The ISS weighs 440t and to get 1g there by acceleration you'd need to constantly apply a force of ~4.4MN (meganewton), that's a tenth of a Saturn 5 at lift-off.

The ISS weighs 440t and to get 1g there by acceleration you'd need to constantly apply a force of ~4.4MN (meganewton), that's a tenth of a Saturn 5 at lift-off. Not sure we can do that for an extended amount of time (read: a few hours) without bringing along lots of fuel That or we invent that special drive of that dead Martian.