/u/cteno4's posts in /r/askscience

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Are there any traits passed on through the Y chromosome that are not related to sex determination?

181 upvotes

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If a magnetic field requires a moving electric charge, how does a permanent magnet work?

132 upvotes

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How do clearings and meadows form? Why don't the trees overtake the grass and shrubs?

73 upvotes

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If like charges repel, what keeps the protons in the nucleus of an atom together? And how to neutrons stick to the nucleus if they aren't attracted to anything at all?

26 upvotes

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Does the gravity of a spinning massive object exhibit drag effects on spacetime?

16 upvotes

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What changes in the designs of wires and connectors to make them faster across generations?

11 upvotes

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What happens if the blocks to polyspermy fail? Does the polyfertilized egg have a mechanism to abort if it notices too much DNA?

10 upvotes

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If the speed of sound is faster in water, and even faster in solids, why does it increase as air gets less dense?

10 upvotes

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I'm not sure how to phrase this, but why is information limited to spreading at the speed of light?

9 upvotes

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Biologically, what makes your eyes want to close when you're sleepy? Also, what is the stuff that gives you dark circles, and why does it only go away with sleep?

5 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Are there any traits passed on through the Y chromosome that are not related to sex determination?	181
If a magnetic field requires a moving electric charge, how does a permanent magnet work?	132
How do clearings and meadows form? Why don't the trees overtake the grass and shrubs?	73
If like charges repel, what keeps the protons in the nucleus of an atom together? And how to neutrons stick to the nucleus if they aren't attracted to anything at all?	26
Does the gravity of a spinning massive object exhibit drag effects on spacetime?	16
What changes in the designs of wires and connectors to make them faster across generations?	11
What happens if the blocks to polyspermy fail? Does the polyfertilized egg have a mechanism to abort if it notices too much DNA?	10
If the speed of sound is faster in water, and even faster in solids, why does it increase as air gets less dense?	10
I'm not sure how to phrase this, but why is information limited to spreading at the speed of light?	9
Biologically, what makes your eyes want to close when you're sleepy? Also, what is the stuff that gives you dark circles, and why does it only go away with sleep?	5