This fully assembled Arduino shield can drive relays, solenoids, DC and stepper motors.
A beautiful desk toy for your favorite person’s office!!
The Wimshurst Machine is a high quality static machine for student labs.
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!