Quote:
Originally Posted by speedfreek
Light emitted at a distance of around 40 million light years away travelled 13.7 billion light-years to reach us here. Meters are always the same length and so are seconds. New meters were being introduced between that light and this point in space as the light moved.
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If we ignore the possibility that introducing "new meters" to meters makes no sense, do you understand that one would need to introduce one "new second" for every 300,000,000 "new meters". Or as previously stated, stretching space requires that we stretch time if
c is to remain constant.
Quote:
Originally Posted by speedfreek
In GR, you experience different amounts of seconds, relative to another observer, depending on the gravitational conditions around you. But all seconds are the same length.
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I didn't know Einsteins clocks all ran at the same speed. They just add or subtract seconds. This is enlightening.
Quote:
Originally Posted by speedfreek
You might like to think of it like time is running faster or slower, but in science, seconds and meters stay the same throughout, you just get more or less of them!
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This is an amazingly astute observation I'll have to write it down.