Stellar Cartography: The Amazing Tech of Modern Planetariums

In 1913, astronomer Max Wolf had a modest proposal – one that called for a device capable of projecting the positions and movements of celestial bodies in the night sky. He brought the proposal to Oskar von Miller, founder of the Deutsches Museum in Munich. And because projection required knowledge of lenses and light, von Miller approached the famed German optics manufacturer Carl Zeiss.It took scientists, engineers and draftsmen five years of trial and error before they had an instrument […]