Q&A

Can gravity be negated?

Can gravity be negated?

Under general relativity, anti-gravity is impossible except under contrived circumstances.

Does gravity work like a magnet?

No. Gravity doesn’t work like a magnet. Albert Einstein discovered that a free falling object will feel no force pulling it. It will be the same as an object at rest if you ignore air resistance.

Can magnets manipulate gravity?

Because an electromagnetic field contains energy, momentum, and so on, it will produce a gravitational field of its own. This gravitational field is in addition to that produced by the matter of the charge or magnet.

Can gravity be manipulated?

In a sense, we can manipulate gravity just as well as we can manipulate EM fields. Take the nearest object with mass, and wave it around – congratulations, you just broadcasted a gravitational wave.

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How can we oppose gravity?

First, something can provide a force opposing that of gravity. Such forces are known–for instance, objects can be levitated using magnetic or electrostatic repulsion.

Can we create gravity?

Artificial gravity can be created using a centripetal force. In accordance with Newton’s Third Law the value of little g (the perceived “downward” acceleration) is equal in magnitude and opposite in direction to the centripetal acceleration.

Which is stronger gravity or magnetism?

To be exact, gravity is 137-times stronger than magnetism *at the planetary level*. There is, of course, an exception to this rule: Electromagnetism is stronger at the atomic and sub-atomic levels, so things are not as obvious as they might initially seem.

Can we create an artificial planet?

An artificial planet could potentially be created by an advanced civilization. Even if our current technology is unable to create such a thing, we can foresee the benefits of it.

Why does gravity only pull us towards the Earth?

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No matter what they are made of, both objects get pulled towards each other just because they have mass. The reason it seems like gravity only pulls you towards the earth is because the earth is so big that the pull from you on it isn’t enough to do much to its motion.

Do objects with mass exert a gravitational pull on other objects?

It is true that all objects which have mass exert a gravitational pull on other objects, but unless the mass is very large (like the earth) it has little effect. The people on the space station will not change the artificial gravity on the space station just like they do not effect the gravity while they are on Earth.

Do you exert the same gravitational force on Earth as yourself?

You exert the same gravitational force on Earth that it does on you. But because Earth is so much more massive than you, your force doesn’t really have an effect on our planet. Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth.

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Do magnets pull or pull objects together?

Magnetism can either pull the two objects together or push them apart, depending on which way the magnets point. Most importantly, it depends on what is going on with the electrons in the material, since each electron is like a tiny magnet itself.