how can i create Zero Gravity inside a plane?

Question

i saw on a tv people floating inside a plane.like in this video
http://youtube.com/watch?v=6Jzb2qUFZfY
How was that done?

Answer 1

The plane follows a parabolic flight path. That is it makes a steep climb to altitude, then it makes a steep dive towards the ground. This puts the plane and its occupants essentially in a free-fall state. Because they are all falling towards the ground at the same rate they appear weightless inside the plane. The force of gravity that would normally be holding them on the floor of the cabin is exactly countered by the speed of descent, so the floor is moving away from the people at the same rate gravity is pulling them towards it. That means if they jump a little they don't come down to the floor, so they can float around inside.

There are two things to be aware of. The first is that this is not really 'zero gravity'. The plane and its occupants are still just as much in normal gravity as they were before they left the ground. It is only a relative effect viewed from inside the plane. An outside observer would see the whole lot falling under Earth-normal gravity. The second, rather more significant, is that this effect can only be sustained for up to 30 seconds because otherwise the plane will run into the ground! A normal flight plan will see the plane pull up into another steep climb, thus giving the occupants several short sessions of freefall weightless experience.

Astronauts used this to train for weightless activities in space. Most of them reported that working in space was a lot easier and more pleasant because once you were weightless you stayed that way. In the training aircraft the thirty seconds of weightlessness was suddenly and jarringly followed by a force of twice normal gravity against the floor of the plane as it climbed again. The regular cycle of weightlessness and 2-g acceleration took its toll on the astronauts and support personnel, and this earned the plane the nickname 'the Vomit Comet'!

Answer 2

The plane is flown on a roller coaster like path, called a parabolic trajectory. Basically, the plane pulls up sharply, and when it is zooming up as fast as it can, the pilot gradually lowers the nose at just the right rate to match the path a free falling object would take. Eventually the plane ends up in a steep dive and you have to pull up to keep from crashing, but you can get a few seconds of weightlessness this way. The faster the plane can fly, the more seconds you can be weightless. At the speed of a typical private plane, it is maybe 5 seconds. At airliner speeds it is about 25 seconds. The company in the source will take you on such a ride in a specially modified airliner for a little less than $4,000.

Answer 3

The plane must "dive" (head towards the ground) with the same acceleration as would be produced by the Earth's gravity.

This is, of course, only done for short periods, as eventually the aircraft would collide with the Earth's surface (land or water), and the ride would end rather abrubtly!

Since the objects inside the plane are actually falling at the same rate as the plane is decending, the effect for the passengers on board is to experience free-fall, or what seems like "Zero Gravity".

There is, of course, still gravity (the Earth's), but it becomes a matter of relative motion between the passenger and the plane.

Answer 4

The old professor says: Sure you can do it as those others have already told you. Contrary to popular belief, gravity in the newtonian sense is an acceleration toward the center of a mass, but according to Einstein it can be substituted for by an inertial force which is identical to gravity. Check out the relativistic concept of "equivalence".

There is no such thing as anyplace in the universe where gravity is "zero". Since the moon, sun, planets, stars, etc. are always tugging on you, the best you can do is offset them by trying to make all these gravity forces come up with a vector of near "zero" The preferred term for space travelers is now "low gravity" conditions.

Answer 5

NASA's KC-one hundred thirty 5 decreased Gravity plane is depending at Lyndon B. Johnson area middle and affectionately suggested as the "vomit comet". it really is an plane that NASA flies in 6 mile lengthy parabolic arcs, first hiking in altitude, then falling, in the kind of way that the flight direction and velocity correspond to that of an merchandise without propulsion and under no circumstances experiencing air friction. it really is realised through propulsion and guidance such that air friction is compensated and under no circumstances something else. the outcome is that human beings interior are literally not pushed in direction of the bottom or the different side of the plane, i.e. they are quickly weightless, every time for a era of 25 seconds. regularly one flight lasts about 2 hours, in which 40 parabolas are flown.

Answer 6

If plane moves to down as the speed of gravity every thing in the plane will be weight less. This means zero gravity.
If plane moves dawn faster than the gravity , you 'll stick to ceiling of plane.

Answer 7

The plane is brought up to maximum speed.
The pilot pulls the nose up to a steep angle,then noses it over,you become weightless as soon as the nose is forced down
Though you are climbing you will remain weightless all through the arc until the plane must be pulled out of the dive as it's speed builds..

Answer 8

You have to fly the plane up and down like a rollercoaster. A steep ascent gets you high enough, and then the fast, near nosedive creates the 0G or weightless feeling.

Answer 9

NASA has a modified KC-130 that flies in huge parabolic arcs to simulate weightlessness for thirty seconds or so... I hear they are letting Stephen Hawking take a ride. Its nickname is the Vomit Comet... cute huh?

Answer 10

the plane goes up really hi, then the plane sorta "falls" and without the air rushing past u then u get zero g