Demonstrations with a hair-drier How to rebuilt a hair-drier
The baloon over the hair-drier	The free-style over the hair-drier
The baloon under the hair-drier	The weather-cock
Anemometers	Flowing round solid bodies
The paradox of two bottles	The paradox of a sailing ship
The sailing truck	Balancing the paper ball
(c) Vaclav Piskac, 2003 Brno - Czech Republic