News for hackers. Stuff that matters.

A comment on Mars likely to have enough oxygen to support life: study. Parent comment

Re:Mars likely to have enough oxygen to support life: study by raducu on Tuesday October 23, 2018 @05:37AM (#18281998)
What's wrong with low G tolerance for interstellar travel? If speed of light is ~310^8, 1G ~ 10m/s^2, you would need (ignoring reletivistic effects) 310^7 seconds to reach the speed of light. There are 86400 seconds in a day, so you would need ~347 days to reach the speed of light if you were accelerating at 1G, were it not for relativistic effects.
[ Parent | on HN ]
Re:Mars likely to have enough oxygen to support life: study by ianai on Tuesday October 23, 2018 @06:48AM (#18282272)
Except relativistic effects are at play and iirc we don’t have “permanent” acceleration tech.
[ Parent | on HN ]
Re:Mars likely to have enough oxygen to support life: study by lmm on Tuesday October 23, 2018 @07:48AM (#18282537)
> iirc we don’t have “permanent” acceleration tech

Which is exactly why low G-tolerance doesn't matter. You have a limited amount of delta-V, whether you apply it all in one go or spread out over a year makes little difference given the timescales that are already involved in interstellar travel.

[ Parent | on HN ]