morgan_greywolf writes: "You’re never too young (or too old) to start learning the joys of electronics. You don’t need to know how to solder, or even how to plug circuit components into a breadboard. As long as you’re past the “I’m going to stick this up my nose” phase, this homemade playdough circuit project is a great way to introduce kiddos and adults alike to basic circuits and electricity."
Ana10g writes: Are you looking for a thruster for that spacecraft you've been building on the side? Matthew Krolak's How-To Article details how to build a Magnetoplasmadynamic Thruster may have the answer. It actually seems to be fairly straightforward, and the parts are readily available.