Fixing this will be a breeze! Huh-huh. This is e-e-a-sy, for electricity to flow you need a conductor. That plastic bottle - that’s an insulator - they don’t let electricity pass through.

Lucky for this lot, electricity moves through metal too. Electricity, conductors and insulators work in a similar way. Copper allows electricity to pass through it quickly. It's a conductor.

University of Cambridge researchers have discovered that a material already known for its peculiar electrical properties appears to behave as both a conductor and an insulator at the same time.