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en.wikipedia.org/wiki/Zacharias_Janssen

Zacharias Janssen (1585 – pre-1632) was a Dutch spectacle-maker from Middelburg associated with the invention of the first optical telescope. Janssen is  ...

www.history-of-the-microscope.org/hans-and-zacharias-jansen-microscope-history.php

Although Zacharias Jansen's life was previously documented, many of the archives ... although Boreel did not see the microscope for himself until years later.

micro.magnet.fsu.edu/optics/timeline/people/janssen.html

Zacharias Janssen is generally believed to be the first investigator to invent the compound microscope.

micro.magnet.fsu.edu/primer/museum/janssen.html

This page illustrates the first known compound microscope, build by Zacharias Janssen around 1590.

www.aps.org/publications/apsnews/200403/history.cfm

Janssen was the son of a spectacle maker named Hans Janssen, in Middleburg, Holland, and while Zacharias is credited with inventing the compound ...

www.ib-article.com/2012/07/biography-zacharias-janssen-inventor-of.html

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 ...

www.livescience.com/39649-who-invented-the-microscope.html

Sep 13, 2013 ... By Lauren Cox, Live Science Contributor | September 13, 2013 08:20pm ET ... Zacharias Janssen, credited with inventing the microscope.

www.answers.com/Q/How_did_zacharias_janssen_die

Hans Janssen and his son Zacharias Janssen, Dutch spectacle-makers, are frequently cited as having ... Zacharias Janssen did not obtain a formal education .

www.ask.com/youtube?q=Where+Did+Zacharias+Janssen+Live&v=Kzw1IYAEm9I
Aug 11, 2017 ... ... did zacharias janssen contribute to microbiology who invented the microscope ? Live science. 1590 dutch lens grinders hans and zacharias ...