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How can this pendulum accurately measure time in seconds?
Newton, one of the greatest physicists, has laid down the basics of mechanics. In this video we...
Direct action pumps and suction pumps are among the simplest water pumps.
What is the speed of sound? What happens when an object exceeds the speed of sound?
This lesson introduces some basic ideas about sound.
In certain cases, liquids do not mix together, and form layers instead. See what happens when we...
Is a matchbox able to imitate the croak of frogs? With the following experiment we reveal the...
Find out whether the marble reaches the finish line faster on the straight or on the curved slope.