robphy's latest activity
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robphy reacted to PeterDonis's post in the thread Undergrad Why did the photon lose its license? with
Like.
Neither of these are correct. What is correct is that "proper time" and "proper distance" are undefined for light. Lightlike objects in... -
robphy replied to the thread What separates good guitar players from truly exceptional ones?.(2020) Al Di Meola talks about Matteo Mancuso (2020) Joe Bonamassa talks about Matteo Mancuso - (2024) Joe Bonamassa & Matteo Mancuso...
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robphy replied to the thread What separates good guitar players from truly exceptional ones?.(2022) Al Di Meola & Matteo Mancuso - live @ Eddie Lang Jazz Festival 2022 - Monterodu (2026) Are There Any Guitarists Better Than...
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robphy reacted to sbrothy's post in the thread What separates good guitar players from truly exceptional ones? with Like.
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robphy replied to the thread Philomena Cunk Interviews Brian Cox.Philomena Cunk is great because her character is like the host of a documentary. By contrast, there was Ali G (another character of...
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robphy replied to the thread Quantum Textbook sequence for theoretical physics B.Sc. with focus on quantum mechanics.Possibly useful: https://www.ocf.berkeley.edu/~abhishek/chicphys.htm https://webspace.science.uu.nl/~hooft101/theorist.html
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robphy replied to the thread Most Hard-Driving Music?.Recently posted Slayer - (The Club Horizon Garage/Calvary Cemetery) Huntington Park, CA 9.86 (Metal Mania TV show) ( &t=16m47s Kerry...
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I hope you may find this as hilarious as do I.
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robphy replied to the thread Desmos calculator links now auto-embed in posts.This is a test to see how the new Desmos Notebook format might be embedded. https://www.desmos.com/notebook/dekqcfv7yb...
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robphy reacted to Astronuc's post in the thread Using AI to improve early sepsis diagnosis with Like.
Update: The recent death (at age 41 years) of NASCAR Cup Series champion Kyle Busch is raising awareness of sepsis, which appears to...
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robphy replied to the thread Books on the philosophy of math.Possibly helpful: https://en.wikipedia.org/wiki/Relationship_between_mathematics_and_physics The Applicability of Mathematics in...