/r/askscience

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How fast does blood flow in a human body?

2516 upvotes • LemonsNeedHelp

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Does high-end hardware cost significantly more to make?

2516 upvotes • Chlorophilia

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Why do some people develop allergies with repeated exposure to an external stimulus vs. some people developing immunity to said stimulus?

2515 upvotes • qxzsilver

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AskScience AMA: We are scientists in the food and feed laboratories that test imported products for dangerous pathogens as well as illegal dyes, metals, antibiotics and more. Ask us anything!

2514 upvotes • FoodFeedLab

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Could I melt wood?

2512 upvotes • Shit_buller

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Aside from Uranium and Plutonium for bomb making, have scientist found any other material valid for bomb making?

2512 upvotes • MScrapienza

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A lot of skin products offer a "sensitive skin" alternative. What is the usual difference in ingredients and why is this better for sensitive skin?

2511 upvotes • Seanykins

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The heart is just a basic two way pump. Why can't we just install two turbines and have a continuous flow of blood?

2510 upvotes • [deleted]

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Everyone knows that sharks can smell blood in the water. But are there any air-breathing animals that can smell underwater? Or water-breathing animals that can smell in the air?

2509 upvotes • Right_Two_5737

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How is it that they can X ray paintings to see what is under the picture (previous pictures o changes that the painter did)? What's the x ray stopping at? Is it the same kind of x ray that they use at hospitals?

2507 upvotes • YoSoyKeott

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
How fast does blood flow in a human body?	2516	LemonsNeedHelp
Does high-end hardware cost significantly more to make?	2516	Chlorophilia
Why do some people develop allergies with repeated exposure to an external stimulus vs. some people developing immunity to said stimulus?	2515	qxzsilver
AskScience AMA: We are scientists in the food and feed laboratories that test imported products for dangerous pathogens as well as illegal dyes, metals, antibiotics and more. Ask us anything!	2514	FoodFeedLab
Could I melt wood?	2512	Shit_buller
Aside from Uranium and Plutonium for bomb making, have scientist found any other material valid for bomb making?	2512	MScrapienza
A lot of skin products offer a "sensitive skin" alternative. What is the usual difference in ingredients and why is this better for sensitive skin?	2511	Seanykins
The heart is just a basic two way pump. Why can't we just install two turbines and have a continuous flow of blood?	2510	[deleted]
Everyone knows that sharks can smell blood in the water. But are there any air-breathing animals that can smell underwater? Or water-breathing animals that can smell in the air?	2509	Right_Two_5737
How is it that they can X ray paintings to see what is under the picture (previous pictures o changes that the painter did)? What's the x ray stopping at? Is it the same kind of x ray that they use at hospitals?	2507	YoSoyKeott