/u/dmaswhite4's posts in /r/askscience

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Why is it not E=1/2m c^2, like KE=1/2m v^2 ? Did Einstein leave off the 1/2?

3655 upvotes

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Do quantumly entangled particles have to be EM waves? Could you put 1/2 of an entangled pair into a box and take it to the moon, for example.

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Is a burst appendix always fatal if not treated?

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Black holes as dark matter?

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Could black holes be the missing source of dark matter?

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How can a dentist tell on x-rays whether you had braces or not?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why is it not E=1/2m c^2, like KE=1/2m v^2 ? Did Einstein leave off the 1/2?	3655
Do quantumly entangled particles have to be EM waves? Could you put 1/2 of an entangled pair into a box and take it to the moon, for example.	1
Is a burst appendix always fatal if not treated?	1
Black holes as dark matter?	1
Could black holes be the missing source of dark matter?	1
How can a dentist tell on x-rays whether you had braces or not?	1