The discovery of Teflon

The discovery of Teflon, a polymer chemically known as polytetrafluoroethylene (PTFE), was sheer coincidence, and yet a revolutionary one. The man behind the discovery was an American chemist named Dr Roy J. Plunkett (1910–1994), who was then working for DuPont, an American chemical company.

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Discovery of Uranus

Uranus, the third largest planet, was discovered on 13 March 1781 by Sir Frederick William Herschel. Herschel also discovered the infrared radiation.

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