MadSci Network: Physics
Query:

Subject: how universe know which of two objects is going faster?

Date: Mon Aug 28 08:29:37 2006
Posted by James
Grade level: grad (non-science) School: No school entered.
City: Granbury State/Province: TX Country: United States
Area of science: Physics
ID: 1156778977.Ph
Message:

How does the universe (laws of gen. relativity, physics) know which of two
objects traveling thru space is going faster. using the old rocket cliche: a
clock in a rocket traveling, say, .95 speed of light vis-a-vis earth. how does
universe know it is the rocket clock to slow down an not the earth's, seems to
me there is no way  to NOT say the earth is going .95 C  and the rocket is
"standing still". Assume rocket is not accerlerating (nor earth) but at constant
speed. 


Re: how universe know which of two objects is going faster?

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