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It's a kind of rare point of view in which the energy it's always expanding and that it seems to me that gravity it's been seen as a process of expanding energy of the matter instead of an attracting force. I don't really understand it. Can somebody explain it briefly to me?

2007-06-30 04:30:30 · 2 answers · asked by timmysanz 2 in Science & Mathematics Physics

2 answers

Not certain about this law, but remember 1) the "Big Bang" is still going on. In other words, our universe is still expanding, and astronomical objects (e.g. galaxies) are flying away from each other at incredible speeds. 2) Gravity is a function of mass. In other words, stuff has gravity. The *strength* of gravity on an object falls off in proportion to the inverse square. What *this* means is that an object 20 miles from the earth experiences 1/4 of the gravitic force as the same object 10 miles from the earth.

Thus, as the universe expands, the operation of gravity from one astronomical object upon another *decreases*. Also, the force of gravity itself is "expanding" in that objects keep getting farther and farther away and, likewise, the gravity associated with them.

Maybe this helps?

2007-06-30 05:31:27 · answer #1 · answered by JimPettis 5 · 1 0

Looks like this Han Erim guy has put a whole lot of work into this idea without bothering to learn any physics.

It looks to me like he bases much of his ideas on a thought experiment involving a moving box which emits lights from both sides toward an occupant in the center of the box. During one part of the experiment, the two lights "simultaneously" ignite another pair of lamps which are stationary with respect to the ground. He then shows that this leads to a contradiction; that a an observer on the ground will report a different speed of light than the observer inside the box. He then concludes that he has managed to overthrow the theory of relativity.

But there's a fatal flaw in his thought experiment. Relativity says that two events that are "simultaneous" in one frame, are generally NOT simultaneous in another. So, according to relativity, when the observer in the box percieves that the two external lamps are ignited "simultaneously," the observer on the ground perceives something different; that one lamp is ignited before the other. This fact just goes whoosh completely over Erim's head. Once you take the simultanaity issue into account, the apparent paradox is easily resolved.

That little detail completely blows a hole in Erim's thought experiment. If he is trying to demonstrate that Einstein's ideas lead to a contradiction, then he needs to at least accurately present Einstein's ideas. But it appears he has a very poor conception of them. This is nothing but pseudoscience.

2007-06-30 05:54:23 · answer #2 · answered by RickB 7 · 1 0

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