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The three important laws describing planetary motion were formulated by Johannes Kepler.
Can a candle be re-lit if the flame of the match does not even touch it?
Is a matchbox able to imitate the croak of frogs? With the following experiment we...
Submarines submerge and surface by changing the average density of the hull.
A hot air balloon is a balloon aircraft in which is lifted by hot air.
What should we look out for in wine cellars? In this experiment we produce carbon...
Direct action pumps and suction pumps are among the simplest water pumps.
How does a piece of a cork behave on the surface of a glass of water? You can examine...