/u/Aldheim's posts in /r/askscience
If space and time are one and the same, why can energy and matter move freely through space, but only "forwards" in time?
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Regarding the energy required for forward movement, and weight, of airships (blimp, zepplin, etc) when taking differing mass into account.
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Regarding the energy required for forward movement, and weight, of airships (blimp, zepplin, etc) when taking differing mass into account?
1 upvotes
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