| Date | Text | |
|---|---|---|
30 Mar 1879
Bernhard Voldemar Schmidt |
birth Bernhard Voldemar Schmidt Born 30 Mar 1879; died 1 Dec 1935 at age 56. Astronomer and optical instrument maker who invented the telescope named for him. In 1929, he devised a new mirror system for reflecting telescopes which overcame previous problems of aberration of the image. He used a vacuum to suck the glass into a mold, polishing it flat, then allowing in to spring back into shape. The Schmidt telescope is now widely used in astronomy to photograph large sections of the sky because of its large field of view and its fine image definition. He lost his arm as a child while experimenting with explosives. Schmidt spent the last year of his life in a mental hospital. |
OnThisDay.net