Science · Static Electricity
John Travoltage
Swing the foot across the carpet to build up charge, then raise the hand toward the doorknob to discharge with a spark.
See what happens
Charge and discharge
Scuff the foot on the carpet, then reach for the doorknob.
Static electricity
Electrons
0 / 100
Charge
Neutral — no charge
Observation
Scuff the foot on the carpet to add electrons to the body.
The body is neutral. Move the leg down onto the carpet to add electrons.