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

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What experiments/instruments are used to test the contents, purity, and identification of precious stones such as sapphire, ruby, and onyx?

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I have a dull ache in my shoulder after "sleeping on it wrong". Why is there persistent pain after doing something like this? What's causing the soreness?

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Is the photon that bounced off my head and shot off into space 20 years ago still out there?

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Trying to grow a beard, but it's taking forever. Is there anything I can do to increase hair growth?

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What causes speakers to make a clicking sound when your cell phone is next to them?

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What are the negative biological side effects, both long and short term, for pulling an all-nighter (staying up longer than 24 hours)?

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Why is it when I tap the aux plug of my speaker system a tapping sound comes out of the speakers?

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What is the limiting factor that causes people to throw up during the Gallon Challenge (drinking a gallon of milk in an hour)?

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Why do stars look like they twinkle when I look at them?

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The difference between different types of glaucoma (e.g. narrow-angle or closed angle), and why certain drugs (e.g. Scopolamine, Diazepam) are contraindicated in those certain conditions

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What experiments/instruments are used to test the contents, purity, and identification of precious stones such as sapphire, ruby, and onyx?	1
I have a dull ache in my shoulder after "sleeping on it wrong". Why is there persistent pain after doing something like this? What's causing the soreness?	1
Is the photon that bounced off my head and shot off into space 20 years ago still out there?	1
Trying to grow a beard, but it's taking forever. Is there anything I can do to increase hair growth?	1
What causes speakers to make a clicking sound when your cell phone is next to them?	1
What are the negative biological side effects, both long and short term, for pulling an all-nighter (staying up longer than 24 hours)?	1
Why is it when I tap the aux plug of my speaker system a tapping sound comes out of the speakers?	1
What is the limiting factor that causes people to throw up during the Gallon Challenge (drinking a gallon of milk in an hour)?	1
Why do stars look like they twinkle when I look at them?	1
The difference between different types of glaucoma (e.g. narrow-angle or closed angle), and why certain drugs (e.g. Scopolamine, Diazepam) are contraindicated in those certain conditions	1