Canadian Thanksgiving Holiday, 2004

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 […]

...And by "digs" I mean website! Thanks to all of you who've dropped in for a looky-loo while the paint dries. We're still (metaphorically) moving the furniture in, but everything is ready to roll. Stay tuned while we finish tweaking and installing new content! Thanks, Dave

Check out our circuits page for another neat one gleaned from our design notebooks. A dark-activated, chaotically activating, dual pummer. Ideal for lighting up...things!

Did you see the lunar eclipse on Monday night? I wish they had it rescheduled for Sunday afternoon, so all of us night-owls-who-have-to-get-up-early could watch that. But noooOOoOO. But at least the internet will save us. At least from information deficit. Laser Cut Helical Springs I wonder if zigzag helical springs can still travel down […]