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

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If an mRNA vaccine causes human cells to produce virus spike protein, why doesn't the immune system destroy such cells?

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Would steam turbines or stirling engines heated by parabolic mirrors be viable as a cheap alternative to photovoltaics?

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Shortness of breath during exercise is normal, but does it improve with cardio training?

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Google only gives partial or incomplete answers: how do heat pumps comply with the second law of thermodynamics?

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Some floor cleaning products require no rinse. Why not? How does that work?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If an mRNA vaccine causes human cells to produce virus spike protein, why doesn't the immune system destroy such cells?	1
Would steam turbines or stirling engines heated by parabolic mirrors be viable as a cheap alternative to photovoltaics?	1
Shortness of breath during exercise is normal, but does it improve with cardio training?	1
Google only gives partial or incomplete answers: how do heat pumps comply with the second law of thermodynamics?	1
Some floor cleaning products require no rinse. Why not? How does that work?	1