about 0 Gravity?

Question

what really is 0 gravity?

Answer 1

zero mass. zero energy.

update...

for you who gave me a thumbs down... read here...
http://en.wikipedia.org/wiki/General_theory_of_relativity

Einstein theorized that gravity was a curvature of space time caused by the mass-energy and momentum content of said space time. So, to have zero gravity requires no mass-energy and no momemtum.

Answer 2

Often, the term 'zero gravity' or 'reduced gravity' is used to describe weightlessness, but these are scientifically inaccurate. A spacecraft and its contents are kept in orbit by the gravity of the body it orbits; that they are all subject to roughly the same gravity is the reason for the weightlessness. James Oberg explains:[1]

The myth that satellites remain in orbit because they have "escaped Earth's gravity" is perpetuated further (and falsely) by almost universal use of the zingy but physically nonsensical phrase "zero gravity" (and its techweenie cousin, "microgravity") to describe the free-falling conditions aboard orbiting space vehicles. Of course, this isn't true; gravity still exists in space. It keeps satellites from flying straight off into interstellar emptiness. What's missing is "weight," the resistance of gravitational attraction by an anchored structure or a counterforce. Satellites stay in space because of their tremendous horizontal speed, which allows them--while being unavoidably pulled toward Earth by gravity--to fall "over the horizon." The ground's curved withdrawal along the Earth's round surface offsets the satellites' fall toward the ground. Speed, not position or lack of gravity, keeps satellites up, and the failure to understand this fundamental concept means that many other things people "know" just ain't so.

Answer 3

This could be a philosophical question. Practically speaking, if you are in a frictionless environment, your motion can cancel gravity. A common example would be an orbiting space craft. The sun and planets still have a pull on the space craft. If the craft is coasting without thrust (which is usually the case) then the craft will "fall". An orbit is a special case of falling. You never land anywhere. Now if the craft were too massive then the gravity of the massive craft would have a faint gravitational pull.

Answer 4

Every mass experiences a gravitational attraction to every other mass in the universe. So there is no place you can go and not experience a gravitational field. At the center of mass of the universe (and a few other places) the net force is zero. Everywhere else has a net gravitational force in some direction. But if you are free to accelerate in response to the gravitational field, the principle of equivalence says there's no way you could tell the difference between free fall in a gravitational field, and no gravitational field. Either condition is properly called zero gravity.

Answer 5

the ingredient you're thinking approximately is what one in all the different respondents has noted as the 'Vomit Comet', the place an airplane makes a protracted climb and then is going into freefall, describing an upturned arc. the individuals interior the airplane are falling precisely the comparable because of the fact the airplane (and the air interior it), so which you do experience thoroughly weightless. that's achieved in any airplane, yet of direction the astronaut education airplane is a good sized one. Weightlessness in area is merely the comparable quite. you're nonetheless falling to Earth, as Earth's gravity remains sturdy at that distance, yet a physique like the area station is likewise shifting forwards at 17,000mph, so besides the actuality that it falls, it rather is moved forward so a procedures that it by no skill gets any closer to Earth (different than for the easy drag from the very tenuous little bit of ecosystem up there - every time the holiday visits, it provides it a touch strengthen to strengthen it decrease back up).

Answer 6

zero gravity is fictitious. there is gravity everywhere pulling on everything. there is gravity pulling you and Pluto together right now. the formula is G=mass(1) x mass(2) divided by the distance squared. this is then multiplied by g (not in caps). it is separate from G. this force is so small that it is often left out. even in outer space astronauts are in continuous free-fall so they experience "weightlessness" although it is always there.

Answer 7

Zero gravity means that all gravitational pulls on an object have been neutralized by motion or by another mass of equal gravitational pull.

Answer 8

A place where there is no gravity or very little such as space. referred to as 0-G but gravity waves are everywhere , though they are very weak.