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[Dvice]Your next hard drive could be made of depleted uranium - Page 5

post #41 of 106
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post #42 of 106
Quote:
Originally Posted by Cryraxz View Post
Its only to CREATE the molecule...it doesnt need to be stored at that temp...
Wrong, it needs 2 degrees above absolute zero (2k) to hold its magnetic polarity (watch video in thread).
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post #43 of 106
U-238 isn't particularly radioactive, but its fission products are. I forget the chains, but U-238 creates a number of alpha and gamma emitters when it fissions, and these lead what would otherwise be a very safe and useful material to have high enough radiation that OHSA is concerned about it and advising the US armed forces to scale back their use of depleted uranium.
post #44 of 106
Quote:
Originally Posted by Phaedrus2129 View Post
U-238 isn't particularly radioactive, but its fission products are. I forget the chains, but U-238 creates a number of alpha and gamma emitters when it fissions, and these lead what would otherwise be a very safe and useful material to have high enough radiation that OHSA is concerned about it and advising the US armed forces to scale back their use of depleted uranium.
Exactly. Theres lots of videos on youtube of soldiers that were exposed to the depleted uranium rounds, come back to the states, had kids with severe birth defects. Theyre trying to attribute it to depeleted uranium exposure.

Just because its depleted 99.99% doesnt mean its not harmful or still radioactive.

Ill pass on uranium drives, thanks.
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post #45 of 106
Quote:
Originally Posted by Alfwich View Post
Wrong, it needs 2 degrees above absolute zero (2k) to hold its magnetic polarity (watch video in thread).
Guess everybody in the future is gonna have custom, auto refilling better-than-LNO2 setups (im not that good at chemistry)
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post #46 of 106
Quote:
Originally Posted by darthjoe229 View Post
Guess everybody in the future is gonna have custom, auto refilling better-than-LNO2 setups (im not that good at chemistry)
I'm not so good at chemistry either, but it seems like this is really just a proof of concept...if they can synthesize a compound like this but at a much much higher temperature, in my opinion this could really begin a major revolution of all electronics, not just computers...then again, going from absolute zero to even LNO2 temperatures is a huge feat, let alone room temperature and above...
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post #47 of 106
Quote:
Originally Posted by BlackOmega View Post
Exactly. Theres lots of videos on youtube of soldiers that were exposed to the depleted uranium rounds, come back to the states, had kids with severe birth defects. Theyre trying to attribute it to depeleted uranium exposure.

Just because its depleted 99.99% doesnt mean its not harmful or still radioactive.

Ill pass on uranium drives, thanks.
Well even then, it's a special case. When you fire a U-238 bullet, or a bullet hits U-238 armor, that U-238 is partially powdered and aerosolized. That aerosolized uranium can then be inhaled.

Now remember, U-238 has a very long half-life, and it doesn't release much radiation when it fissions. But of the several fission chains it can follow, nearly all of them result in the creation of alpha particles, which are big helium nuclei which bump around causing all sorts of damage, tearing apart proteins, interfering with chemical reactions, creating free radicals, etc.

Incidentally, U-238 exposure would not cause birth defects. There's no way for it to get to the reproductive organs. However, it will cause issues with the lungs, throat, blood, and sometimes the brain.

However, alpha particles can be blocked by something as thin as a piece of paper. They can't even penetrate skin, which is why you have to inhale it to suffer ill effects. Gamma and beta radiation might be dangerous, but U-238's fission products aren't really big gamma or beta emitters, though there is some. It's mainly the alpha radiation that makes U-238 dangerous, and it's only dangerous if inhaled, which only really happens in a combat application.
Edited by Phaedrus2129 - 5/4/11 at 11:43am
post #48 of 106
It brings a new meaning to the term "Volatile Storage".
post #49 of 106
Nice...drives that weight 20lbs and can stop large caliber rounds.
post #50 of 106
Quote:
Originally Posted by Reflux View Post
M1A1 & M1A2 both run steel encased depleted uranium.




Maybe, unless you can afford to melt it down I suppose
I used to work around these things...it is just the track skirts that are DU. Acutally...only the center skirt pannels.
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