A mechanism that floats/levitates in mid air. Is it possible?

Question

Now, Im not crazy to ask of a device that could bend the laws of physics in order to spin or create its own gravity in mid air.
For example: If you took a top (no real name for it, mabey spinner) and spun it, it would spin on it's tip and not fall down.
Would this involve a gyroscope in order to balnace?
Please answer with comments and conserns.
Thanks.

Now, Im not crazy to ask of a device that could bend the laws of physics in order to spin or create its own gravity in mid air.
For example: If you took a top (no real name for it, mabey spinner) and spun it, it would spin on it's tip and not fall down.
Would this involve a gyroscope in order to balnace?
Please answer with comments and conserns.
Thanks.
(Not like hovercraft, more like an object creating its own gravity.)

well mabey not magnets, but think of a ball spining.... that ball is perfectally balanced because its spinning.
its an interesting concept, and it might work if possible.

Answer 1

A dirigible (blimp) floats in air because its overall density is identical to that of air.

A space station can simulate gravity by rotating. The relativistic principle of equivalence says you can't tell the difference between that and gravity.

Any rotating object possesses gyroscopic stability.

These are well known, well established scientific principles.

Answer 2

I'm not a physicist, but I have taken a few physics classes, and I'd say no. An object definitely can't create enough gravity to counter the Earth's gravity. All matter creates its own gravity, but the amount of gravity it creates is a function of mass. To counter Earth's gravity, an object would have to be larger than the Earth. Also, gravity created by an object would pull other objects towards it (that's the idea of gravity, after all), so if it was near Earth and had as much gravity as Earth, or more, it would pull Earth toward it, not levitate.
Gravity is also a function of distance, however, so there are many objects that "levitate" because they are so far away from Earth that they are not affected by its gravity, for instance, other galaxies. Satellites, also, are affected by the Earth's gravity but don't fall to Earth (at least not for a while).

Any object near Earth is going to have the force of gravity pulling on it, so in order to not fall, there would have to be another force pushing up on the object, like a magnetic field, air blowing at it, etc. Spinning wouldn't do it; gyroscopes spin without falling down, but they are just balancing; they're still touching the Earth.

Answer 3

Many. From time immemorial the birds used to hover. The same technique is used by the modern aircrafts. A piece of sodium runs around the surface of water on an air (sorry, on hydrogen cushion)movement of ice puck on a carbon di oxide cushion. Super conductivity led to the invention of the mag lev train etc. The helicopter, the war plane 'sea hurrier jet" etc are the modern and most sophisticated machinery whican hover hours together.

Answer 4

There's the hovercraft.

Answer 5

mag lev train?

Answer 6

...Hovercraft?