You need gravity to stay in bed, but you don't need it to sleep. In microgravity or
weightlessness, once you get used to the feeling of always falling, you can sleep
quite nicely. It's wise, though, to arrange some sort of restraint, just so you don't
go floating around the whole crew quarters every time you turn over. So the crew
of the bygone Space Shuttle, for example, or the International Space Station, just
slip into their bags, which are loosely tied or buckled to the wall/floor/ceiling, and
drift off.
Not only in space - gravity is universal. The force of gravity is affected by the distance, and by the masses involved.
No only when in earth's atmoshpere can the gravity be on.
There is no gravity in a space shuttle, unless its on the ground. The technology of "Gravity Coils" which generate artificial gravity has not been developed. Inducing a feeling of gravity like the old scifi movies "big wheel" space stations only works for very large structures
GRAVITY
Because space doesn't have an atmosphere. I disagree, it is due to the fact that most of Space is a vacuum and gravity only works between masses ad a vacuum is not a mass so depending on how far you are from mass, there is either very little gravity or none.
Yes, there is an object affected by only gravity. Stars and other floating space debris are only affected by gravity in space, as long as the objects do not touch each other.
You can only do that in outer space.
Not only in space - gravity is universal. The force of gravity is affected by the distance, and by the masses involved.
Saturn has precisely 100.0% of gravity on Saturn.
No only when in earth's atmoshpere can the gravity be on.
There is no gravity in a space shuttle, unless its on the ground. The technology of "Gravity Coils" which generate artificial gravity has not been developed. Inducing a feeling of gravity like the old scifi movies "big wheel" space stations only works for very large structures
To start off, there is indeed gravity in space. Objects in orbit only seem weightless because they are already in freefall. Gravity is the main forces that affects objects in space and can be used to change a trajectory. You can also change your speed and direction in space by firing rockets.
Yes, caused by gravity. (only works on the very large scale because gravity is very weak.)
they cant walk in space because there is no gravity they are just floating
No Up or down only depends on gravity. In space there is no gravity. Though if you push off from something then you will keep going for ever as there is nothing to slow or stop you.
GRAVITY
No. Only if the two components have the same density (specific gravity), which is highly unlikely.