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Submarines submerge and surface by changing the average density of the hull.
It is a well-known phenomenon that the sound of an approaching sound source is higher...
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the...
Can we break a stick with the weight of only a few sheets of paper?
The three important laws describing planetary motion were formulated by Johannes Kepler.
Learn how to pierce a balloon without popping it.
Water boils at 100 degrees Celsius. But is it possible to boil water at room temperature?
Direct action pumps and suction pumps are among the simplest water pumps.