Hawaii Sportsman
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Gravitation

Go down

Gravitation Empty Gravitation

Post  taixyz1992 Thu Dec 30, 2010 9:38 am

Gravitation, or gravity, is a natural phenomenon in which objects with mass attract one another. In everyday life, gravitation is most familiar as the agent that gives weight to objects with mass and causes them to fall to the ground when dropped. Gravitation causes dispersed matter to coalesce, thus accounting for the existence of the Earth, the Sun, and most of the macroscopic objects in the universe. 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.

Gravitation is one of the four fundamental interactions of nature, along with the strong force, electromagnetism and the weak force. Modern physics describes gravitation using the general theory of relativity, in which gravitation is a consequence of the curvature of spacetime which governs the motion of inertial objects. The simpler Newton's law of universal gravitation provides an accurate approximation for most calculations.

pcb layout services
cheap web Maintenance

taixyz1992
big daddy boar
big daddy boar

Posts : 242
Join date : 2010-11-03

Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum