The Jumping Ring @QuantumBoffin

Uploaded November 2011 | Updated September 2026, 54 minutes ago

An Aluminium Ring is placed on top of a coil. When an alternating current is supplied to the coil the ring floats.

Dropping a magnet down a copper tube: A demonstration of Lenzs law.

The Pressure Law: Heating a gas at constant volume

$Total Internal Reflection An experiment demonstrating the total internal reflection of light inside a glass block. An angular scale is provided allowing the critical angle of the glass to be measured and the refractive index of the glass to be determined.$