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

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How plausible is the prediction that average human intelligence will decline since (/if) intelligence is inversely correlated to birth rate? (i.e. the Idiocracy premise)

11 upvotes

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Teflon was discovered by accident in 1938. How common is accidentally discovering materials with unexpected properties, and is it much less common now (perhaps due to better theoretical understanding or to having explored more possibilities/families of materials)?

1 upvotes

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If I take an ice cube and put it in an infinite reservoir of salt water at say 10 degree F (melting point 0 F), will it completely melt away? How long will it take?

1 upvotes

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What does it mean to say that there is energy "stored" in the electric of field of (e.g.) an isolated electron? Is the energy really "there"?

1 upvotes

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Looking for an intuitive explanation of what a Hamiltonian and a Lagrangian (and an "action") are: what do they represent physically, and why does Lagrangian mechanics work?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How plausible is the prediction that average human intelligence will decline since (/if) intelligence is inversely correlated to birth rate? (i.e. the Idiocracy premise)	11
Teflon was discovered by accident in 1938. How common is accidentally discovering materials with unexpected properties, and is it much less common now (perhaps due to better theoretical understanding or to having explored more possibilities/families of materials)?	1
If I take an ice cube and put it in an infinite reservoir of salt water at say 10 degree F (melting point 0 F), will it completely melt away? How long will it take?	1
What does it mean to say that there is energy "stored" in the electric of field of (e.g.) an isolated electron? Is the energy really "there"?	1
Looking for an intuitive explanation of what a Hamiltonian and a Lagrangian (and an "action") are: what do they represent physically, and why does Lagrangian mechanics work?	1