/r/askscience

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If the energy of photons is continuous, and electron's energy levels around an atom are discreet, then how can you ever have a photon that has the exact energy to be absorbed by an electron?

513 upvotes • Red5551

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Why don't we sneeze in our sleep?

512 upvotes • IkananXIII

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I tried boiling water in the microwave and it didn't work, until I took it out and it spontaneously erupted for 5 seconds and stopped as suddenly as it started. Why?

512 upvotes • way_of_the_Jelly

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If I'm in a noisy room, when I open the window will sound escape and make the room quieter?

512 upvotes • Irish_Potatoes_

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Is there a consensus in the scientific community that the perception of time passing is a sense similar to sight & hearing? The University of Dublin recognizes time blindness as a condition and accommodates students with it. Is this rare?

512 upvotes • Dependent-Army4891

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Is sleeping during "proper" times, e.g., 12am-8am any better than sleeping at more erratic times?

511 upvotes • itsDONGS

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If the earth was to stop rotating around its axes; how cold would the dark side get ?

511 upvotes • peptoman

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What scientific data will Voyager 1 give us when it finally leaves the solar system's heliosphere?

511 upvotes • JoeOfTex

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Can you die from a magnet? How strong does it have to be?

511 upvotes • gedemagt

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Is the universe ~14b years old, or is what we can see ~14b years old... or do we just not know?

511 upvotes • freemind10

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
If the energy of photons is continuous, and electron's energy levels around an atom are discreet, then how can you ever have a photon that has the exact energy to be absorbed by an electron?	513	Red5551
Why don't we sneeze in our sleep?	512	IkananXIII
I tried boiling water in the microwave and it didn't work, until I took it out and it spontaneously erupted for 5 seconds and stopped as suddenly as it started. Why?	512	way_of_the_Jelly
If I'm in a noisy room, when I open the window will sound escape and make the room quieter?	512	Irish_Potatoes_
Is there a consensus in the scientific community that the perception of time passing is a sense similar to sight & hearing? The University of Dublin recognizes time blindness as a condition and accommodates students with it. Is this rare?	512	Dependent-Army4891
Is sleeping during "proper" times, e.g., 12am-8am any better than sleeping at more erratic times?	511	itsDONGS
If the earth was to stop rotating around its axes; how cold would the dark side get ?	511	peptoman
What scientific data will Voyager 1 give us when it finally leaves the solar system's heliosphere?	511	JoeOfTex
Can you die from a magnet? How strong does it have to be?	511	gedemagt
Is the universe ~14b years old, or is what we can see ~14b years old... or do we just not know?	511	freemind10