*Poll* Do you believe other dimensions exist?

[kevinthenerd]

Originally posted by: DaShen

Originally posted by: mattpegher
Many of the mathematical calculations regarding the curvature of the universe require a 4th physical demention to work out. If I remember correctly many of these were some of Einsteins theories. As said before the Quantum Mechanics also predict that further physical dementions may exist but additional laws governing each successive demension might change the equations.

Unfortunately for Flatland lovers we cannot use our understanding of 2 demensional and one dementional projections of 3 dementional objects as a guide to 3 dementional existense in a multidementional universe, because as far as we know no examples of actual 2 or one dementional matter exists. Our depiction of a 2 dementional object actual involves 3 dementional matter, whether it is paper and graphite, or electons and photons around a LCD.

Special Theory of Relativity.

Other Dimensions are needed to explain a lot of things and tie different forces in the universe together.

A question that you could try to answer yourself is how come gravity is so weak compared to other forces? One weak magnet can defeat the gravity of the whole earth pulling on it. String, or Brane, theory says that gravity is leaking into other planes or membranes of dimensions/universes (if you believe in mutli-universe theories as many physicists are starting to ponder).

I thought General Relativity's explanation of gravity especially required the fourth dimension.

 

[kevinthenerd]

Originally posted by: silverpig

Originally posted by: mattpegher
Many of the mathematical calculations regarding the curvature of the universe require a 4th physical demention to work out. If I remember correctly many of these were some of Einsteins theories. As said before the Quantum Mechanics also predict that further physical dementions may exist but additional laws governing each successive demension might change the equations.

Unfortunately for Flatland lovers we cannot use our understanding of 2 demensional and one dementional projections of 3 dementional objects as a guide to 3 dementional existense in a multidementional universe, because as far as we know no examples of actual 2 or one dementional matter exists. Our depiction of a 2 dementional object actual involves 3 dementional matter, whether it is paper and graphite, or electons and photons around a LCD.

Uh, the curvature of spacetime doesn't require a 4th spatial dimension. It works as it should with 3 space + 1 time. Quantum mechanics makes no such prediction that I am aware of. Sure, you can write a 4,5,6, or 52 dimensional hamiltonian, but that doesn't mean it's physical.

Relativity blends space and time just as it blends mass and energy.