Bell in a Vacuum
This is what astronauts hear on the moon. How do sound waves spread in airless, windless space? Not at all. When astronauts communicate with knocking…
Cartesian Diver
Sinks / Doesn’t Sink Sometimes called a “Cartesian diver,” this hollow body is partially filled with water and air. Depending on the pressure in the liquid,…
David versus Goliath
Who is stronger? Push the plunger down. Which of you feels like Goliath and which feels like David? The air pressure is the same in both cylinders. Their…
Higher and further
Water creates pressure. Water jets spray horizontally from the cylinder at different heights. The lower the nozzle, the higher the water pressure and the…
Magdeburg hemispheres
Air out! Hemispheres become inseparable. Through vacuum pressure, two hemispheres joined into one cannot be separated anymore. The experiment of the mayor of…
Tricky target well
Teamwork. Place a finger on the nozzle of the water jet, and a nearby nozzle’s jet will shoot even farther. Maybe. But maybe not. Which combination will…
Condiment Diver
To paraphrase French philosopher René Descartes: "I sink, therefore I am." Changes in fluid pressure affect the buoyancy of a Cartesian diver made from a…
Sigi's phenomenal oxgen show
The new oxygen show with the world-famous science show expert Sigi Hornbacher.
Acoustics
Aggregate states
Algorithms
Animals, plants, habitats
Atomic and quantum physics
Atomic structure
Automats
Biology
Buoyancy
Chaos
Characteristics of life
Chemical Reactions
Chemistry
Colors
Computer science
Cryptology
Currents
Data and information
Design elements
Earth sciences
Electricity
Electricity and energy
Electricity and magnetism
Elektromagnetismus
