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

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What does it even mean that space is curved

23 upvotes

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Where do photons come from, or how are they "created"?

21 upvotes

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To travel back in time wouldn't you need to increase the entropy of the entire universe at every point?

19 upvotes

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What experimental evidence do we have that c is the speed limit of the cosmos?

18 upvotes

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Which is more "green," or where is the breakeven point between, taking the elevator or ascending flights on human power (via the stairs)

11 upvotes

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Two ships are traveling at .7c towards each other on a collision course, at what speed do they collide?

10 upvotes

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When two galaxies "collide" how much "collision" actually happens?

8 upvotes

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In the quantum world, do contradictions exist?

5 upvotes

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Reading Our Mathematical Universe: how does pressure cause gravity?

5 upvotes

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If wind turbines slow down the wind, could severe storms be lessened in severity by an array on wind turbines in their path?

4 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What does it even mean that space is curved	23
Where do photons come from, or how are they "created"?	21
To travel back in time wouldn't you need to increase the entropy of the entire universe at every point?	19
What experimental evidence do we have that c is the speed limit of the cosmos?	18
Which is more "green," or where is the breakeven point between, taking the elevator or ascending flights on human power (via the stairs)	11
Two ships are traveling at .7c towards each other on a collision course, at what speed do they collide?	10
When two galaxies "collide" how much "collision" actually happens?	8
In the quantum world, do contradictions exist?	5
Reading Our Mathematical Universe: how does pressure cause gravity?	5
If wind turbines slow down the wind, could severe storms be lessened in severity by an array on wind turbines in their path?	4