Slightly off-topic, yet topical... I have, over the years taught many ham-radio license classes to hundreds of people, a good percentage of them kids, generally from age 10-11 and up. Apart from the required information relevant to the actual FCC questions.. I stress science, technology, and D-I-Y projects.. from the simplest 555-based LED flasher to working radio sets and computer interfacing. I go to ham radio swap meets and buy up all the old scopes and meters I can find, and then make them available to kids for the price of promising to *use* the gear. I like to use junk printers for robot supplies, because the control and drive electronics are already there, as well as an easy way of making them move via print commands sent to a parallel or serial port of any computer. Sam and those of you who are robot aficianados... I have seem some pretty fancy devices made up of the steppers and servos from old unwanted printers... especially the big old wide carriage dot-matrix units from 10 or more years ago, whose motors were big and pwerful. And there are a few young scientists left out there, in and among the Beavis And Butthead clones thronging our schools. Sigh. Don't get me started.... Cheers John