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

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Does locking your knees while standing actually cause you to pass out?

22 upvotes

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In football, a lot of players put eye black below their eyes, supposedly to reduce glare; is this assertion supported by science? If so, how does it work?

1 upvotes

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Why does my coffee hiss?

1 upvotes

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In 1971, Alan Shepherd hit three golf balls on the moon. He did it one handed, but he said he thought the balls went "miles and miles". How far did they likely really go?

1 upvotes

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If an Earth-like planet with a very fast orbit, say 7 days, was found inside the habitable zone of a distant star, how would that rate of orbit affect the habitability of the planet for humans?

1 upvotes

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Why isn’t there a medical treatment for “reactivating” hair color (or “curing”) grey hair?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Does locking your knees while standing actually cause you to pass out?	22
In football, a lot of players put eye black below their eyes, supposedly to reduce glare; is this assertion supported by science? If so, how does it work?	1
Why does my coffee hiss?	1
In 1971, Alan Shepherd hit three golf balls on the moon. He did it one handed, but he said he thought the balls went "miles and miles". How far did they likely really go?	1
If an Earth-like planet with a very fast orbit, say 7 days, was found inside the habitable zone of a distant star, how would that rate of orbit affect the habitability of the planet for humans?	1
Why isn’t there a medical treatment for “reactivating” hair color (or “curing”) grey hair?	1