This wickedly inventive guide offers 19 build-it-yourself projects featuring high-tech devices that can map, manipulate, and even improve the greatest computer on earth-the human brain. Every project inside Mind Performance Projects for the Evil Genius is perfectly safe and...

Energize your next unit on electricity with hands-on activities to explain the fascinating phenomenon of electromagnetism. Students are introduced to the factors that determine the strength of electrical coils, and they use readily available materials to build a simple motor and a generator. Topics covered include circuit breakers, mag-lev...

In Visual...