/r/askscience

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How deep can water be before the water at the bottom starts to phase change from liquid to solid?

5982 upvotes • forman98

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Can pyschopaths have traumatic disorders like PTSD?

5981 upvotes • AnghreeSixty

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Why does the Covid Nasal Test have to be so invasive? How is it necessary to dig that deep?

5975 upvotes • laineh90

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I saw an asteroid impact calculator and it said the maximum speed of something orbiting the sun is 72km/s. Why?

5974 upvotes • Yazman

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Does food that's got 'heat' but isn't from the genus capsicum (ie chillies), such as pepper, wasabi, ginger, mustard, etc have capsaicin in it or some other chemical that gives it 'heat'?

5974 upvotes • riamuriamu

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Why is gold used on connector ends, like on usb-connectors for gaming mice, when copper has lower electrical resistivity?

5971 upvotes • babystrumpor

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If the axial tilt of Uranus (97°) was caused by a giant impact that flipped it on its side, then why do Uranus' moons orbit around its equator at the same tilt (≈97°)? Shouldn't their orbits follow whatever mild axial tilt Uranus had before the hypothetical giant impact?

5960 upvotes • kaksowohe7

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Does the Doppler effect have any noticeable consequences on wireless Internet connection?

5955 upvotes • sam007961

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Why are certain things like knives/swords forged when they could may as well be cut and sharpened from a sheet of metal?

5945 upvotes • Ne0_TitaN

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Why don’t we have vaccines for all Herpes Viruses?

5939 upvotes • BlissfullyOrbital

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
How deep can water be before the water at the bottom starts to phase change from liquid to solid?	5982	forman98
Can pyschopaths have traumatic disorders like PTSD?	5981	AnghreeSixty
Why does the Covid Nasal Test have to be so invasive? How is it necessary to dig that deep?	5975	laineh90
I saw an asteroid impact calculator and it said the maximum speed of something orbiting the sun is 72km/s. Why?	5974	Yazman
Does food that's got 'heat' but isn't from the genus capsicum (ie chillies), such as pepper, wasabi, ginger, mustard, etc have capsaicin in it or some other chemical that gives it 'heat'?	5974	riamuriamu
Why is gold used on connector ends, like on usb-connectors for gaming mice, when copper has lower electrical resistivity?	5971	babystrumpor
If the axial tilt of Uranus (97°) was caused by a giant impact that flipped it on its side, then why do Uranus' moons orbit around its equator at the same tilt (≈97°)? Shouldn't their orbits follow whatever mild axial tilt Uranus had before the hypothetical giant impact?	5960	kaksowohe7
Does the Doppler effect have any noticeable consequences on wireless Internet connection?	5955	sam007961
Why are certain things like knives/swords forged when they could may as well be cut and sharpened from a sheet of metal?	5945	Ne0_TitaN
Why don’t we have vaccines for all Herpes Viruses?	5939	BlissfullyOrbital