A Galileo thermometer
A Lava lamp
Two liquids
Cartesian diver
Love thermometer
A drinking duck
Psychometer
Goethe thermometer
Magic sticks
Twister in a bottle
A glass of wine
Soap bubbles
Planes
Flying fan
Hair-drier and ball
Steamboat Puff Puff
Crookes' light mill
Stirling engine
Water turbine
Easter monday dousing
Intelligent metal
Elastic plasticine
Warm coffee
Sand pictures
