Zacharias Janssen (1585 – pre-1632) was a Dutch spectacle-maker from
Middelburg associated with the invention of the first optical ...
Zacharias Janssen was born in 1580 in the country Windmills, Holland, and died
at the age of 58 years or more precisely in 1638. is a scientist from the ...
Hans and Zacharias Janssen were a Dutch father and son accredited with the
creation ... Records detailing Zacharias' life were destroyed during the bombing
A: The cell theory states that the cell is the basic unit of life. Hans and Zacharias
Jansen greatly contributed to the various parts of this theory by invent.
Zacharias Janssen, probably with assistance from his father Hans, is credited
with the invention of the compound microscope. By introducing a device that ...
Janssen was the son of a spectacle maker named Hans Janssen, in Middleburg,
Holland, and while Zacharias is credited with inventing the compound ...
Jan 22, 2013 ... He was the son of a spectacle maker named Hans Janssen. Much of what is
known about Zacharias life was lost due to fires that ensued after a ...
Dutch born Zacharias Janssen is given credit as the inventor of the compound
microscope. Some believe his father, Hans Janssen, to have helped. The worked
Jan 14, 2008 ... Zacharias Janssen (1580-1638) is generally credited with inventing the
compound microscope in the late sixteenth century. Eyeglasses were ...
Biography. Zacharias Janssen was born in The Hague. Local records seem to
indicate he was born in 1585 although a date of birth as early as 1580 or as late