What is a Leyden Jar?

The leyden, or leiden, jar was first invited in 1744 Ewald Georg von Kleist, but the next year Pieter von Musschenbroek also invited it in Leiden in the Netherlands, and thus it was named. The leyden jar was fundamental in experiments with electricity. It’s a capacitator that stores electrical engery produced by and electrode on the inside and another on the outside of the jar. For more information look here: