Barlow's wheel

Barlow’s wheel is a simple scientific device that demonstrates electrostatic principles. It consists of a rotating disk mounted between two conductive brushes connected to a power source. When the electrical current flows, it charges the disk, creating an electric field. This causes the disk to spin due to the forces between the charges and the electric field. Essentially, it visualizes how electricity can produce motion through electrostatic attraction and repulsion, illustrating fundamental concepts of electromagnetism and electrostatics in an accessible way.