This apparatus is used to demonstrate and study the motion and behavior of gas molecules. It includes a transparent cylinder with a vibration platform, small steel balls and a styrofoam float. Once the vibration platform is engaged, the steel balls start bouncing and pushing the floating plug upwards. Intensity of vibrations can be adjusted with an included potentiometer.
Requires a 4 to 12 V DC power supply (or battery pack).
Make the coolest 3D pin art on your desk with this amazing desk toy.
An unconventional ball-tossing, head-catching challenge for 2 players or teams!
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.
See the solar system in action!
Easily assemble a working alarm motion detector!