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Comment Re:Does anybody realize (Score 5, Informative) 44

* Batteries have far lower energy density than gasoline (and even most explosives).

* Batteries have a maximum discharge rate, which means they can't release all their energy instantaneously under practical conditions. In other words, instead of detonating like a firecracker, they tend to just spray fire and sparks for a few minutes like a fountain.

* "Real" explosives are not hard to acquire or manufacture, and bags of fertilizer and cans of fuel oil cost far less than an equivalent mass of Li-Ion batteries.

Comment Re:What's so special in walls built in garage? (Score 4, Funny) 63

I think the writer is saying on average people are more likely to build with plywood or drywall in their garage instead of less permissive materials like brick, concrete, or metal.

So, statistically speaking, a radar system is more effective against walls built in a garage than walls built outside of a garage.

As usual, the article may provide clarification, but I've found I can avoid the trouble of reading them by simply making wild assumptions.

Comment Re:Web sites (Score 3, Informative) 277

http://www.techlicious.com/gui...

http://gmic2012.greatwallclub.... (I imagine NQ Mobile's Vault is the 'Vault' listed, NQ published a press release about it)

I can't find a free copy of PC Magazine's 2012 best apps, but given the others I have little reason to doubt it. The average reviewer has nary a clue about cryptography, and from an end user standpoint, the app seems well made and has several clever features. It would be easy to assume the app lives up to its claims.

Mind you, it still seems a useful app just for its ability to hide content from casual snoops (the app can even hide its presence on the device), though it is quite overpriced and likely to disappear after this entirely deserved PR disaster.

Comment Re:How are these related? (Score 5, Informative) 201

No, he was pointing out that rewarding teachers for high test scores is likely to result not in better teaching but more cheating and manipulation of the results.

We've been obsessing over test scores for a while now and it doesn't seem to improve the quality of education.

Comment Re:Amazing! (Score 5, Informative) 106

It has the power to go as fast as the Bugatti, but (apparently) not the gearing. At 161mph it'll be using a heck of a lot less than 1MW, so the battery should last much longer than 3m.

The extra power *will* give it crazy acceleration even up steep inclines, which is far more useful on Pike's Peak than pure top speed.

Comment Re:Why use secrete service agents (Score 1) 175

The 'real' White House has a lot of valuable antiques (including the building itself), a large number of regular employees, and a steady stream of guests and visiting dignitaries.
Even a simulated terrorist attack could get messy, and they'd have the inconvenience of having to schedule around the President and staff's activities.
A staging site makes perfect sense here.

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