"Ed Sobey" downloads

How does a radio-controlled car work? Author Ed Sobey guides readers as they take apart and rebuild their own radio-controlled...

You can find motors in countless household devices. Discover how they work as author Ed Sobey guides young readers through...

There’s more than one way to power a toy boat. Electric motors, balloons, gears, water jets, belt drives, chemical reactions,...

Build your own robot! Learn what makes a robot work. Then design, build, and program your very own robot. The...

Give renewable energy a try! Solar, wind, and hydropower can be used to offset the use of fossil fuels. The...

How does a microwave heat food? Why is only one side of aluminum foil shiny? and Is it better to...

Illustrating how a fire alarm detects smoke and what the “plasma” is in a plasma screen television, this fascinating handbook...

Written for mechanical novices who may not know their catalytic converters from their universal joints, this practical guide helps teach a basic...

This fascinating handbook answers the questions of anyone who has ever wondered about the many strange devices found along the...

With more than 160 entries detailing everything from the junk buried in desk drawers to that mysterious box blinking away...

Perfect for the do-it-yourselfer, this handy guide to household electronics gives the weekend workbench enthusiast a multitude of ideas on...

A Selection of the Scientific American Book ClubProfiling 50 of the world’s most popular playthings—including their history, trivia, and the...