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Most people grow when they sleep. Then, their vertebrae compress during the day and they go to bed shorter. While horozontal the discs uncompress, resulting in "growth." Astronauts get about 2 inches taller in low gravity, but for us earthbound folk it is less, maybe 1-2 cm. Here is a link I found.

Yes but, that doesn't look like it'd cost much money :-)

Should have lot's left over for Kliper. Wonder what they'll build that out of?

Nothing really new there, NASA astro-nuts had teeth-cleaning gum for years.

Here's a site talking about the use of a broomstick to detect a hydrogen fire.

I still don't understand what your're trying to argue here though, Rei. Ok, hydrogen is flamable, and may ignite easily under high pressure. However, you started out by claiming it was "explosive", and thats the part where you still haven't made any sense.

If high-pressure hydrogen is so explosive, why is don't these tanks that NASA used to check with a broomstick explode? In fact, the higher the pressure, the less likely an explosion is possible, because the oxygen from the air can't get into the tank to mix with the rest of the hydrogen, only the hydrogen coming out of the leak could possibly explode, except that its already burning, there is no time for mixing large amounts of oxygen with large amounts of hydrogen to create the situation where a powerful explosion is even possible.

You haven't responded to the links given showing that hydrogen cars are much less likely to be dangerous because the hydrogen comes out fast, goes up fast, and burns fast. Flamable, yes, explosive, no. I've seen the videos of those demonstrations before. Gasoline is far more dangerous because it will stick around and continue to burn for awhile, long after the hydrogen has all burned up and/or dissipated.

So which argument are you making? That hydrogen is "dangerous" because its so flamable? Or hydrogen is dangerous because its so explosive? If its the former, then I won't argue because I don't see the point, lots of things we use today are flamable, but if its the latter, then you still haven't made a case for that yet.

So I think a starting point me be with This guy. Here also. I don't know if they would release any info to you about what items you may find tolerable but it might be worth a shot.

How many kids would be studying their asses off if they knew they could pilot a mecha?

Also space rockets only work inside the atmosphere, where there is air to push against. There was a special on Fox all about it.

Umm...

The bell-shaped nozzle of a rocket engine is designed for a particular external air pressure (due to expansion of the exhaust gases), but rockets most definitely do work in space. Newton's Third Law, and all that.

According to this link, Anarchofascist is right and we're wrong. And if it's on the web, then it must be true! The iris is the colored part of the eye, around the black pupil. Your point is probably correct, that it'd be best to target the pupil...

But I'm still wrong. The iris wouldn't do at all.

So... try being correct when you correct someone's pedantic pupil correction urge. Nur.

Jetliner - dual use the engines, or take off from a larger moving craft. Better yet, boost on the ground from a mag-sled like this.

Missiles - again, dual mode engine, or use a boost stage, sure.

Aero heating - Use plasma 'magic' to heat air in front of the vehicle and thin it out, like this . Rockets are expensive, why boost so high?
And yes, I am a current rocket scientist working on hypersonic drag reduction and plasma steering.