World’s Smallest Working Hot Bulb Model Engine!

Hot Bulb Model Engine

Hot Bulb Model Engine The hot-bulb engine is a type of internal combustion engine, in which fuel is ignited by being brought into contact with a red-hot metal surface inside a bulb, followed by the introduction of air (oxygen) compressed into the hot-bulb chamber by the rising piston. World’s Smallest Working Hot Bulb Model Engine! In the video below, you

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