(2C20.31) Bernoulli’s Crocodile
Blowing air through the tube generates fast moving air under the crocodile’s eyes. Bernoulli’s principle states that an increase in the speed of a fluid occurs with a decrease in the static pressure. The crocodile’s eyes are now in a pocket of low pressure air, while the area surrounding this pocket is the higher pressure atmosphere. This difference in pressure is enough to keep the crocodile’s eyes suspended mid-air.