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Why Does an Automobile Have a Carburetor?
An automobile is driven by an internal combustion engine which will work properly only if the right amounts of petrol and air are mixed…
Who Invented the Wankel Engine?
Felix Wankel, a German motor engineer, invented the rotary piston engine which bears his name. Deprived of a university education when his f
What Is Plastic?
A plastic, in the modern sense of the word, is a synthetic or man-made material which can be formed into various shapes. The first…
What Is a Detergent?
A detergent is a substance which has a power to cleanse. This description applies to soap, as well as to shampoos and washing powders.…
Who Was the Last Man to Discover a Planet?
Clyde Tombaugh, a young American research student, made the last discovery of a planet while working in 1930 at the Lowell Observatory, Ariz