Is there any way to create a gravitationless condition in Earth??

Question

What I wanted to know is whether there is any method by which gravitational force can be removed in a small area on the surface of the Earth. Like how does the astronauts prepare for the gravitation less condition in space.

I just want to thank everybody who answered. In just 10 min i got 6 answers..now that is fast.

Answer 1

under water.

Answer 2

Gravity cannot be reduced or eliminated at all other than by moving very far away from all masses (including the earth). The descriptions below regarding astronaut training are correct and they simulate the free-fall environment of earth orbit.

We will never be able to manipulate or eliminate gravity (create a horizontal gradient in a gravitational field) because it would violate the law of conservation of energy.

Answer 3

The only way known is to fall from a high place, in which case you can be weightless until you run into the ground. This is how NASA astronauts train. They use an airplane to repeatedly fly up and back down, and each time they get about 30 seconds of weightlessness followed by 30 seconds of 2G.

There is no known way to do it on the ground or for long time periods.

Answer 4

There is no way to eliminate gravity but there is a plane they train on called the vomit comet. It flies a parabola so that the people on board are in a gravity free environment for about 30 seconds each time they fly the pattern. The astronauts also train in a zero buoyancy tank of water. They are weighted down so they neither sink nor float to the surface.

Answer 5

I've watched on Discovery Channel that NASA trains its astronauts using a Boeing KC-135. The plane flies until to get a very high altitude and it starts to descend at the same speed than a human body has in a free fall. Consequently they simulate a gravitationless condition.

Answer 6

Astronauts in training ride in a large airplane which climbs sharply and then loops downward into a shallow dive. At the peak of the hyperbola a state of negative G's is achieved creating weightlessness. I am not aware that such a condition can be achieved on earth.

Answer 7

By flying in parbolas (climb-and-dive), a plane can simulate weightlessness during a dive and is one of the ways the astronauts train for space flight (and was the way Ron Howard was able to simulate weightlessness in the movie, "Apollo 13")...they also train in large swimming pools to simulate weightlessnes.

Answer 8

The Vomit Comet. There is no substance that will effectively "block" gravity.