The molecules and atoms vibrate at higher temperatures and begin to push apart from each other. This phenomenon is known as thermal expansion. Simply heat the brass ball for two minutes. This will cause the ball to expand; hence it will not fit through the ring. When the ball cools down, it will once again fit smoothly through the ring. Great for the classroom or the home laboratory!
A combination of three of our great discovery toys, all in one package!
The Wimshurst Machine is a high quality static machine for student labs.
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
The large realistic model has removable organs that can be studied and set back into the correct position.
This advanced physics kit is perfect for older children already versed in physics knowledge!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
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