Solve the classic physics problem of equilibrium for a leaning ladder! This guide helps you understand how to calculate the forces acting on a ladder in equilibrium, considering friction, normal force ...

The image illustrates the experimental set-up: (a) Cut-away schematic of the floating sprinkler, (b) Flow control apparatus operating in suction mode, and (c) Flow imaging with a laser sheet ...

(via Sabine Hossenfelder) Progress in the foundations of physics is moving slowly. And yet it moves. Today I look at the five biggest problems in physics, what their status is, and how long it will ...