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Inventors have been long mulling over the idea of constructing a device which would work forever...
A two-stroke engine is a type of internal combustion engine with a cycle of only two...
Radial engines are used primarily in airplanes and helicopters.
A type of rotary engine of high efficiency
This animation demonstrates the type of engine most commonly used in cars.
How to rotate a pinwheel and a spiral without touching them.
In this experiment, we study the properties of hydrogen gas.
Is there a difference between the weight of a plastic bottle filled with air and the weight of a...