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Old 10-11-2018, 04:34 AM
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Ari Ari is offline
I read some of your foolish scree, then just skimmed the rest.
 
Join Date: Jan 2005
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Default Re: Drive by science

Gravitational waves provide evidence gravity exists in 3 dimensions.
I tried to give that a well duh title because sometimes things that seem obvious or stupid science are more interesting then they seem.

One of the big questions in particle physics is why is gravity so immensely more weak than all the other forces. So so much weaker, like a gajillion jillion jillion times weaker than any of the other forces. One hypothesis was that gravity wasn't actually that much weaker and that if instead it had the property to leak into another dimension and really exist in 4 or more dimensions of space that its affect on the 3 dimensions we exist in would be much weaker so as to give it the appearance of being so weak.

Since the discovery of gravitational waves our ability to study gravity has increased and a recent, to us, neutron star collision in another galaxy allowed for both the light and the gravity to be detected from the collision at the same time. Astronomers used the energy of the collision based on the understanding of the light produced to calculate the energy expected this far away depending on a 3 dimensional or 4 dimensional gravitational wave. Turns out the expected energy matched very well with 3 dimensions suggesting that gravity isn't leaking over into a 4th dimension after all. At least over distances of 100 million light years gravity is a 3 dimensional force.
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