posted on Feb, 13 2013 @ 07:19 PM
Originally posted by kiwasabi
Really? Because the space shuttle astronauts from 1998 would disagree with you. And they were BELOW the radiation belt. But feel free to provide
evidence of your lofty claim.
First off, the 1998 mission was much higher than their normal mission altitudes. They were in the lowest bands of the belts at times, because the
belts aren't uniform. Secondly, the shuttle wasn't shielded like Apollo was, because it was designed to operate below the belts, and not go through
them. It's shielded, but not like in the Apollo missions.
I've found this to be an accurate and great primer on radiation, whether you like this page or not.
With any kind of shielding, you get bremsstrahlung, which is when the incoming particle hits another particle, and "spalls" and emits radiation from
both the source, and the impacted particle. Which then hits another particle, and another all emitting radiation. The denser the material and the
higher energy of the incoming particles, the more impacts you get, so the more radiation you see emitted from the shielding.
Originally posted by Zaphod58
You can't compare the shuttle with Apollo. Apollo took a matter of hours to get through the Belts, the shuttle was orbiting in the lowest bands of
them for days. They are nothing alike.
Sure I can. The space shuttle is actually BELOW the radiation belt, so it isn't even directly affected by it. "Skeptics" said the same thing
about comparing the B-52 that crashed into the Empire State Building and and the events of 9/11. Because one event had the effect that matched the
physics they wanted us to believe, and the other matched reality.
Apollo would've had direct exposure to huge amounts of radiation, way more than the space shuttle would've had. Time is certainly a factor, but they
would've faced many times more radiation per second than the space shuttle would have.
The shuttle is usually under the Belts, but the 1998 mission put them in the lower bands of them. So they were exposed to more than usual.
It was a B-25, and that was comparing apples to apples. Comparing Apollo to the shuttle is apples to oranges. Apollo was designed to go through the
belts, the shuttle was designed to stay under them.