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

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Instead of vaccinating, why couldn't we extract a person's blood, add the live virus to the blood sample, wait till the virus is efficiently killed by generated antibodies in the blood, and reinject the blood?

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How does the rate of cooling change when narrowing the aperture of an opening at the top of a container?

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Since fins and tails exist in both fish and aquatic mammals, did these appendages need to evolve twice? Are they coded differently in the genome?

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If vibrations can loosen screws, then could one reduce the force needed to extract a screw by applying a vibration to the wood and screw system during the extraction?

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Are photons involved in heat conduction at a micro-scale?

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For a given expenditure of energy, what is the ideal way to distribute momentum over time to drive a nail into wood?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Instead of vaccinating, why couldn't we extract a person's blood, add the live virus to the blood sample, wait till the virus is efficiently killed by generated antibodies in the blood, and reinject the blood?	1
How does the rate of cooling change when narrowing the aperture of an opening at the top of a container?	1
Since fins and tails exist in both fish and aquatic mammals, did these appendages need to evolve twice? Are they coded differently in the genome?	1
If vibrations can loosen screws, then could one reduce the force needed to extract a screw by applying a vibration to the wood and screw system during the extraction?	1
Are photons involved in heat conduction at a micro-scale?	1
For a given expenditure of energy, what is the ideal way to distribute momentum over time to drive a nail into wood?	0