/r/askscience

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Are there any human bloods types that we know of, that no longer exist?

1530 upvotes • [deleted]

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How is a clean room, such as a room that prepares semiconductor chips, made clean?

1530 upvotes • The_Bottom_Rat

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With the element radium being so rare, only a few kilograms total being mined over time, how did it make it into so many different consumer products, from watch dials to health elixirs?

1529 upvotes • [deleted]

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Can an object ever get hotter than the thing that’s heating it?

1529 upvotes • PM_ME_UR_RECIPEZ

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Does organic matter decompose in highly irradiated zones?

1528 upvotes • EccoEco

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Why is this picture so hard to look at?

1527 upvotes • Treefingrs

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Could DNA and the enzymes that process it be considered a Turing machine?

1526 upvotes • ceeBread

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Native Americans died from European diseases. Why was there not the equivalent introduction of new diseases to the European population?

1524 upvotes • ConstableBrew

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Can I "average out" water temperature by adding volumes at a specific temperature?

1524 upvotes • cessna120

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How did elements heavier than iron form given that iron is the end-game for star fusion?

1523 upvotes • slanderousu

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Are there any human bloods types that we know of, that no longer exist?	1530	[deleted]
How is a clean room, such as a room that prepares semiconductor chips, made clean?	1530	The_Bottom_Rat
With the element radium being so rare, only a few kilograms total being mined over time, how did it make it into so many different consumer products, from watch dials to health elixirs?	1529	[deleted]
Can an object ever get hotter than the thing that’s heating it?	1529	PM_ME_UR_RECIPEZ
Does organic matter decompose in highly irradiated zones?	1528	EccoEco
Why is this picture so hard to look at?	1527	Treefingrs
Could DNA and the enzymes that process it be considered a Turing machine?	1526	ceeBread
Native Americans died from European diseases. Why was there not the equivalent introduction of new diseases to the European population?	1524	ConstableBrew
Can I "average out" water temperature by adding volumes at a specific temperature?	1524	cessna120
How did elements heavier than iron form given that iron is the end-game for star fusion?	1523	slanderousu