Newton proved this. Because if you raise an object and remove the support, it will fall towards the Earth (down). That is because the Earth has the largest mass nearby. That is gravitational attraction.
We know that gravity exists because we walk on our two feet and we do not float around in the air.
Gravity holds the planet together as a 'ball' and you on it. It also makes things fall. We can measure this so we know the force of gravity on earth and can calculate it for other planets and stars.
We can know through two ways. First, we know the moon's mass and radius. From there it is fairly simple to calculate surface gravity. Second, we have sent probes and people to the moon, making it possible to actually measure the strength of gravity.
The simplest and best answer to that question is: -- Without gravity, there would be no orbits. -- Once you completely understand gravity, you can figure out everything there is to know about orbits, because it all comes from the behavior of gravity.
It is a common misconception that gravity does not exist in space. The truth is that in space, gravity is the most important force in governing the movement of large objects. You cannot plot a trajectory in space without understanding gravity.
We know that gravity exists because we walk on our two feet and we do not float around in the air.
You're on to it! Gravity appears to be a property of mass. No mass - no gravity. But exactly what gravity is we don't yet know.
Gravity is affecting everyone I mean we are all on the ground arn't we??
i only know 1 issue, gravity, nobody know why there is so little gravity
Gravity holds the planet together as a 'ball' and you on it. It also makes things fall. We can measure this so we know the force of gravity on earth and can calculate it for other planets and stars.
Not as far as i know.
How gravity works.
you will ever know.
ya mum.
As far as we know presently, it is utterly impossible to "end" gravity; it is a fundamental property of mass. Anything that has mass has gravity.
There was no god of gravity since the Greeks did not know about gravity. Atlas kind of acted like gravity by holding the earth up. He was not a god, but a Titan.
We can know through two ways. First, we know the moon's mass and radius. From there it is fairly simple to calculate surface gravity. Second, we have sent probes and people to the moon, making it possible to actually measure the strength of gravity.