robphy's latest activity
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robphy replied to the thread AAPT 2025 Summer Meeting Washington DC (August 2025) - are you going?.It was a variation of this talk (with some good timely jokes appreciated by college and high school physics teachers) Saturday Morning... -
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https://en.wikipedia.org/wiki/Yvonne_Choquet-Bruhat (photo from 1974) https://www.nature.com/articles/d41586-025-01763-z...
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robphy reacted to TensorCalculus's post in the thread History Biographies, History, Philosophy of Physics with
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Yes: she's such an inspiration for me!!! Not only a woman mathematician: a Jewish woman Mathematician at the time of WW2. What a legend... -
robphy reacted to TensorCalculus's post in the thread I want to help Physics education. What should I do? with Like.
Done - I've got a handful of PDFs downloaded and I'll look at them today I'll see if I can get my hands on that book... The surgeries...
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robphy replied to the thread I want to help Physics education. What should I do?.Here's a suggestion: Physics Video viewing sessions. (Many of these are videos I watched as a student ( high-school, college grad ) in...
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robphy reacted to Muu9's post in the thread I want to help Physics education. What should I do? with Like.
My interpretation is that it's intensive tutoring for those struggling
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robphy replied to the thread I Freefall and gravity.Get an app like https://phyphox.org/ which lets you get the raw accelerometer data. While holding my phone at rest with my phone...
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Objects "experiencing gravity", whether in freefall or not, is not part of the theory of general relativity; it's a misunderstanding...
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robphy replied to the thread I want to help Physics education. What should I do?.Have you spoken with the physics teachers at your school? They may have some insight into some of what you are experiencing in your...
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https://en.wikipedia.org/wiki/Tom_Lehrer https://www.cnn.com/2025/07/27/entertainment/tom-lehrer-death...
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robphy reacted to TensorCalculus's post in the thread I want to help Physics education. What should I do? with Like.
Now this is right up my alleyway. Running local events for students is what I do :D The closest ones are in Oxford and London, none in...
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robphy replied to the thread Playing the guitar, the difference between being good and being a genius.....From #1,611 in the Cover Songs thread (2016) Igor Paspalj - Legato Etude from Hell https://www.bilibili.com/video/BV1h5411N7qx/?p=9...
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robphy replied to the thread Quantum mechanics book recommendations.You might consider some books by Dan Styer: https://www2.oberlin.edu/physics/dstyer/index.html...
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They are different manifolds so there is not a coordinate transform between them. Of course locally you can always find coordinates that...
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robphy replied to the thread I Problem in understanding instantaneous velocity.Here's how I visually motivate the interpretation of the velocity (as the slope of the tangent line) to my students. Assuming a nice...
