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

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Are the vaccines for "legacy" diseases/infections such as Chickenpox, Diphtheria, Mumps, etc. being refined/optimized every year/generation or do they largely stay the same?

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When rubbing/scratching your nose, why is it we make strange faces?

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Why do humans stretch their faces in weird ways to scratch an itch?

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What is the explanation for the force that pushes you back the moment your car comes to a complete stop?

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Sniper rifle, flat plain, fired horizontally at my head, how far would I have to stand for the bullet to roll to a stop at my feet?

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A drunk's vs non drinker's sperm: long and short term effects on the offspring?

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If you only cover half your body when it's cold, is it one of the body's first priorities to move warm blood to the cold area?

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What is that hard mucus that gets stuck in throat and cough up occasionally?

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Are trees "drunk" off CO2 in very smoggy cities? How does this affect them?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Are the vaccines for "legacy" diseases/infections such as Chickenpox, Diphtheria, Mumps, etc. being refined/optimized every year/generation or do they largely stay the same?	1
When rubbing/scratching your nose, why is it we make strange faces?	1
Why do humans stretch their faces in weird ways to scratch an itch?	1
What is the explanation for the force that pushes you back the moment your car comes to a complete stop?	1
Sniper rifle, flat plain, fired horizontally at my head, how far would I have to stand for the bullet to roll to a stop at my feet?	1
A drunk's vs non drinker's sperm: long and short term effects on the offspring?	1
If you only cover half your body when it's cold, is it one of the body's first priorities to move warm blood to the cold area?	1
What is that hard mucus that gets stuck in throat and cough up occasionally?	1
Are trees "drunk" off CO2 in very smoggy cities? How does this affect them?	0