Jacob’s Ladder – Controlling lightning
Channel: EUROfusion
Date: 2017-11-13

Jacob’s Ladder is a demonstration from the former traveling exhibition Fusion Expo that creates a sustained discharge – effectively lightning – between two electrodes. This crackling spark writhing its way up the electrodes is one of the quintessential props from early sci-fi movies.

This Jacob’s Ladder is demonstrated by plasma physicist, Peter de Vries. Dr de Vries also explains how the discharge in JET – thousands of times larger – is formed.