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

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Is elevation ever accounted for in calculations of the area of a country?

3608 upvotes

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Can two photons hit an electron at the exact same time transmitting to it the same energy as it was hit by a single higher frequency photon?

23 upvotes

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How do unicellular organisms interact with their environment and make decisions without a nervous system?

9 upvotes

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If the sky is blue because blue light gets scattered more in the atmosphere, why it is said that the sunset is orange because all the blue light got scattered and is missing? Shouldn't the sky look even more blue then?

6 upvotes

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Could two objects in space orbit each other indefinitely, assuming no external influence?

1 upvotes

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What happens to the uncertainty principle in an electron's reference frame? From its point of view does it apply to the entire universe simultaneously?

1 upvotes

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If you were to fall into a black hole, surviving the crossing of the event horizon, would you be able to see what's at the center of the black hole?

1 upvotes

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What's the behavior of a single gas molecule in a perfect vacuum chamber? Does it keep flying around due to its temperature or just drop to the floor due to gravity?

1 upvotes

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What happens to a gravitational wave when it encounters a black hole on its path?

1 upvotes

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Does the expansion of the universe affects gravitational waves speed?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is elevation ever accounted for in calculations of the area of a country?	3608
Can two photons hit an electron at the exact same time transmitting to it the same energy as it was hit by a single higher frequency photon?	23
How do unicellular organisms interact with their environment and make decisions without a nervous system?	9
If the sky is blue because blue light gets scattered more in the atmosphere, why it is said that the sunset is orange because all the blue light got scattered and is missing? Shouldn't the sky look even more blue then?	6
Could two objects in space orbit each other indefinitely, assuming no external influence?	1
What happens to the uncertainty principle in an electron's reference frame? From its point of view does it apply to the entire universe simultaneously?	1
If you were to fall into a black hole, surviving the crossing of the event horizon, would you be able to see what's at the center of the black hole?	1
What's the behavior of a single gas molecule in a perfect vacuum chamber? Does it keep flying around due to its temperature or just drop to the floor due to gravity?	1
What happens to a gravitational wave when it encounters a black hole on its path?	1
Does the expansion of the universe affects gravitational waves speed?	1