If you travel by starship to the center of the galaxy, such that
you arrive within...
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Physics
If you travel by starship to the center of the galaxy, such thatyou arrive within a subjective human lifespan, how much radiationdamage will you suffer from the interstellar “vacuum†(i.e., fromthe atoms in interstellar space)? Assume that special relativityholds and ignore the problems of accelerating and decelerating thespacecraft.
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In order to estimate the radiation damage we need to estimate the number of atoms in our path and the damage done by each atom The solar system rotates around the center of the galaxy at a radius of about 10kilosec or about 3104 light years Since 1 light year3108mspi107s1016mthe distance travelled is d31020m The typical density of interstellar space is 1 atom per cubic centimeterprimarily hydrogenBy comparison air at STP has a density of 61023
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