Sep 28, 2020 · just passing this on, strangely, it doesn't state the author "My heart is filled with sorrow as I find myself having to pass on some very sad news. I have just heard of the death, …

Jul 29, 2013 · To this day I have yet to successfully come up with a description of what I do at my job, that most people can understand. I've tried several approaches of explanation. Still no …

Apr 6, 2014 · Fermat basically already had some stuff about derivatives in some form and solving for the max or min by finding a horizontal tangent line. Some versions of integration had …

Jan 22, 2025 · 5. Some start with life experiences. John Lennon's She Said She Said is about a conversation with Peter Fonda. 6. I'm very impressed with some stadium rock written by an AI. …

Mar 24, 2018 · The wheelbarrow and its contents have a mass of m = 63 kg with a center of mass at G. Determine the normal reaction on the tire and the vertical force on each hand to hold it at …

Dec 30, 2024 · Regarding the Minkowski space, in the work of L. D. Landau and E. M. Lifshitz [L. D. Landau and E. M. Lifshitz, The Classical Theory of Fields, Third Revised English Edition …

Feb 22, 2025 · There's a close analogy with lifting an object in a gravitational field here. You have to apply a force to keep the object in a fixed position, you have to apply more force to start it …

Nov 20, 2014 · D = base - 1 I'm interested in Sheldon's (The Big Bang Theory) favorite number: 73 (decimal) 73 is the 21st prime, while the reverse of 73: 37 is the 12nd prime. And 7 * 3 = …

Feb 22, 2025 · That is a good question. The key point in the question is that in flat spacetime ##x## is a four-vector so ##g_{\mu\nu}x^\mu k^\nu=\phi## clearly requires that ##k## also be …

Nov 16, 2024 · @jedishrfu posted a small summary of the main rules to a new poster. I think this is a really good idea. New posters do not read the rules and they get upset when what seems …