Originally posted by ElectroMagnetic Multivers
reply to post by Kinesis

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I think I'm wrong, although i was talking from an outsied perspective, a viewer if you will watching someone travel from point A to B. But the points aren't in motion, and therefore are a constant for light (right?) the object travelling is the variable, that would surpass light, and would therefore 'appear' invisible?

confused myself a little there

Originally posted by Badge01
reply to post by jkrog08

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Though there might be a way to go from point A to point B in less time than a light beam or photon stream moving through space takes, it is not likely to be on a 'vessel' (or Wessel as Checkov might say) using some kind of propulsion.

Also for those who are making bold statements about special relativity or general relativity, it might be helpful to preface your comments with a short comment or reference as to your basic understanding of what that is.

Likewise, those making a bold statement, such as 'photons have mass' should endeavor to reference their proof of this.

Though photons are demonstrated to exert a gravitational attraction on other objects and they themselves are affected by gravity, their mass at rest is 0.

Originally posted by Badge01
reply to post by jkrog08

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Though photons are demonstrated to exert a gravitational attraction on other objects and they themselves are affected by gravity, their mass at rest is 0.
Photon @ Wiki

Gravitation is a natural phenomenon by which all objects with mass attract each other, and is one of the fundamental forces of physics. In everyday life, gravitation is most commonly thought of as the agency that gives objects weight. It is responsible for keeping the Earth and the other planets in their orbits around the Sun; for keeping the Moon in its orbit around the Earth, for the formation of tides; for convection (by which hot fluids rise); for heating the interiors of forming stars and planets to very high temperatures; and for various other phenomena that we observe. Gravitation is also the reason for the very existence of the Earth, the Sun, and most macroscopic objects in the universe; without it, matter would not have coalesced into these large masses and life, as we know it, would not exist.

The invariant mass, intrinsic mass, proper mass or just mass is a characteristic of the total energy and momentum of an object or a system of objects that is the same in all frames of reference. When the system as a whole is at rest, the invariant mass is equal to the total energy of the system divided by c2, which is equal to the mass of the system as measured on a scale. If the system is one particle, the invariant mass is called the rest mass.

Originally posted by jkrog08
reply to post by Warlon

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About your time travel question:The reason both clocks would be the same if you used a "subspace" signal is because subspace is not in this dimension it is in another one w/o our laws.So therefor one would send a signal in that dimension the same way the craft in "startrek"warp space-thus the laws of physics of THIS dimension(universe)do not apply.If that signal were sent in "real"space than realitivity would occur.

Now as for the definition of gravity:

Gravitation is a natural phenomenon by which all objects with mass attract each other, and is one of the fundamental forces of physics. In everyday life, gravitation is most commonly thought of as the agency that gives objects weight. It is responsible for keeping the Earth and the other planets in their orbits around the Sun; for keeping the Moon in its orbit around the Earth, for the formation of tides; for convection (by which hot fluids rise); for heating the interiors of forming stars and planets to very high temperatures; and for various other phenomena that we observe. Gravitation is also the reason for the very existence of the Earth, the Sun, and most macroscopic objects in the universe; without it, matter would not have coalesced into these large masses and life, as we know it, would not exist.

As far as Photon mass:

The invariant mass, intrinsic mass, proper mass or just mass is a characteristic of the total energy and momentum of an object or a system of objects that is the same in all frames of reference. When the system as a whole is at rest, the invariant mass is equal to the total energy of the system divided by c2, which is equal to the mass of the system as measured on a scale. If the system is one particle, the invariant mass is called the rest mass.

Wikipedia