Microscope and telescope


Microscope and telescope

The book of science

Tom Sharp

Zacharias Janssen, Hans Lippershey, Jacob Metius, Cornelis Drebbel optics

Microscope and telescope

Optical refracting

Telescoping history


Galileo adjusted lenses for his scopes using trial and error, as the early Dutch makers might have done. Johannes Kepler and Christiaan Huygens, however, were mathematicians, and they established a theoretical understanding of how lenses worked, which resulted in improvements in magnification and clarity.

See also in The book of science:

Readings on wikipedia: