2006-11-03 18:42:59 · 11 answers · asked by Otada 1 in Science & Mathematics ➔ Astronomy & Space
Your right - gravity is ludicrously weak. The force of gravity of the entire earth on your body is held back by the electrostatic force of a single layer of atoms in your shoes. Gravity is weaker by many orders of magnitude than every other force in the universe.
And its a good job it is. Because otherwise we would not exist.
However, we have no theory as yet that explains the relative magnitude of forces. It is considered one of the failings of the theories of physics - the parameters that determine the magnitude of the forces simply have to be fed into the equations from observation.
2006-11-03 21:43:06 · answer #1 · answered by Anonymous · 3⤊ 0⤋
It's not so weak. Consider a galaxy. What keeps it spinning round, instead of the stars flying off in all directions? That is gravity, exerting itself across thousands of light years.
2006-11-03 18:45:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I don't think someone who lived on Jupiter would ask that sort of question. Gravity is strong, very strong. It can crush things. Look at the Sun. That's Gravity.
2006-11-03 18:47:45 · answer #3 · answered by The Bible (gives Hope) 6 · 0⤊ 0⤋
I believe some work in string theory is exploring the possibility that gravitons carrying the force are leaking out of our universe into adjoining universes. Shows that others are also bothered by the minuscule strength of gravity.
2006-11-03 22:48:32 · answer #4 · answered by SAN 5 · 0⤊ 0⤋
Why do you say weak ? It not only holds you and everything else onto this planet but also holds the planetary system, the galaxies, and, in fact, the whole universe together. Check out what would happen if you ever approached a black hole - I don't think you would describe the force involved as being weak.
2006-11-03 18:49:17 · answer #5 · answered by Anonymous · 1⤊ 1⤋
The earth's gravity is not weak. Infact the sun attracts the earth with his gravitational pull. If eatrh's gravity is weak it should fall into the sun's gravity and collapse. Its not happening because the gravitational pull of the sun is balanced by that of the earth
2006-11-03 21:55:20 · answer #6 · answered by vineel 1 · 0⤊ 2⤋
gravity's 'weakness' is only relative. compared to the natural forces in the surrounding universe gravity is just as strong as need be.
2006-11-03 18:47:50 · answer #7 · answered by Anonymous · 1⤊ 0⤋
Weak? It holds the atmosphere around the earth. If it was weak we wouldn't be here.
2006-11-03 20:02:57 · answer #8 · answered by ODDONE 2 · 0⤊ 1⤋
I wouldnt call it weak. Can you lift 100 kilograms ?
2006-11-03 18:46:44 · answer #9 · answered by gjmb1960 7 · 0⤊ 0⤋
Because if it were stronger you'd end up with a universe full of black holes instead of stars.
2006-11-03 18:46:51 · answer #10 · answered by Roman Soldier 5 · 1⤊ 0⤋