/r/askscience

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Is it true that humans have the genes required to produce their own vitamin C? If so why are we unable to like in Fish or Guinea Pugs?

2530 upvotes • Aggravating_Major_49

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Why does choked flow happen and why it is related to the speed of sound ?

2528 upvotes • Tuareg99

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Is it possible to start a fire with superheated steam?

2527 upvotes • turbinador

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Why do we use Sodium for street lighting ?

2527 upvotes • ThatSlowBerry

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Has there ever been any species of plant, capable of killing and eating a full grown man?

2524 upvotes • icethegreat8

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Do animals that hibernate appear to require less sleep the rest of the year? Does hibernation slow aging in the animal? Any other interesting tidbits about hibernation?

2523 upvotes • Dr_Wreck

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Does an exposed person emit radiation?

2523 upvotes • Dryweat

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Can a literal bad apple actually spoil a barrel of good apples?

2519 upvotes • Mr_Times

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The Saturn V Rocket is called the most powerful engine in history, with 7.6 million pounds of thrust. How can this number be converted into, say, horsepower or megawatts? What can we compare the power of the rocket to?

2519 upvotes • Pupikal

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Do fingerprints restore exactly the same after a wound? If so, how do the body knows to regenerate that pattern and not leave a regular scar?

2519 upvotes • pa_lalama

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Is it true that humans have the genes required to produce their own vitamin C? If so why are we unable to like in Fish or Guinea Pugs?	2530	Aggravating_Major_49
Why does choked flow happen and why it is related to the speed of sound ?	2528	Tuareg99
Is it possible to start a fire with superheated steam?	2527	turbinador
Why do we use Sodium for street lighting ?	2527	ThatSlowBerry
Has there ever been any species of plant, capable of killing and eating a full grown man?	2524	icethegreat8
Do animals that hibernate appear to require less sleep the rest of the year? Does hibernation slow aging in the animal? Any other interesting tidbits about hibernation?	2523	Dr_Wreck
Does an exposed person emit radiation?	2523	Dryweat
Can a literal bad apple actually spoil a barrel of good apples?	2519	Mr_Times
The Saturn V Rocket is called the most powerful engine in history, with 7.6 million pounds of thrust. How can this number be converted into, say, horsepower or megawatts? What can we compare the power of the rocket to?	2519	Pupikal
Do fingerprints restore exactly the same after a wound? If so, how do the body knows to regenerate that pattern and not leave a regular scar?	2519	pa_lalama