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Mountains are generally cooler than African plains, so I'd say pretty much always.

Ah, just saw your reply. A shock wave can propagate through solids, liquids, gases... even electromagnetic fields. The asteroid exists in a (near) vacuum, sure, but the interior of the asteroid is not a vacuum.

Because tutors would no longer come to his house. You know, flying chairs and all.

The shockwave propagates through the asteroid itself.

The demo looked to be folding close to 180º, not 90º, and it seemed to be a fairly sharp fold. I doubt you'd ever want to fold it to a sharp crease, but it's an interesting capability. I'm not sure how useful it is yet, but... it's interesting. I see this as being also useful in that non-flat surfaces can be made into…

The Thunder Missile Launcher is only $35 on their site ([www.dreamcheeky.com]), not $50.

These would be vastly more interesting if installed with the shelves oriented vertically instead of horizontally.

Agreed.

I'm surprised that more students weren't forced to redesign toilet paper.

@Pope John Peeps II: If you follow the "a ton of clever ways" link, you'll see how to use encrypted TrueCrypt volumes. Obviously, yes, you'll want local storage as well, but it makes for an excellent additional safe site for essential data.

"The Elements" also uses the gyro, by the way - as you look at each element, twisting the phone turns the element on display. In my opinion, it turns it the wrong way, but still, pretty cool.