The first person to make the storage battery practical, with 147 patents, Edison's life is a testimony to invention. This biography, in outline form, is in two parts; go to 1879 site after this.

Build circuits with resistors, light bulbs, batteries, and switches. Take measurements with the realistic ammeter and voltmeter. View the circuit as a schematic diagram, or switch to a life-like view.

At Apple Computer's iPod site, find out about the latest iPod models, pricing, accessories and news. This site also contains links to iPod Tech Support as well as to iTunes and the iTunes Podcast Directory.

A Wikipedia article on the iPod which contains background information on the iPod name, history, capabilities, design, use and models. The multiple generations of iPod are covered as is integration with iTunes.

An electronics kit in your computer! Build circuits with resistors, light bulbs, batteries, and switches. Take measurements with the realistic ammeter and voltmeter. View the circuit as a schematic diagram, or switch to a life-like view....

Uncountable times every day "with the merest flick of a finger"each one of us calls on electricity to do our bidding. What would your life be like without electricity? Students begin learning about electricity with an introduction to the...

"Connecting learning to the real world" is the goal of the Futures Channel. Through the use of short videos, teachers can integrate real-world examples of how math and science are used in everyday life. Complete teaching guidelines...

Colonel Ulric Dahlgren, born in Bucks County, Pa., in 1842, died near King and Queen's Courthouse, Va., March 4th 1864. At the beginning of the Civil War he was sent by his father to plan and take charge of a naval battery on Maryland...