I've waited, and now it is time. With the official digital release of Avengers: Endgame, I can now analyze some scenes. I like to wait to give everyone a chance to see it first. In this epic scene, ...

The Gauss gun. A very simple, yet very cool device. Check out this video. http://www.youtube.com/watch?v=Z7CyPtF0ChA There are many other examples of this Gauss gun ...

Schematic of a single photon with zero angular momentum (green) splitting into two photons (red) with either zero or opposite angular momenta (sketched through the spatially varying color), which adds ...

A sphere moving on a smooth horizontal surface (the xy-plane) impacts a set of 13 cubes at rest on the same surface. This impacts leads to a number of subsequent impacts among these cubes. The ...

Introduction You might have seen figure skaters spinning around quickly and then tucking their arms to spin faster—or opening them to spin more slowly. This happens, thanks to a physics concept known ...

Is there a relativistic equivalent of each of Newton's 3 laws? originally appeared on Quora: the knowledge sharing network where compelling questions are answered by people with unique insights.