what happens if there is no gravity ?

Question

For me, i can imagine that each and everyone of us will be floating in the air. The things around us will also react the way we do. But really want to know how it feels when there is no gravity on earth or try it out in the moon if you or i have the chance.

Answer 1

what happens if there is no gravity ?
The Space program would have a whole new direction !!

Answer 2

We could not be on Earth without gravity, because Earth is held together by gravity. So first everything would float away, including the air we breathe, so we would need suits. If we started to float away from other things (pieces of Earth, other people) we would need a means of propulsion to get back to it.

I can't imagine more. Gravitation is an inherent property of matter, so we can't describe interactions between an area without this force and an area with this force. If there were no gravity in the entire universe, prepare to scratch all physics and start over with fresh observations.

Answer 3

There are several wrong answers given here, such as it feels like falling. Falling is the experience of gravity pulling you without the resistance that normally keeps you standing. The absence of gravity causes floating, which is in some ways like floating in water. This is basic physics. The wrong answers is what you get from those who have never had the experience and don't know basic science. It's ok to say "I think " and be wrong, but when they say "It is " when they don't know what they are saying, that is wrong.

Answer 4

i think swimming underwater is a close relation to no gravity, (with the exception of you being able to move, because in space there is no air for you to push/pull against). otherwise i never been in space.

Answer 5

Well, if you're used to living in a gravitational field, suddenly being "without gravity" would make you feel as if you're falling.

Answer 6

For the record, I hereby retain rights to the science fiction story I am about to outline. I first posted it 12-18-2006.

God decides that the universe has had enough time to operate under the physical laws He created along with the universe, time, and space. At 3pm Pacific Standard Time (earth), January 3, 2014, the gravitational force every mass now experiences with every other mass will cease to exist. All other physical laws will continue unchanged. Every mass will continue to move and accelerate according to the sum of all forces on it. One of those forces will suddenly be reduced to zero.

The motion of celestial bodies is affected only by gravity. Since matter is, on average, electrically neutral, the electrostatic force at a distance is zero. Heavenly bodies will cease orbital movement, and will instead continue to move in whatever direction they were moving at that instant and continue in that direction forever, until they collide with something. The overall gravitational attraction of the universe will cease restraining the expansion of the universe, and it will instead continue to expand at whatever rate it was expanding at the time. The Hubble Constant suddenly becomes meaningless.

Closer to home, earth would cease orbiting the sun and just continue on a linear tangent path. In a year, its distance from the sun would increase by about the circumference of its orbit, about 4 times its present distance. Incident solar energy would drop by a factor of two to the fourth power, or 16. Solar power and all its direct derivatives (wind, hydro) would become useless. Hydro had already become useless, since there's no gravity to draw the water through the turbines. Wind was also useless, since the atmosphere drifted away from earth with no gravity to hold it in place. We still have nuclear and some geothermal, but we stopped using fossil fuels, since our remaining oxygen is far too precious to waste on burning.

We have some time to plan and prepare, so human society begins to deemphasize its more trivial pursuits and works toward building self-contained, self-sustainable colonies, with domes to retain atmosphere, and everything tied down so it won't drift away. Uranium mining accelerates, as does construction and deployment of nuclear reactors. Geologists devote themselves to figuring out whether the earth will hold together without gravity, of whether it will break apart. Physicists work furiously to calculate all the implications. How long will the sun sustain its fusion reaction without gravity? Raising animals for food is phased out, and agriculture concentrates on maximum grain production and packaging it for maximum longevity, like granola bars in sealed packages.

People realize that there is no way they can build enough infrastructure to sustain earth's present population, much less continued population growth. They realize that decisions will need to be made about who lives and who dies. Suddenly, the value of individual contribution to society will determine not only their economic wealth, but their very life.

Some will realize that their ignorance and rejection of God was foolish and short-sighted, will repent, and will devote themselves to knowing God and obeying Him, and following His direction. Others will succumb to the "eat, drink, and be merry; for tomorrow we die" philosophy. It will be the best of times. It will be the worst of times.

Answer 7

I imagine no gravity would feel similar to being underwater.

Answer 8

all the things start to float in the air .even the heavest thing in the world will start floating

Answer 9

Or ... visit your favorite roller coaster, with the fastest drop.

Weightlessness fells like your falling -- not floating!

Answer 10

If there is no gravity there is no shape.