An affordable, lightweight, plastic, 4-bladed propeller that can be attached to the end of a DC motor. Use it to propel small cars, boats, a fan, or even a wind generator! Great for use in tandem with a solar cell or a battery pack. Compatible with a wide variety of science fair projects.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This simple but amusing magnetic toy will keep you busy for hours!
Build a hand that realistically moves its fingers using shape memory allow technology!
Comprehensive collection of 30 fossils.
This mirascope creates a 3D hologram image!
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!