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AskScience AMA Series: I'm Gary Marcus, co-author of Rebooting AI with Ernest Davis. I work on robots, cognitive development, and AI. Ask me anything!

2178 upvotes • AskScienceModerator

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What would happen if we removed too much CO2 from the atmosphere? How much would be too much?

2178 upvotes • _DeanRiding

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What makes water such a good solvent?

2177 upvotes • silverben10

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Could you make a CPU from scratch?

2176 upvotes • spinfip

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I'm making jelly and the instructions say: "Do not add pineapple, kiwifruit or paw paw as jelly will not set." Why is that?

2175 upvotes • isaidthisinstead

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Are there any parasites that inhabit a valuable ecological niche?

2172 upvotes • DomesticApe23

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Does the smallpox vaccine protect against the monkeypox virus?

2172 upvotes • Mindraker

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My dad has a masters in chemistry and he says this ingredient in an energy drink (selenium amino acid chelate) does not exist. Can any of you verify?

2170 upvotes • kramrelkaf

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Breaking a bar magnet in half creates two new bar magnets with a north and south pole. How many times can a bar magnet be broken in half until the poles of the new parts are no longer discernible?

2167 upvotes • Bausse

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What if we put a mirror in space, 1 light year from earth and we pointed Hubble at it would it be possible to see two years into earths past?

2165 upvotes • MrTripper

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
AskScience AMA Series: I'm Gary Marcus, co-author of Rebooting AI with Ernest Davis. I work on robots, cognitive development, and AI. Ask me anything!	2178	AskScienceModerator
What would happen if we removed too much CO2 from the atmosphere? How much would be too much?	2178	_DeanRiding
What makes water such a good solvent?	2177	silverben10
Could you make a CPU from scratch?	2176	spinfip
I'm making jelly and the instructions say: "Do not add pineapple, kiwifruit or paw paw as jelly will not set." Why is that?	2175	isaidthisinstead
Are there any parasites that inhabit a valuable ecological niche?	2172	DomesticApe23
Does the smallpox vaccine protect against the monkeypox virus?	2172	Mindraker
My dad has a masters in chemistry and he says this ingredient in an energy drink (selenium amino acid chelate) does not exist. Can any of you verify?	2170	kramrelkaf
Breaking a bar magnet in half creates two new bar magnets with a north and south pole. How many times can a bar magnet be broken in half until the poles of the new parts are no longer discernible?	2167	Bausse
What if we put a mirror in space, 1 light year from earth and we pointed Hubble at it would it be possible to see two years into earths past?	2165	MrTripper