Interstellar space is an empty place. For every cubic centimetre, there are fewer than two hydrogen atoms, on average, compared with 30 billion billion atoms of air here on Earth.[...]
Special relativity describes how space and time are distorted for observers travelling at different speeds. For the crew of a spacecraft ramping up to light speed, interstellar space would appear highly compressed, thereby increasing the number of hydrogen atoms hitting the craft.[...]
The spacecraft's hull would provide little protection. Edelstein calculates that a 10-centimetre-thick layer of aluminium would absorb less than 1 per cent of the energy. Because hydrogen atoms have a proton for a nucleus, this leaves the crew exposed to dangerous ionising radiation that breaks chemical bonds and damages DNA. "Hydrogen atoms are unavoidable space mines," says Edelstein.
Well, duh, Edelstein. That's what the deflector dish is for.
Sheesh. When I read articles like this, I can only conclude that the peer-review system is completely broken.
via Popular Science
5 comments:
Seriously nice geek cred there, John. Wish you were in MY sci-fi club back in school.
Peer Review is all an elaborate hoax to make proofreading seem like a laudable profession.
http://www.lesjones.com/2010/02/17/how-bad-is-the-economy/
Whoops, that should have had this link, but that was a good one too.
http://chicagoboyz.net/archives/10481.html
I used to read ChicagoBoyz daily. But a few months ago, I left a comment wherein I strongly, but politely, disagreed with Lexington. He deleted it. I first thought that it was a glitch, so I re-wrote my comment. Lexington deleted it again.
I emailed the webmaster and asked for an explanation. He said that my comment had been deleted, but wouldn't explain why.
So I stopped reading ChicagoBoyz. I really liked that blog, but I won't go if I'm not welcome.
Thanks, JC. You had a sci-fi club in high school? All I had was French Club.
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