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Forums
Physics
Special and General Relativity
FTL Gravity Waves: Is Faster-Than-Light Travel Possible?
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[QUOTE="PeterDonis, post: 5599564, member: 197831"] You are assuming that "spatial expansion" is one thing. It isn't. The "spatial expansion" of the whole universe is different from the "expanding and contracting of space" in a gravitational wave. They are different spacetime geometries with different properties, and the implied analogy you are making between them by using the words "spatial expansion" to refer to both is not a valid analogy. [/QUOTE]
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Forums
Physics
Special and General Relativity
FTL Gravity Waves: Is Faster-Than-Light Travel Possible?
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