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Newton, one of the greatest physicists, has laid down the basics of mechanics. In this video we...
This lesson presents timekeeping devices and the types and units of time measurement.
This lesson presents the concept of speed.
How can this pendulum accurately measure time in seconds?
This animation introduces the studies of astronomers and physicists whose works...
Observe what happens when making sounds with shorter and shorter pieces of the same straw.
Find out how to move the straws without touching them, using the phenomenon of resonance.
The three important laws describing planetary motion were formulated by Johannes Kepler.