This is an educational video on YouTube describing how the technology of superconductors in magnetic levitation works. It starts off by showing a futuristic flying car, then describing how this technology might one day...

This webpage, from Hyperphysics, describes a pendulum and provides a formula for its period. The page includes a calculator to obtain the period from the pendulum's length and the acceleration of gravity.

This site, created by Tom Roger of Intuitor.com, is dedicated to describing the poor physics that can be found in many movies. It includes general discussions of common movie mistakes, with simple but thorough...

Created by David P. Stern this is the first of three linked web pages. The one listed introduces the concept of mass and the question of how it may be measured without recourse to gravity, e.g. in the weightless...

Authored and curated by David P. Stern, this is a lesson plan for teaching Newton's formulation of gravity. It is linked to textual reference materials about the theory and history of gravity. The motion of astronomical...