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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 ...

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

Microscope History: Two Dutch spectacle makers, Hans and Zacharias Jansen ( sometimes spelled Janssen) are credited with inventing the first microscope in ...

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

Zacharias Janssen is generally believed to be the first investigator to invent the compound microscope. However, because the accomplishment is generally ...

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

Lens Crafters Circa 1590:The Invention of the Microscope. ... dates back to the late 16th century and a modest Dutch eyeglass maker named Zacharias Janssen .

classroom.synonym.com/did-zacharias-janssen-contribute-microbiology-18272.html

Zacharias Janssen was a spectacle maker in the late 16th and early 17th century. He is credited with making the earliest compound microscope in the 1590s.

classroom.synonym.com/did-zacharias-janssen-contribute-microbiology-41180.html

Zacharias Janssen, probably with assistance from his father Hans, is credited with the invention of the compound microscope. By introducing a device that ...

www.preceden.com/timelines/46013-contributions-to-cell-theory

Zacharias Janssen. 1590. Janssen's invention of the microscope , with the aid of his father Hans, allowed English scientist Robert Hooke to use a primitive ...

socratic.org/questions/who-were-hans-zacharias-janssen

Mar 13, 2016 ... Zacharias Janssen himself, and his father Hans, were 2 Dutch spectacle makers, who in 1590, invented the compound microscope, and they ...