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Mysteries of vernacular: X-ray - Jessica Oreck and Rachael Teel

TED-Ed Lesson: The story of the word X-Ray is one of great thinkers. French philosopher Rene Descartes isolated the letters X, Y and Z to stand for unknowns, and centuries later, Wilhelm Röntgen discovered the X-ray, using the X for the unknown nature of the radiation. Jessica Oreck and Rac…

Publisher
TED Ed

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