Nov 25, 2007 · The discussion revolves around finding the derivative of the volume of a cone, specifically in the context of related rates problems in calculus. Participants explore the implications …

Aug 29, 2025 · In Dirac's Principles of Quantum Mechanics published in 1930 he introduced a "convenient notation" he referred to as a "delta function" which he treated as a continuum analog to …

5 days ago · Dis an Apple Dis a (p)pear. The thread centers around sharing and enjoying lame jokes, with participants contributing various humorous quips and puns. The discussion explores the nature …

Jan 18, 2026 · I'm a bit of a dinosaur. I live on the trailing edge of technology but can be affected by something shiny and new. A retired millwright, machinist, welder, fabricator, mechanic and self …

Nov 19, 2023 · The discussion centers on the reaction of sodium acetate with water, exploring the resulting chemical processes, particularly hydrolysis, and the implications for solution pH. The scope …

Feb 8, 2016 · Historically, life is categorized into three broad domains: bacteria, archaea, and eukaryota. Whereas bacteria and archaea are almost all relatively simple, single-celled microorganisms, …

Sep 6, 2017 · The discussion revolves around the presence of reaction moments in thrust bearings and smooth journal bearings, as referenced in R. C. Hibbeler's textbook on Mechanics of Materials. …

Jul 20, 2009 · The discussion clarifies the distinction between the functions arctan (x) and cot (x). Arctan (x), defined as tan -1 (x), is the inverse function of tan (x), while cot (x) is defined as 1/tan (x). The …

Dec 21, 2015 · Winter is coming. First day of Winter is December 22nd. Time to learn a bit about a substance that the northern regions will encounter.

May 3, 2012 · The discussion centers around the derivation of the formula E = V/d, which relates the electric field (E) between the plates of a capacitor to the potential difference (V) and the separation …