Frost for sale!

12 April 2022

Liquid nitrogen, frozen fruit and levitating market-goers. On Friday 8 April, visitors to the weekly market in the Merenwijk district were exposed to superconductivity. What is it exactly? And what does it look like? Young and old were impressed by the experiments demonstrated by Leiden students from Rino Foundation.

A market-goer on the Human Levitator, a magnetic disc that can float two centimetres above the ground thanks to superconductivity.

The Human Levitator and the ice created in a nitrogen experiment.

Demonstration of the Leidenfrost effect (which enables you to briefly touch liquid nitrogen) and lighting the butane in soapy water.

• leiden2022
• physics
• superconductivity