This is a standard DC power jack that can be mounted on a chassis for your next hobby electronics project. Measures 2.1mm.
Learn all about Newton’s Laws and Energy conservation.
A beautiful desk toy for your favorite person’s office!!
Use this kit to conduct experiments with models to learn about forces and simple machines!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
The Wimshurst Machine is a high quality static machine for student labs.
Get one of the craziest and coolest kaleidoscopes around!