askscience

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Aside from their intended functions, how do antidepressants and antipsychotics affect your cognition in general?	1
Philosophically speaking, why does everything require energy? Why is such an arbitrary thing as a conserved quantity of time invariance so important, that we have to produce it, store it, conserve it? Why don't we care as much about some other arbitrary quantity, like angular momentum or something?	1
Why does an elliptical universe imply a finite universe?	1
So should I exercise my knees to strengthen them or not taxing them too much not to damage them? Does running help my knees or damage them? I'm getting mixed messages from the internet.	1
Evolutionary speaking, why do males have facial hair and females (mostly) don't? What makes a beard genetically advantageous to a man but not to a woman?	1
What's the connection between action and angular momentum? Or is it a coincidence that they're measured in the same units?	1
Are we completely sure that general anesthesia actually removes pain? Given how often it interferes with memory formation, could it be that the patients are in agony throughout the operation, but just forget about it afterward?	1
How does it make sense for chlorophyll (or plants in general) to be green? If the purpose is to absorb sunlight, and the Sun's spectrum peaks at green, wouldn't it make more sense to absorb green light, not to reflect it? Green sounds like the most counterproductive color for energy absorption.	1
How much do we know about how sexual fetishes\paraphilias form and function?	1
Mathematically speaking, how does Minecraft's random generation work? Is there a description of the algorithm?	1

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