Zacharias Janssen was the first person to invent the optical telescope. He is also known as the inventor of the compound microscope.
Hans and Zacharias Janssen invented the first compound microscope.They did not discover it.
they did something about cells......I think -1950. Dutch eyeglass makers, such as Zacharias Janssen ( exact dates unknown ), invent the first compound microscopes, by lining up two lenses to produce extra-large images.
Combined too convex lenses within a tube, thus constructing the forerunner of the compound microscope
I want to discover a previously unknown planet with my new telescope.
paulino hipolito discover the medicinal plants in phlippines
hans janssen is the brother of zacchariah janssen
Hans and Zacharias Janssen invented the first compound microscope.They did not discover it.
Zaccharias janssen
Helium was discovered in 1895.
in manila
Zacharias Janssen discovered the compound microscope
In our sun.
Hans Janssen was one of three Dutch lens makers variously credited with the invention of the microscope itself. The other two are Sacharias Janssen, his son, and Hans Lippershey.
Pierre Janssen discovered the lines of helium in the spectra of the Sun on 18 August 1868 at Guntur (India).
question for you what did the jansen brothers discover?
Famke Janssen's birth name is Famke Beumer Janssen.
Kitty Janssen's birth name is Janssen, Catharina Thecla Maria.