The mystery of Christiaan Huygens’ flawed telescopes may have been solved
The famed 17th century scientist may have been nearsighted, a researcher contends
Christiaan Huygens built telescopes to observe Saturn in the 1600s, but they weren’t as good as those of his rivals, even though his lenses (a few shown with a portrait of Huygens) were well made. That may be because the astronomer needed glasses, one researcher proposes.
Rijksmuseum Boerhaave, Leiden