/r/askscience

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Why do russian RD-180 engines run oxygen rich?

3342 upvotes • danilon62

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If the Higgs field gives mass to matter, and the mass of matter curves spacetime, and said curvature is the basis of gravity; does this imply that the Higgs field causes gravity?

3341 upvotes • Safebox

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The fastest spinning neutron star spins at 716 times a second. How much of the immense gravity would be counteracted by the centrifugal force? How many times earths gravity would an object on the surface experience?

3340 upvotes • leeboof

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How is the fatigue life of an airplane wing flexing during turbulence determined? How do they keep track of it?

3339 upvotes • _line_

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How does stretching actually make the body more loose and flexible over time?

3338 upvotes • samedwar

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At what point does a liquid become so viscous that it's considered a solid?

3337 upvotes • ogdoobie420

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What happens when you sleep that makes you feel rested upon waking up?

3337 upvotes • bluefire009

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I just read about an 'Angel of Death' in Germany, are there programs tracking hospital deaths and the shifts of doctors and nurses, that could single out anomalies and point to possible murderers in the hospital wards?

3337 upvotes • roraima_is_very_tall

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Two large satellites are predicted to have a >10% chance of colliding at 8:56pm on Thursday. If it happened, what would we be able to see from the surface of Earth, and what would the short and long term consequences be?

3337 upvotes • neotek

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How did elephants evolution lead to them having a trunk?

3337 upvotes • avdolian

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why do russian RD-180 engines run oxygen rich?	3342	danilon62
If the Higgs field gives mass to matter, and the mass of matter curves spacetime, and said curvature is the basis of gravity; does this imply that the Higgs field causes gravity?	3341	Safebox
The fastest spinning neutron star spins at 716 times a second. How much of the immense gravity would be counteracted by the centrifugal force? How many times earths gravity would an object on the surface experience?	3340	leeboof
How is the fatigue life of an airplane wing flexing during turbulence determined? How do they keep track of it?	3339	_line_
How does stretching actually make the body more loose and flexible over time?	3338	samedwar
At what point does a liquid become so viscous that it's considered a solid?	3337	ogdoobie420
What happens when you sleep that makes you feel rested upon waking up?	3337	bluefire009
I just read about an 'Angel of Death' in Germany, are there programs tracking hospital deaths and the shifts of doctors and nurses, that could single out anomalies and point to possible murderers in the hospital wards?	3337	roraima_is_very_tall
Two large satellites are predicted to have a >10% chance of colliding at 8:56pm on Thursday. If it happened, what would we be able to see from the surface of Earth, and what would the short and long term consequences be?	3337	neotek
How did elephants evolution lead to them having a trunk?	3337	avdolian