The definite integral for physicists — from Riemann sums to real applications
The definite integral for physicists — from Riemann sums to practical applications: displacement, work, potential energy. Step-by-step guide for students new to calculus.
How Galileo measured g — inclined planes, water clocks, and pendulums
How Galileo in 1600 measured gravitational acceleration g using inclined planes, water clocks, and pendulums — with no digital stopwatch. Includes an SVG animation of the inclined-plane experiment.