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Janssen
Janssen
your momma bastard........its Janssen
ask your teachers!! that's not even an answer! Come on!
Hans and Zacharias Janssen invented the first compound microscope in 1590 by placing two lenses in a tube.
It is thought that Zacharias Jansen's father, Hans, helped him build the first microscope in 1595
Zacharias Janssen is the right answer, if your doing the cross word,(:
In 1888, Adolf Fick was the first to successfully fit contact lenses.
Lyndon B. Johnson was the first president of the United States to wear contact lenses.
in 1844..
glasses
Antony Van Leeuwenhoek, a Dutch scientist, became the first man to make and use a real microscope. He made superior lenses, by grinding and polishing a small glass ball into a lens with a magnification of 270x.