/u/yupko's posts in /r/askscience

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Is it possible that the Earth has fluctuated in size in the past? If so, in what ways, and due to what processes?

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Would it be possible for an Earth-sized planet to become so hot that gravity can no longer hold it together?

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Are Englishmen more related to Spaniards or Germans?

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Is there any carbon, oxygen, or hydrogen on or in the Earth's crust that has not been part of the biosphere?

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If energy cannot be destroyed, why does the Earth continually need the Sun's light?

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How did pterosaurs and prehistoric bats and flying squirrels evolve the membranes allowing them to fly? Specifically, how does a mutation like that appear?

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How do the genetics of the Aleuts, Inuit, native Siberians, and other Arctic peoples compare to the genetics of the First Nations?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is it possible that the Earth has fluctuated in size in the past? If so, in what ways, and due to what processes?	1
Would it be possible for an Earth-sized planet to become so hot that gravity can no longer hold it together?	0
Are Englishmen more related to Spaniards or Germans?	0
Is there any carbon, oxygen, or hydrogen on or in the Earth's crust that has not been part of the biosphere?	0
If energy cannot be destroyed, why does the Earth continually need the Sun's light?	0
How did pterosaurs and prehistoric bats and flying squirrels evolve the membranes allowing them to fly? Specifically, how does a mutation like that appear?	0
How do the genetics of the Aleuts, Inuit, native Siberians, and other Arctic peoples compare to the genetics of the First Nations?	0