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

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If I, as a person with long forearms, lift the same weight as a person with forearms half my length, am I twice as strong due to the increased moment at my elbow?

42 upvotes

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How do we know if something has been red/blue shifted?

5 upvotes

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[Engineering] Why are ships and submarines referred to by such different measurements than land vehicles? Tons displacement, draft depth, etc. instead of weight and length.

2 upvotes

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Do coefficients of friction actually mean anything or are they a fudge factor for a more complicated phenomena?

2 upvotes

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Would anything be significantly different if the Earth rotated faster? 2x? 5x? 100x?

1 upvotes

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Why do the bubbles and foam head from a beer dissipate much more slowly than bubbles and head in soda? Aren't they both CO2?

1 upvotes

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My dream had a 'twist' last night, like a twist ending. How is it that my brain can surprise itself?

1 upvotes

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For foods in resealable packages, would it make more sense for an "air exchange expiration" instead of an expatriation date?

1 upvotes

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[Biology][Technology] Why can human eyes see well in the near darkness but cameras usually cannot?

1 upvotes

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Why don't planes use air-to-air heat exchangers at altitude for AC?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If I, as a person with long forearms, lift the same weight as a person with forearms half my length, am I twice as strong due to the increased moment at my elbow?	42
How do we know if something has been red/blue shifted?	5
[Engineering] Why are ships and submarines referred to by such different measurements than land vehicles? Tons displacement, draft depth, etc. instead of weight and length.	2
Do coefficients of friction actually mean anything or are they a fudge factor for a more complicated phenomena?	2
Would anything be significantly different if the Earth rotated faster? 2x? 5x? 100x?	1
Why do the bubbles and foam head from a beer dissipate much more slowly than bubbles and head in soda? Aren't they both CO2?	1
My dream had a 'twist' last night, like a twist ending. How is it that my brain can surprise itself?	1
For foods in resealable packages, would it make more sense for an "air exchange expiration" instead of an expatriation date?	1
[Biology][Technology] Why can human eyes see well in the near darkness but cameras usually cannot?	1
Why don't planes use air-to-air heat exchangers at altitude for AC?	1