The invented the microscope and telescope. The invented the microscope and telescope.
The dates are in dispute. The year of the single-lens optical microscope is usually given as 1590 (remarkable, in that Zacharias Jannsen's birth year is sometime between 1580 and 1588), and the year of the telescope as 1608.
the development of compound lens devices did not occur until 1600. That year, Dutch lensmaker Hans Jannsen and his son, Zacharias, mounted sliding lenses
Hans and Zacharias Janssen invented the microscope
Hans and Zacharias Janssen invented the first compound microscope.They did not discover it.
Zacharias Janssen was born In 1580.
Hans and Zacharias Janssen invented the compound microscope in 1595.
hans and zacharias
Hans janssens
they were father and son
in manila
Hans and Zacharias Janssen
zacharias and Hans janssen invented the microscope