Direct action pumps and suction pumps are among the simplest water pumps.
A force can be measured by measuring the twisting of the torsion wire in a torsion balance.
Waves are formed when a disturbance propagates through a medium.
In rock-paper-scissors, the least popular choice of players is paper. But is it really the...
What should we look out for in wine cellars? In this experiment we produce carbon dioxide with...
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.
Is it possible to turn pure water into a soft drink in a few seconds?