/r/askscience

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AskScience AMA Series: I'm Gene Kritsky, known as the Indiana Jones of cicadas. I'm here to present new discoveries about these "bugs of history," when to expect them, what to do about them and how you can participate in mapping the next brood. AMA!

2859 upvotes • AskScienceModerator

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If we can lose hundreds of skin cells by scratching at them, why is it hard to rub off pen or marker on our skin?

2856 upvotes • kevin4789

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As the human body goes from being an infant to an adult, are there any organs or body parts that become smaller instead of larger?

2855 upvotes • Asskickingman

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What would happen if two black holes came into contact with each other?

2853 upvotes • Stubbypants

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How do invertebrates with exoskeletons experience and deal with injuries?

2853 upvotes • thelogicalghost

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Why is water from the tap not contaminated with bacteria, dirt and algae after running through hundreds of miles of old pipes to get there?

2852 upvotes • TheWox

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How long will two 12v batteries heat a small room for?

2851 upvotes • joe2000000

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Are there short-term, long-term, and working attention spans the way there are with memory?

2851 upvotes • submarginal

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Why do those stripes form besides an/this nuclear blast? (Camp Desert Rock nuclear test)

2850 upvotes • I_am_a_Failer

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When listening to the radio in a traveling vehicle and then going through a tunnel, and the audio of the song/news turns to static, what is being played through the radio if the signal is lost, as in, what provides the 'static' sound?

2850 upvotes • JamesTheJerk

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
AskScience AMA Series: I'm Gene Kritsky, known as the Indiana Jones of cicadas. I'm here to present new discoveries about these "bugs of history," when to expect them, what to do about them and how you can participate in mapping the next brood. AMA!	2859	AskScienceModerator
If we can lose hundreds of skin cells by scratching at them, why is it hard to rub off pen or marker on our skin?	2856	kevin4789
As the human body goes from being an infant to an adult, are there any organs or body parts that become smaller instead of larger?	2855	Asskickingman
What would happen if two black holes came into contact with each other?	2853	Stubbypants
How do invertebrates with exoskeletons experience and deal with injuries?	2853	thelogicalghost
Why is water from the tap not contaminated with bacteria, dirt and algae after running through hundreds of miles of old pipes to get there?	2852	TheWox
How long will two 12v batteries heat a small room for?	2851	joe2000000
Are there short-term, long-term, and working attention spans the way there are with memory?	2851	submarginal
Why do those stripes form besides an/this nuclear blast? (Camp Desert Rock nuclear test)	2850	I_am_a_Failer
When listening to the radio in a traveling vehicle and then going through a tunnel, and the audio of the song/news turns to static, what is being played through the radio if the signal is lost, as in, what provides the 'static' sound?	2850	JamesTheJerk