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In rock-paper-scissors, the least popular choice of players is paper. But is it really the...
Observe what happens when making sounds with shorter and shorter pieces of the same straw.
It is a well-known phenomenon that the sound of an approaching sound source is higher...
Can we break a stick with the weight of only a few sheets of paper?
In this experiment we prove that it is possible to cut a bottle with just a string.
In certain cases, liquids do not mix together, and form layers instead. See what happens when we...
Submarines submerge and surface by changing the average density of the hull.
The animation shows the way forces act on wheeled vehicles and vehicles with runners.