Dropping things:
Myth Busters Penny drop - Terminal Velocity
Myth Busters Penny drop - Terminal Velocity
https://www.schooltube.com/media/Myth+Busters+Penny+drop+-+Terminal+Velocity/1_7zkmk80p
https://www.schooltube.com/media/Myth+Busters+Penny+drop+-+Terminal+Velocity/1_7zkmk80p