# TED Conversations

• Dave R
• Toronto , Ontario

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## Movement causes gravity.

I have a crazy theory that it is the movement of mass through space-time that is the cause of gravity. I believe that the movement of mass causes a 'wake' or gap in space-time that forces other mass to try and take the place of the moved mass causing the gravitational attraction. I have come to think this, because of Einstein's relativity theory, string theory, the 'Bozon' particle theory, and the fact that everything that has gravity is moving. The best way to illustrate this would be- if you were to draw a paddle through water, other water will take the place of the water you moved. Does anyone have any thoughts/insights into this?

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• #### bob douglas

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May 9 2012: This seems like a pretty good theory except a few problems which I will get to in a minute. Just a warning though because even if this is modified to make it fool proof it most likely will not be accepted any time soon because such a radical idea would destroy many foundations of physics.

The first problem in your theory is the fact that with motion you would have to have a reference point. The reference point is crucial because the fabric of space time is steadily expanding so what you choose as the reference point has to literally be universal. In order for your theory to match current observations the amount of motion would have to effect the magnitude of gravity (the speed of movement determines the potential energy so e = mc2) would have to be included. With that said the only to places in the universe that this could be applicable in is the center of the universe or the entire circumference of the universe. If the center of the universe was the reference point then the mass there would be no movement in the exact center of the universe yet matter would still have a gravitational pull therefore ruining the theory. Having the outside of the universe as your referrence point creates the exact opposite problem where at any given point in time the expansion of the universe creates particles infinetely close to the border of the universe. But being infenitely close means that their still will be a growing distance even in one point in time because the universe expands faster than the speed of light. This means that when the matter is infenetely close it would be pulled at the edge of the universe with an infinite amount of force causing it to stay on the outer edge for ever which doesn't match the fact that we aren't on the very edge of the universe. This could be fixed by using a reference point in the megaverse theory but you need to figure that out yourself.

look at my next comment for the next reason because I'm out of space now.

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