QUOTE(prolog @ Jul 20 2009, 01:59 PM)
Well according to physics, it requires
several feet of LEAD box to survive through Ven Allen Belt. The astronauts where wearing a millimeter shielding
If you're a physics student you would know how many inches of lead would stop a single beam of gamma ray.
gamma rays require 1 cm (0.4 inches) of lead to reduce their intensity by 50%.
You can do the math if the intensity is sooooooo high
Darling, I am a physics student. You do not need to stop gamma rays. Getting hit by gamma rays do not kill you, but they do increase the chance of you suffering down the line from cancer or something. You'd need a massive massive dose to actually kill you immediately.
And if you knew your physics better, you'd know that gamma rays aren't remotely close to being the main source of radiation in the Van Allen belts because the belts are formed mainly by trapped charged particles in the Earth's magnetic field, which photons would easily traverse. And again, the shielding need not protect from all radiation. Heck we are exposed to radiation every single day we walk on the surface of the planet, and heck even if we were 10 miles underground we'd still get some (albeit a lot less).
QUOTE
Oh yea?
How long was the Hiroshima blasted? Seconds? Minutes? Days? Months?
The radiation was blasted out in spherical movement in a few seconds and dispersed.
Cities away from Hiroshima blast also suffered from radiations
They suffered from weird diseases and dying for several generations.
skin cancer, weird diseases, mutation, loss of hair and endless others
Again, how long was the radiation dispersal?
It dispersed out at the speed of light yet it still managed to ionize the human DNA.
You have ignored the fact that the atomic bomb explosion had other sources of radiation, namely the highly unstable (and hence highly radioactive) daughter products, and concentrated exclusively on gamma rays only. Breathing in the 'radioactive wind' would probably have been the most dangerous thing to do in a nuclear explosion event, because the daughter products are still highly radioactive.
http://hyperphysics.phy-astr.gsu.edu/Hbase...fisfrag.html#c1http://avalon.law.yale.edu/20th_century/mp11.asp (talks about the rays emitted - but mainly concentrating on the close to explosion site effects, not further away
This post has been edited by bgeh: Jul 22 2009, 04:50 PM