/u/grkirchhoff's posts

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How can potential energy be relative?

3 upvotes • r/askscience

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Is it possible to estimate what percent of water molecules on earth have been part of a raindrop at some point? If so, what is that percent?

3 upvotes • r/askscience

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What is going on with the water in these pictures?

3 upvotes • r/askscience

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How can scientists tell how old light is?

2 upvotes • r/askscience

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What force allows rocks to be skipped?

2 upvotes • r/askscience

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Question about the twin paradox

2 upvotes • r/askscience

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What specifically happens to make opposite charges attract and like charges repel? Do we know why other than "that's just the way it is?"

2 upvotes • r/askscience

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Indiana Jones said the smaller a scorpion, the more deadly its venom. Is he correct?

2 upvotes • r/askscience

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The internet is filled with articles talking about sleeping on hammocks. Do any of them hold water?

2 upvotes • r/askscience

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If you were facing away from a black hole as you fell into it, could you tell when you passed the event horizon because you would suddenly be facing towards the singularity without changing direction?

2 upvotes • r/askscience

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Title	Upvotes	Subreddit	Mark as read	Favorited	Rating	Add to a list
How can potential energy be relative?	3	askscience
Is it possible to estimate what percent of water molecules on earth have been part of a raindrop at some point? If so, what is that percent?	3	askscience
What is going on with the water in these pictures?	3	askscience
How can scientists tell how old light is?	2	askscience
What force allows rocks to be skipped?	2	askscience
Question about the twin paradox	2	askscience
What specifically happens to make opposite charges attract and like charges repel? Do we know why other than "that's just the way it is?"	2	askscience
Indiana Jones said the smaller a scorpion, the more deadly its venom. Is he correct?	2	askscience
The internet is filled with articles talking about sleeping on hammocks. Do any of them hold water?	2	askscience
If you were facing away from a black hole as you fell into it, could you tell when you passed the event horizon because you would suddenly be facing towards the singularity without changing direction?	2	askscience