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Water boils at 100 degrees Celsius. But is it possible to boil water at room temperature?
It is a well-known phenomenon that the sound of an approaching sound source is higher...
Is it possible to turn pure water into a soft drink in a few seconds?
Direct action pumps and suction pumps are among the simplest water pumps.
A hot air balloon is a balloon aircraft in which is lifted by hot air.
The length of the metal frameworks of bridges change when the temperature changes.
The animation shows the way forces act on wheeled vehicles and vehicles with runners.
In this experiment we prove that it is possible to cut a bottle with just a string.