Uploaded December 2015 | Updated September 2026, 3 weeks ago
A re-make of the last video - as a 9V battery is short-circuited with some steel wool, a current flows through the mesh of iron fibres.
The current exerts a heating effect (i.e. Joule effect), causing the iron to react with atmospheric oxygen. The glow is characteristic of the iron-oxygen redox reaction.
This video was made with a Canon EOS 60D, an iPhone 6+ and an iPad Air, shot from three different angles.
A re-make of the last video - as a 9V battery is short-circuited with some steel wool, a current flows through the mesh of iron fibres.
The current exerts a heating effect (i.e. Joule effect), causing the iron to react with atmospheric oxygen. The glow is characteristic of the iron-oxygen redox reaction.
This video was made with a Canon EOS 60D, an iPhone 6+ and an iPad Air, shot from three different angles.
