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Education

L.A. Science Teacher Suspended Over Student Science Fair Projects 253

Posted by timothy from the science-is-sometimes-dangerous dept.
An anonymous reader writes "A high school science teacher at Grand Arts High School in Los Angeles was suspended from the classroom in February, after two of his science fair students turned in projects deemed dangerous by the administrators. "One project was a marshmallow shooter — which uses air pressure to launch projectiles. The other was an AA battery-powered coil gun — which uses electromagnetism to launch small objects. Similar projects have been honored in past LA County Science Fairs and even demonstrated at the White House."

Comment Re:Most unlikely technology in 1981: Handheld GPS (Score 1) 276

Actually, to me, most impressive of all was the fact that something *in my lifetime* actually has to account for both special and general relativity. I remember studying them in my college sophomore physics class and having the standard student complaint, "When am I ever going to need to use THIS?" (By the way Mrs Morton, I still have not diagrammed a sentence in real life).
Transportation

The Best Parking Apps You've Never Heard Of and Why You Haven't 163

Posted by samzenpus from the park-that-anywhere dept.
Bennett Haselton writes "If you read no further, use either the BestParking or ParkMe app to search all nearby parking garages for the cheapest spot, based on the time you're arriving and leaving. I'm interested in the question of why so few people know about these apps, how is it that they've been partially crowded out by other 'parking apps' that are much less useful, and why our marketplace for ideas and intellectual properly is still so inefficient." Read below to see what Bennett has to say.
Science

Nat Geo Writer: Science Is Running Out of "Great" Things To Discover 292

Posted by samzenpus from the nothing-new-under-the-sun dept.
Hugh Pickens DOT Com (2995471) writes "John Horgan writes in National Geographic that scientists have become victims of their own success and that 'further research may yield no more great revelations or revolutions, but only incremental, diminishing returns.' The latest evidence is a 'Correspondence' published in the journal Nature that points out that it is taking longer and longer for scientists to receive Nobel Prizes for their work. The trend is strongest in physics. Prior to 1940, only 11 percent of physics prizes were awarded for work more than 20 years old but since 1985, the percentage has risen to 60 percent. If these trends continue, the Nature authors note, by the end of this century no one will live long enough to win a Nobel Prize, which cannot be awarded posthumously and suggest that the Nobel time lag 'seems to confirm the common feeling of an increasing time needed to achieve new discoveries in basic natural sciences—a somewhat worrisome trend.' One explanation for the time lag might be the nature of scientific discoveries in general—as we learn more it takes more time for new discoveries to prove themselves.

Researchers recently announced that observations of gravitational waves provide evidence of inflation, a dramatic theory of cosmic creation. But there are so many different versions of 'inflation' theory that it can 'predict' practically any observation, meaning that it doesn't really predict anything at all. String theory suffers from the same problem. As for multiverse theories, all those hypothetical universes out there are unobservable by definition so it's hard to imagine a better reason to think we may be running out of new things to discover than the fascination of physicists with these highly speculative ideas. According to Keith Simonton of the University of California, 'the core disciplines have accumulated not so much anomalies as mere loose ends that will be tidied up one way or another.'"
Transportation

Land Rover Demos "Transparent Hood" 172

Posted by Unknown Lamer from the oh-look-a-possum dept.
cartechboy (2660665) writes "When we were kids, we were promised flying cars in the future, like The Jetsons. Well, now it's the future, and we don't have any flying cars. But Land Rover just unveiled some crazy new technology called the Transparent Hood system. It's brilliant in its simplicity, and yet quite complex in its implementation. Using a web of camera images and projectors, the Transparent Hood system projects the area just in front of and underneath the nose of the vehicle onto a head-up display along the lower portion of the windshield. Not only is this obviously breathtaking, but when it comes to off-roading—or parking in tight urban spaces—this could change the game. It will allow drivers to see precisely what's below them and immediately in front of them allowing precise placement of the vehicle's front wheels. The system also displays key vehicle data including speed, incline, roll angle, steering position, and drive mode. People, this is the future, and the future is now."
The Media

60 Minutes Dubbed Engines Noise Over Tesla Model S 544

Posted by timothy from the at-least-they-didn't-detonate-it dept.
cartechboy (2660665) writes "Did you watch the Tesla 60 Minutes segment the other night? If you did, you might have ended up on the floor rolling around laughing like I did. Since when does the Tesla Model S electric car make audible engine noises? Or downshift? Turns out, 60 Minutes dubbed engine noises and a downshift over the Model S running footage. The show claims it was an editing error. Call it what you want, it was absolutely hilarious. A little note to TV producers assigned to cover Tesla Motors in the future: Electric cars don't upshift or downshift." At least they didn't fraudulently blow it up!

Comment Re:Gimmicks gonna gimmick. (Score 3, Interesting) 180

by sh00z (#46638077) Attached to: A Third of Consumers Who Bought Wearable Devices Have Ditched Them
Maybe they learned what they wanted to learn, and didn't "need" (in the first-world sense) the device any longer. I put a power meter on my bicycle. After about a year of riding and reading it, I could estimate from my perceived exertion just about what my power output was, so I removed the device.

Comment Re:13 deaths? (Score 1) 518

by sh00z (#46630733) Attached to: Department of Transportation Makes Rear View Cameras Mandatory

Cars would probably be a lot safer if they were made more simply, and they didn't change the design ever 2 or 3 years. Stick with time tested designs and get all the bugs out and you'd end up with a car that was reliable and safe.

That is a strong assertion. Can you back that up? Over the years, cars have become safer both for the people inside and other road users (well, the latter probably doesn't really hold for SUV monsters), and also got much better fuel economy. A lot of that you can't achieve by debugging an existing design. Think of aerodynamics and crumple zones, which are integrated into the entire car design. Over here (Netherlands), the minimum age and frequency for mandatory technical inspections of old cars have been relaxed over the years, apparently because of the increase in durability.

The problem is the additional requirements/hardware, and the weight impacts. The 1989 Honda CRX HF had an EPA highway rating of 50 mpg. Today's CRZ is essentially that same form factor with "bugs worked out," but once you've added crumple zones, front and side impact airbags, ABS, traction control, the energy removed from the gasoline by substituting 10% ethanol, and whatever other requirements that have evolved, even a hybrid can only get 39. It would be interesting to see what a gas-only version of this car could do.
Transportation

If Ridesharing Is Banned, What About Ride-Trading? 353

Posted by samzenpus from the hop-on dept.
Bennett Haselton writes "The city of Seattle just imposed new limits on commercial app-based ride-sharing companies like Uber and Lyft, effectively protecting taxi companies from low-cost competition in the form of smartphone apps. If other cities follow suit, could a company help ridesharers circumvent the restrictions by creating a ride-trading app, allowing drivers to earn 'miles' by driving passengers, and redeem those miles later to get rides for themselves?" Continue reading below to see what Bennett has to say.

Comment Re: "Vulnerable"? (Score 1) 93

by sh00z (#46620663) Attached to: Security Evaluation of the Tesla Model S

As an aside: We worked with CAA (Canadian version of AAA) and once every month or so we'd get a fax to unlock a vehicle (usually a Ford for some reason) who's keyless entry fob's battery had died. We would arrive and they are holding their key in their hand, pressing the button to unlock it and they are getting frustrated the vehicle isn't unlocking. I would calmly ask to see their key, walk up to the door and stick it in the door's keyway and turn it. The look on their face was always priceless. I even had one lady confess she didn't know that was even possible.

But if the car has an alarm system and it's active, this doesn't help much. If I unlock my car with a physical key, there's a three-step process I need to do in order to disable the alarm and engine kill. If your owners didn't realize their keys would work, what's the likelihood they'd then remember everything else required before driving away?
Windows

Ask Slashdot: Preparing For Windows XP EOL? 423

Posted by timothy from the stock-up-like-y2k dept.
An anonymous reader writes "As most of us working in IT may know, Microsoft will stop supporting Windows XP on April 8th, 2014. Although this fact has been known for quite some time, XP is still relatively popular in companies and also enjoys noticeable marketshare for home users. Even ATMs are running XP and will continue to do so for some time. A lot of companies/users don't want to change because they see no additional benefit to do a costly upgrade, no reason to change a running system, and they may in some cases be right with their assumptions. So what is the best way to secure this remaining Windows XP systems? Installing the latest security patches, checking firewall status and user permissions etc. should be fairly obvious, as Microsoft Security Essentials may also not receive updates anymore, changing antivirus programs seems a sensible thing to do."

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