By timothy from
Slashdot's zippy-is-right department:
coolnumbr12 writes with this excerpt from IBTimes:
"Japan's magnetic-levitation train is still more than decade away from completion, but the L-Zero recently proved that it really is the world's fastest train. On a 15-mile stretch of test track, the L-Zero reached speeds of 310 miles per hour. After the successful trials, Central Japan Railway Co. is going ahead with a 5.1 trillion yen ($52 billion) plan to build a 177-mile maglev line between Tokyo and Nagoya. CJR says the trip will take just 40 minutes on the L-Zero." There are other fast trains in the world, but the
L-Zero edges out the others on
this list.
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By timothy from
Slashdot's preserving-layers-of-lies department:
A week ago, we posted news that federal
prosecutors were seeking jail time for Chad Dixon, an Indiana man who made money teaching others how to pass polygraph examinations. Now, reader Frosty Piss writes that Dixon
"was sentenced Friday to eight months in prison. Prosecutors described Chad Dixon as a 'master of deceit.' Prosecutors, who had asked for almost two years in prison, said Dixon crossed the line between free speech protected under the First Amendment and criminal conduct when he told some clients to conceal what he taught them while undergoing government polygraphs. Although Dixon appears to be the first charged publicly, others offering similar instruction say they fear they might be next. 'I've been worried about that, and the more this comes about, the more worried I am,' said Doug Williams, a former police polygraphist in Oklahoma who claims to be able to teach people to beat what he now considers a 'scam' test."Read Replies (0)
By timothy from
Slashdot's so-what-things-can-we-conflate-today-for-you-sir? department:
theodp writes
"Back in the day, leprosy patients were stigmatized and shunned, quarantined from society in Leper Colonies. Those days may be long gone, but are our mapping, GPS, and social media technologies in effect helping to create modern-day 'Leper Colonies'? The recently-shuttered GhettoTracker.com (born again as Good Part of Town) generated cries of racism by inviting users to rate neighborhoods based on 'which parts of town are safe and which ones are ghetto, or unsafe'. Calling enough already with the avoid-the-ghetto apps, The Atlantic Cities' Emily Badger writes, "this idea toes a touchy line between a utilitarian application of open data and a sly wink toward people who just want to steer clear of 'those kinds of neighborhoods.'" The USPTO has already awarded avoid-crime-ridden-neighborhoods-like-the-plague patents to tech giants Microsoft, IBM, and Google. So, when it comes to navigational apps, where's the line between utility and racism? 'As mobile devices get smarter and more ubiquitous,' writes Svati Kirsten Narula, 'it is tempting to let technology make more and more decisions for us. But doing so will require us to sacrifice one of our favorite assumptions: that these tools are inherently logical and neutral...the motivations driving the algorithms may not match the motivations of those algorithms' users.' Indeed, the Google patent for Storing and Providing Routes proposes to 'remove streets from recommended directions if uploaded route information indicates that travelers seem to avoid the street.' Even faster routes that 'traverse one or more high crime areas,' Google reasons, 'may be less appealing to most travelers'."Read Replies (0)
By timothy from
Slashdot's and-for-his-next-trick department:
MojoKid writes "Tesla CEO Elon Musk has more on his mind that just cars and 4,000 MPH Hyperloop transportation systems. He also
tweeted his intention of developing a hand-manipulated holographic design engine and designing a rocket part with only hand gestures, finally printing the part in titanium." And now Musk has
posted the video he promised showing off the design process:
"Musk showed a wireframe of the rocket part, and he was able to rotate the 3D object on a screen with one hand, and with a second hand, he zoomed in and out, moved it around the screen, and spun the object around and "caught it"--all in the air. He moved on to manipulating an actual 3D CAD model and interacting with the software; you can see that he used a Leap Motion controller. Next, he shows off a 3D projection, a freestanding glass projection (Ironman style), and interacts with the model using the Oculus Rift. Finally, he prints the part in titanium with a 3D metal printer. Note that we don't actually see him design anything; the models he works with are already made. Still, it's exciting to see new ways of doing things come to life on screen."Read Replies (0)
By timothy from
Slashdot's but-for-bumper-stickers-it's-not-so-bad department:
Do you worry that the widespread use of plate-scanning cameras might be used in
ways that violate your privacy ? Now you can ratchet your worry level up a bit: Ars Technica reports that "This week, the California State Senate approved a bill that
would create the nation’s first electronic license plate. Having already passed the state’s assembly, the bill now goes to Gov. Jerry Brown (D) for his signature." From the article:
"The idea is that rather than have a static piece of printed metal adorned with stickers to display proper registration, the plate would be a screen that could wirelessly (likely over a mobile data network) receive updates from a central server to display that same information. In an example shown by a South Carolina vendor, messages such as 'STOLEN,' 'EXPIRED,' or something similar could also be displayed on a license plate. ... The state senator who introduced the bill, Sen. Ben Hueso, a Democrat who represents San Diego, did not respond to Ars' multiple requests for an interview or comment. It still remains unclear as to exactly why this bill was proposed and what its objectives are. The precise technical details of the program are similarly unclear, as is how long plate information would be retained and who would have access to it."Read Replies (0)
By timothy from
Slashdot's aren't-you-glad-to-be-so-fully-protected? department:
Ars Technica reports that security researcher Rob Graham of Errata Security, after analyzing nearly 23,000 Tor connections through an exit node that Graham controls, believes that the encryption used by a majority of Tor users
could be vulnerable to NSA decryption: "About 76 percent of the 22,920 connections he polled used some form of 1024-bit Diffie-Hellman key," rather than stronger elliptic curve encryption. More from the article:
"'Everyone seems to agree that if anything, the NSA can break 1024 RSA/DH keys,' Graham wrote in a blog post published Friday. 'Assuming no "breakthroughs," the NSA can spend $1 billion on custom chips that can break such a key in a few hours. We know the NSA builds custom chips, they've got fairly public deals with IBM foundries to build chips.' He went on to cite official Tor statistics to observe that only 10 percent of Tor servers are using version 2.4 of the software. That's the only Tor release that implements elliptical curve Diffie-Hellman crypto, which cryptographers believe is much harder to break. The remaining versions use keys that are presumed to be weaker."Read Replies (0)