What is an gravity? And how it works.

Every time you jump, you experience gravity. It pulls you back down to the ground. Without gravity,

you'd float off into the atmosphere -- along with all of the other matter on Earth.

It causes any two objects in the universe to be drawn to one another. We know that gravity

assisted in forming the universe, that it keeps the moon in orbit around the Earth, and that it can be

harnessed for more mundane applications like gravity-powered motors or gravity-powered lamps.

Gravitation is responsible for keeping the Earth and the other planets in their orbits around the Sun;

for keeping the Moon in its orbit around the Earth; for the formation of tides; for natural convection,

by which fluid flow occurs under the influence of a density gradient and gravity; for heating the

interiors of forming stars and planets to very high temperatures; and for various other phenomena

observed on Earth.

Uniontera number 2, hope it helps.

Existence is the time expressed by light itself. http://www.youtube.com/watch?v=MjmOw1Pnc…