berkeman's latest activity
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For things moving free or at rest, Observe what the first law does best. It defines a key frame, Inertial by name, Where the second law... -
berkeman reacted to kuruman's post in the thread B Why is the 3 body problem unsolvable? And what will happen if someone solves it? with
Like.
I think that the first manned Moon landing in 1969 was a spectacular solution to the 3-body problem. I scrimped and saved for three... -
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berkeman reacted to Haborix's post in the thread Announcement Please welcome berkeman as PF Admin with
Haha.
Congrats! Probably includes blood pressure medication! -
berkeman reacted to kuruman's post in the thread B Why is the 3 body problem unsolvable? And what will happen if someone solves it? with Like.
And for good reason. The first four years of undergraduate physics education train students in methods for finding analytical solutions...
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berkeman reacted to Rive's post in the thread How can I find the cleanout for my building drain? with
Informative.
Yup. The first cleanout access point should be close to that pipe: maybe at the bottom of it, maybe just close: might be covered by... -
berkeman reacted to TensorCalculus's post in the thread Physics undergraduate student (7th semester), interested in medical PhD with Like.
:welcome: ! We definitely have a handful of people here that are experienced with Medical things (e.g. @berkeman is a medic I'm pretty sure)
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berkeman reacted to PeterDonis's post in the thread I Does action at a distance violate any conservation principles? with Like.
But such influences are not directly observable. All directly observable results are in accordance with standard QM. Standard QM obeys...
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berkeman reacted to Dale's post in the thread I Relationship between nuclear magnetic physics and Maxwell's demon with Like.
I don’t see how they would be related. I don’t know of any way to physically separate hot and cold spins using MR.
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Found a human version:
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berkeman reacted to jack action's post in the thread Programming Jokes: Lame, Science & Math Jokes! with
Wow.
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berkeman reacted to juliocastro's post in the thread Physics undergraduate student (7th semester), interested in medical PhD with Like.
Hello everyone, My name is Júlio Cesar Tavares Castro, and I am currently in the 7th semester of my Licentiate in Physics degree at the...
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berkeman reacted to gmax137's post in the thread I need a concave mirror with a focal length length of 150 feet? with Haha.
Maybe it is an ISO 3200 tree.
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berkeman replied to the thread I need a concave mirror with a focal length length of 150 feet?.Or borrow your neighbor's cat and show it a fake bird you have pulled up the tree with a string. After the cat gets about half-way up...