Re: Physisist in the house ?
Originally Posted by
swimfeeders
->
Hi
Gravity has been fully explained in this thread.
The effect of Gravity is dependant not only only the mass of the object, but also the distance from it.
If the distance is doubled, the force of attraction is only one quarter, not one half and so on.
An object entering the solar system close to Earth would be much more affected by the Earth than by Jupiter, which. although much more massive, would not have the greater gravitational influence due to distance.
That is why we can have satellites.
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Bakerman
You are explaining what gravity
does. I already know that. I have known that since I was a child.
My question is, "I want to know what gravity is and why it works and what is it made up of"? Yes, yes I know it is a force. Please don't explain the different kinds of forces. I already know that if I release a baseball from my hand it always goes down, never up.
If I gradually move a magnet closer and closer to a pin, eventually the pin will, in a fraction of a second, move to and attach itself to the magnet.
The earth does not hold an object to the earths surface because of magnetism. Magnetism works only on metallic objects not organic objects. I could hold a strong magnet against a carrot but the carrot would NEVER stick to the magnet. Yet if I dropped a carrot from my hand it would fall to earth.
I already know that any two objects in the universe have an attraction for each other. WHY ?