Tank and engine animation of the BMW Hydrogen 7 car. There are currently several hundred hydrogen vehicles in operation throughout the world. Soon it will number several thousand. There are also many hydrogen filling...

The introduction to this intriguing exercise and article begins "If a ball bounces an infinite number of times, it must take an infinite amount of time to finish bouncing!" This piece appeared in The Journal of Online...

This interactive presentation, created by Terry Bartelt and hosted by the Electromechanical Digital Library, discusses the history and theory of Boyle's Law. The presentation offers two different variations of the...

This is an animation of a bridge rectifier circuit or diode bridge. Voltages and parts of the circuit of this 3-D animated gif are highlighted with different colors. Current is displayed by green arrows indicating...

In 1985 an experiment, designed to unravel the carbon chemistry in red giant stars, revealed the existence of C60 or buckminsterfullerene (a special form of carbon, known also as bucky balls). This video lecture...