Cool Videos

Newton's Eye Poke Experiment
Newton's Eye Poke Experiment

Repeat a classic experiment from the master himself, Isaac Newton. In 1666 Newton first performed the Eye Poke experiment, writing about it much later in his book OPTICKS. He used this experiment to support his theory that light was composed...

Teaching About Inclines
Teaching About Inclines
As part of the AAPT Films Series, James Lincoln explains the theory and laboratory techniques involved in the teaching of inclines.
Toy Box Physics: smoke rings, mushroom clouds and vortexes
Toy Box Physics: smoke rings, mushroom clouds and vortexes

This was the winning entry for the Toy Box Physics Contest by James Lincoln. He describes how vortices / vortexes are made and shows how to make them. He also shows when they occur in nature, including the mushroom cloud,...

10 Shocking Tricks with the Plasma Globe!
10 Shocking Tricks with the Plasma Globe!

Plasma is the fourth state of matter and the most common state. A very large voltage is created by a Tesla coil-like circuit and this creates a high electric field between the central electrode and the inner glass. The Field...