Recent content by robphy

https://en.wikipedia.org/wiki/Psycho_Killer (1977) https://en.wikipedia.org/wiki/Talking_Heads Talking Heads - Psycho Killer (Earliest Live Video, Live at CBGB's,1975) - "Psycho Killer (1974 Demo)" The Artistics (1974, from "Tentative Decisions: Demos & Live" LP) -...

Concerning high-school physics clubs, here are more ideas from other platforms: www.reddit.com/r/AskPhysics/comments/fgqeid/high_school_physics_club/ https://www.quora.com/How-do-I-start-a-high-school-physics-club...

This is an enlightening video: “The Future of Veritasium”

Since this resource hasn't already been mentioned... https://www.feynmanlectures.caltech.edu/ in particular, there's "Feynman's Tips on Physics" https://www.feynmanlectures.caltech.edu/TIPS_toc.html and https://www.feynmanlectures.caltech.edu/info/exercises.html...

I have used Hewitt for the past four years for a college conceptual-physics course (focusing on mechanics and waves). It is a really good book, although there are some sections that could be revised. A comparable book that I have used for another conceptual-physics class at another institution...

First, I acknowledge what you say about spacetime diagrams being confusing. So, some of my efforts have tried to develop additional geometric intuition, not found in typical references. Second, I do wish to point out that a "PHY-101 position-vs-time graph" is also a diagram with a non-euclidean...

Along the lines of @Ibix 's construction of the "perpendicular", the essential part of the construction is 1. constructing the light-cones of two events on an inertial worldline, then 2. constructing the hyperplane that contains the intersection of those light-cones 3. constructing the...

Given a line, to draw a "perpendicular [to it]" in Minkowski spacetime... from my answer https://www.physicsforums.com/threads/orthogonality-in-minkowski-spacetime-meaning-visualization.1016318/post-6644678 , use Minkowski's construction In other words, draw a "circle" (in Minkowski...

In my opinion, you need to make use of the "Minkowski spacetime diagram", as @Ibix suggested in the older thread #10 in The Einstein Clock aka Light Clock . As @Dale said in #3 in the current thread, the light clock works. The following animated and interactive Minkowski diagrams of a...

I stumbled upon a brief video clip of C.N. Yang talking about Fermi in a 1970 film about Fermi. The World of Enrico Fermi (1970) &t=36m57s There are numerous other physicists in the video.

These are covers by Richard Cheese & Lounge Against The Machine ( Mark Jonathan Davis ) . https://en.wikipedia.org/wiki/Richard_Cheese https://www.youtube.com/RichardCheese (2004) Richard Cheese "War Ensemble" from the album "I'd Like A Virgin" (2004) #2,183 War Ensemble (2023) Slayer -War...

This may be enlightening...

"Alison Hell" (1989) from https://en.wikipedia.org/wiki/Alice_in_Hell https://en.wikipedia.org/wiki/Annihilator_(band) Annihilator - Alison Hell [OFFICIAL VIDEO] - Alison in Hell - Annihilator - Frankfurt 29.06.1989 - &t=20m15 - Jeff Waters (Annihilator) performing Alison Hell from the Album...

Strange… when I posted, the last post was from October. I’m usually pretty good at referencing previous posts… or avoiding reposting current events. Apologies. (Things have strange the last few days. I had to log back into my account on different devices. Maybe I have to manually-refresh old...

https://en.wikipedia.org/wiki/Take_On_Me (1984) https://en.wikipedia.org/wiki/A-ha a-ha - Take On Me (Official Video) [4K] (2.3B views) - a-ha - Take On Me (Live 8 2005) (2024) Pacifica - Take On Me (Official Live Video) - Pacifica Take On Me (A-Ha cover) Toronto, Adelaide Hall, June 6...