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| Tags: futuristic, past, used |
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#1
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"Rob Duncan" wrote in message ... "PSmith9626" wrote in message ... Dear geo, Not from the perspective ( aka frame) of the person doing the riding--only as observed by a standing still observer. best penny Approaching the speed of light, doesn't mass increase and length decrease? I wouldn't like to weigh several tons and be squashed flat! Say one ship is doing 51% the speed of light, and an approaching ship is doing 50% the speed of light... What does the aproaching ship observe? Read a physics book. 512% of the speed of light with respect to what frame? An outside inertial observer? Space ship 1? Space ship 2? |
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#2
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"Michael Varney" wrote in message ... "Rob Duncan" wrote in message ... "PSmith9626" wrote in message ... Dear geo, Not from the perspective ( aka frame) of the person doing the riding--only as observed by a standing still observer. best penny Approaching the speed of light, doesn't mass increase and length decrease? I wouldn't like to weigh several tons and be squashed flat! Say one ship is doing 51% the speed of light, and an approaching ship is doing 50% the speed of light... What does the aproaching ship observe? Read a physics book. 512% of the speed of light with respect to what frame? An outside inertial observer? Space ship 1? Space ship 2? Error... 51%, not 512% |
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