Tug of War

By Luigi Fortunati on Fri Dec 19 01:30:40 2025

Latest reply by Jonathan Thornburg [remove -color to reply] on Sun Jan 11 19:51:49 2026

Numbers as Symbolic Constructs

By street on Sun Dec 14 05:51:37 2025

Latest reply by street on Sun Dec 14 05:51:37 2025

Re: The momentum - a cotangent vector?

By ram on Fri Dec 5 13:41:20 2025

Latest reply by ram on Fri Dec 5 13:41:20 2025

Acting forces

By Luigi Fortunati on Sat Nov 22 12:18:46 2025

Latest reply by Luigi Fortunati on Mon Dec 1 11:09:10 2025

Black holes passing through humans and a planet

By Thomas Koenig on Sun Nov 23 23:07:44 2025

Latest reply by Thomas Koenig on Sun Nov 23 23:07:44 2025

Inertia and the Principles of Dynamics

By Luigi Fortunati on Sun Nov 2 12:52:55 2025

Latest reply by Jonathan Thornburg [remove -color to reply] on Tue Nov 11 00:02:12 2025

Towed car

By Luigi Fortunati on Sat Sep 27 22:43:24 2025

Latest reply by Luigi Fortunati on Mon Oct 27 00:00:20 2025

Is force transmitted?

By Luigi Fortunati on Sat Oct 11 17:15:48 2025

Latest reply by pa on Wed Oct 15 12:23:05 2025

Two equal and opposite forces

By Luigi Fortunati on Mon Sep 29 21:40:54 2025

Latest reply by Luigi Fortunati on Mon Sep 29 21:40:54 2025

The Lindblad Picture. Solving The Riddles Of Time And Quantum

By Lydia Marie Williamson on Thu Aug 28 09:05:40 2025

Latest reply by Jos Bergervoet on Fri Sep 19 13:17:54 2025

Anti Gravity

By street on Wed Sep 10 09:20:47 2025

Latest reply by street on Wed Sep 10 09:20:47 2025

The dynamometer

By Luigi Fortunati on Thu Aug 7 11:46:25 2025

Latest reply by Luigi Fortunati on Sat Aug 9 22:11:54 2025

Where's "left"?

By ram on Sat Aug 2 21:57:54 2025

Latest reply by ram on Tue Aug 5 06:43:19 2025

The isolated system

By Luigi Fortunati on Fri Jul 25 14:36:16 2025

Latest reply by Luigi Fortunati on Thu Jul 31 06:39:40 2025

Rate of Change

By Street on Sun Jul 27 11:18:58 2025

Latest reply by Street on Sun Jul 27 11:18:58 2025

Re: Action and reaction

By Mikko on Sat Jul 5 13:43:52 2025

Latest reply by ram on Mon Jul 7 10:54:39 2025

Re: derivation of Newton's 3rd law from 2nd law

By Tom Roberts on Fri Jul 4 19:21:47 2025

Latest reply by Luigi Fortunati on Sat Jul 5 12:01:37 2025

Re: The experiment -- action + reaction

By Mikko on Sat Jul 5 09:42:33 2025

Latest reply by Mikko on Sat Jul 5 09:42:33 2025