Magnetosphere in Sci and Sci Fi
On Dec 17, 9:12 pm, nonsense wrote:
BURT wrote:
The magnetosphere of the earth acts as a force field shield
deflecting dangerous rays.
Tell us about cosmic rays.
Interstellar space is postulated to have a large quantity of very high-
energy particles known as cosmic rays. The solar wind form our sun
reduces the number of cosmic rays to a much lower level. The earth's
magnetic field creates these Van Allen Belts which shields and traps
the solar wind and other harmful particles. Below the Van Allen
Belts, the radiation is about 10 RADs per year. It is not lethal but
considered health risk. The earth's atmosphere with the ionosphere
further attenuates the radiation level down to such benign level as
seen on the surface of the earth.
How did the Apollo astronauts survive the radiation form solar wind
and cosmic rays without the protected environment of the Van Allen
Belts? They probably will survive with minimal shielding in the
command module for a week and a half, but coming back on earth, they
should be very ill and eventually demise in a few months.
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