/u/[deleted]'s posts in /r/askscience

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How feasible are rotating space stations/ships that create artificial gravity?

479 upvotes

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Why does a soft iron core increase the field strength of a solenoid

478 upvotes

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Why isn't ejaculation after penetration instantaneous?

476 upvotes

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Are there any deadly diseases or conditions that a hospital cannot deal with at all? Like if a person shows up with that disease they can't do anything?

472 upvotes

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Why does everything become funny sometimes when I'm really fatigued?

469 upvotes

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If a huge and dense enough amount of coherent light was emitted, would it create a black hole traveling at the speed of light?

469 upvotes

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50° Celcius is unbearable weather, but sitting in a tub of 50° water is relaxing. Why?

468 upvotes

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Does sign language have an equivalent of rhyming?

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What kind of sounds does a human fetus hear in the womb?

466 upvotes

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Spacetime can be streched and bend. But can it vibrate? If so, does it has resonance frequency?

464 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How feasible are rotating space stations/ships that create artificial gravity?	479
Why does a soft iron core increase the field strength of a solenoid	478
Why isn't ejaculation after penetration instantaneous?	476
Are there any deadly diseases or conditions that a hospital cannot deal with at all? Like if a person shows up with that disease they can't do anything?	472
Why does everything become funny sometimes when I'm really fatigued?	469
If a huge and dense enough amount of coherent light was emitted, would it create a black hole traveling at the speed of light?	469
50° Celcius is unbearable weather, but sitting in a tub of 50° water is relaxing. Why?	468
Does sign language have an equivalent of rhyming?	468
What kind of sounds does a human fetus hear in the womb?	466
Spacetime can be streched and bend. But can it vibrate? If so, does it has resonance frequency?	464