I don't think the following section really has anything to do with space being an ocean. It looks to me like it has more to do with space being portrayed in an unrealistic way. Am I missing something? I don't want to get too delete-happy until I'm sure.
Spaceships often have artificial gravity, even if there is no realistic explanation why or how. Depending on the show, it can be mild or strong.
Two reasons. In universe, it's just easier to work and live if stuff isn't going floaty all the time. And as far as production goes, zero G is hard to simulate and harder to simulate well.
Asteroids ALWAYS have artificial gravity, and it is almost always "Full" gravity. But can some times be explained away by the author.
People can be born in space or on the moon with no detrimental birth defects due to low gravity.
girlyboy
12:37:23 PM Jul 29th 2010 edited by girlyboy
You're right. I think all these points AND "ships have decks parallel to direction of travel" AND "ships have a noticeable "up" and "down"" can be combined into, basically, one point that sums all this up.
"There's an "up" and "down" in space, and space-ships are laid out accordingly, with decks parallel to their direction of travel (usually using Artificial Gravity), and a clear "top" and "bottom." This is so they can look and function more like naval ships."
Or... something like that, but better worded.
Otherwise it does indeed sound like Space Does Not Work That Way, which is much broader.