With just a wave of the hand, water boils inside a Styrofoam cup causing the cup to cut in half.
Fully examinable
Easy to do
Spectator can hold the cup
Perform it hands off
Spectator can examine the cup before and after the effect
With just a wave of the hand, water boils inside a Styrofoam cup causing the cup to cut in half.
Fully examinable
Easy to do
Spectator can hold the cup
Perform it hands off
Spectator can examine the cup before and after the effect