Near-topic: G forces

This is all coming from memory, but it may help others to provide correct
facts <G>.

The record for G`s that a human body can stand is in the region of 50 G`s
(yes, fifty). This was proven by a USAF doctor who straped into a rocket
propelled railchair and then rode said chair into a water bath to slow it
down. The G`s he experianced peaked at 50 G`s momentarally, but did suffer for
his pains (tempory blindness due to detached retenas was one). Please note,
the G`s peaked at 50 G`s only temparly.

As for suviving continus G`s, if you are lying down, you can take high G`s for
longer and higher G`s than fighter pilots, who do the grunting to prevent the
blood pooling in the extremities. If you are lying down, the heart only has to
pump the blood along the same plain, instead of trying to pump it against the
G`s you are experancing.

As for how long to travel intersteller distances, I remember someone worked
out that if a ship left earth and accelerated at a continus 1g halfway there,
and decellerated same at the halfway point, a voyage to alpha centauri would
take 10 years with a velocity of 0.5 C at turnover (I think, it was a long
time ago, might have been on fifth C).