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

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If energy can't be created or destroyed how much energy is there in the universe?

1199 upvotes

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How much longer can the Earth sustain the human population? What will 'run-out' first?

6 upvotes

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Why can't energy be created or destroyed?

4 upvotes

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Why do we need sleep? Chemically what does sleep do that cannot be done with an injection or tablets?

2 upvotes

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If faster than light travel was technologically possible would that mean that a planet scale destruction event is inevitable?

1 upvotes

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How long will drinking your own urnine keep you alive, over not drinking it.

1 upvotes

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If every current device connected to the internet was installed with distributed processing software. How much processing power would the resulting network have? What would it be possible to do with it?

1 upvotes

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Is it ethical to use scientific data from torture / mistreatment? I.e. experiments by Nazis / Japan during WWII.

1 upvotes

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Why is there so much water on Earth, but not other planets?

0 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If energy can't be created or destroyed how much energy is there in the universe?	1199
How much longer can the Earth sustain the human population? What will 'run-out' first?	6
Why can't energy be created or destroyed?	4
Why do we need sleep? Chemically what does sleep do that cannot be done with an injection or tablets?	2
If faster than light travel was technologically possible would that mean that a planet scale destruction event is inevitable?	1
How long will drinking your own urnine keep you alive, over not drinking it.	1
If every current device connected to the internet was installed with distributed processing software. How much processing power would the resulting network have? What would it be possible to do with it?	1
Is it ethical to use scientific data from torture / mistreatment? I.e. experiments by Nazis / Japan during WWII.	1
Why is there so much water on Earth, but not other planets?	0