/r/askscience

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What are the most commonly accepted theories of consciousness among scientists today?

12006 upvotes • kh_1987

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What exactly is meant when we hear up to 25% of Covid-19 carriers could be asymptomatic?

11980 upvotes • Jak03e

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How is the universe (at least) 46 billion light years across, when it has only existed for 13.8 billion years?

11964 upvotes • lildryersheet

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Why did we go from a Delta variant of COVID straight to Lambda? What happened to Epsilon, Zeta, Eta, Theta, Iota, and Kappa?

11916 upvotes • JamieOvechkin

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Do any non-human animals deliberately combine foods for eating simultaneously? Do any prepare meals with more than one ingredient?

11914 upvotes • churniglow

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Why do we lose the desire to eat while we are sick? (Ex. when having a cold, I lose the desire to eat)

11851 upvotes • Equ1no0x

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The freezing point of carbon dioxide is -78.5C, while the coldest recorded air temperature on Earth has been as low as -92C, does this mean that it can/would snow carbon dioxide at these temperatures?

11811 upvotes • FloatingArk54

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What elements are at genuine risk of running out and what are the implications of them running out?

11750 upvotes • jam_i_am

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How do dolphins sleep. If dolphins need air to breathe then how do they sleep underwater?

11739 upvotes • ChrstnCrrnd

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When octopus/squid/cuttlefish are out of the water in some videos, are they in pain from the air? Or does their skin keep them safe for a prolonged time? Is it closer to amphibian skin than fish skin?

11709 upvotes • HarboringOnALament

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
What are the most commonly accepted theories of consciousness among scientists today?	12006	kh_1987
What exactly is meant when we hear up to 25% of Covid-19 carriers could be asymptomatic?	11980	Jak03e
How is the universe (at least) 46 billion light years across, when it has only existed for 13.8 billion years?	11964	lildryersheet
Why did we go from a Delta variant of COVID straight to Lambda? What happened to Epsilon, Zeta, Eta, Theta, Iota, and Kappa?	11916	JamieOvechkin
Do any non-human animals deliberately combine foods for eating simultaneously? Do any prepare meals with more than one ingredient?	11914	churniglow
Why do we lose the desire to eat while we are sick? (Ex. when having a cold, I lose the desire to eat)	11851	Equ1no0x
The freezing point of carbon dioxide is -78.5C, while the coldest recorded air temperature on Earth has been as low as -92C, does this mean that it can/would snow carbon dioxide at these temperatures?	11811	FloatingArk54
What elements are at genuine risk of running out and what are the implications of them running out?	11750	jam_i_am
How do dolphins sleep. If dolphins need air to breathe then how do they sleep underwater?	11739	ChrstnCrrnd
When octopus/squid/cuttlefish are out of the water in some videos, are they in pain from the air? Or does their skin keep them safe for a prolonged time? Is it closer to amphibian skin than fish skin?	11709	HarboringOnALament