The U.S. Senate's simmering debate over climate science has come to a full boil today, as lawmakers prepare to vote on measures offered by Democrats that affirm that climate change is real—with one also noting that global warming is not "a hoax." In an effort to highlight their differences with some Republicans on climate policy, several Democrats have filed largely symbolic amendments to a bill that would approve the Keystone XL pipeline. They are designed to put senators on the record on whether climate change is real and human-caused.

Slashdot Top Deals

Ya'll hear about the geometer who went to the beach to catch some rays and became a tangent ?

Working...