Pendulum project

Our GraviTrack Marble Machine Kit is our newest addition to the Marble-Drop mechanism family. Elegant, swooping hands pass marbles to each other to the top of a sweeping multi-level track, available in either solar or battery configuration! Approximately twice as wide as our spiral Solar or Battery Marble machine kits, the GraviTrack is still desk-top compact but large enough for easy mechanical assembly. Pre-order yours […]

What's so special about the new SCC3733a-MSE? Two things: It's machine-assembled with new high-quality Russian solar cells (the best commercial cells we've tested yet) It comes with a Miller Solarengine circuit pre-etched on the rear of the solarcell! We have only a limited number of these cells presently, so if you're looking for the absolutely […]

New stuff! See? Here it is, in the neat little boxes below: MaKey MaKey - Deluxe Kit $59.95 You may be the greatest living banana-pianist, but how will you ever know if you don't make yourself a banana piano? Good news, that project and countless others are easier than you think they are with MaKey […]

We are being informed that our air/courier shipments are almost back to normal. Although delivery times are still not guarranteed, most shipments should arrive on time.