a man conducting an experiment involving a battery and a penny
a man does science
a man is rubbing his fingers together to produce smoke and then making a battery rotate to create a tiny motor
a man is rubbing some material and it s burning
a man makes smoke come from his fingers
a man performing an experiment using wire and batteries
a man produces smoke by rubbing his fingers together
a man rubs something in between his thumb and forefinger to create smoke
a man showing some science tricks
a person is explaining something
a person is making smoke come up from their fingers
a person is rubbing oil between two fingers
a person rubbing their fingers together
a person rubs their fingers together
a person showing magic smoke and a homer polar motor
person doing a science project
someone is doing a science experiment
someone is rubbing their fingers together
a person rubs their fingers together
a man showing some science tricks