The Invention of the Microscope and Telescope

Aired: 9/11/2014 | 0:04:03 | Clip
The invention of clear glass in the 13th century paved the way for innovations throughout the centuries that followed; most crucially, the development of the lens. In this clip from the 'Glass' episode, Steven explains how glass lenses inspired the creation of one of the most important scientific inventions of 16th century – the microscope.

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