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In this experiment we prove that it is possible to cut a bottle with just a string.
What is the speed of sound? What happens when an object exceeds the speed of sound?
The three important laws describing planetary motion were formulated by Johannes Kepler.
Direct action pumps and suction pumps are among the simplest water pumps.
A hot air balloon is a balloon aircraft which is lifted by hot air.
Waves play an extremely important role in many areas of our lives.
Find out how to move the straws without touching them, using the phenomenon of resonance.
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the...