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

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Is it possible to create an engine or motor that generates no heat?

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Why do humans have such a high degree of consciousness when there is no evolutionary advantage for it ?

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Why isn’t comprehensive cancer screening part of every yearly physical exam?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is it possible to create an engine or motor that generates no heat?	1
Why do humans have such a high degree of consciousness when there is no evolutionary advantage for it ?	1
Why isn’t comprehensive cancer screening part of every yearly physical exam?	1