him and his son helped invent the compound microscope by putting two lenses together warning they did not invent the microscope but did invent the compound microscope
Hans and Zacharias Janssen invented the first compound microscope.They did not discover it.
Combined too convex lenses within a tube, thus constructing the forerunner of the compound microscope
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.
Zacharias Janssen was the first person to invent the optical telescope. He is also known as the inventor of the compound microscope.
some scientists that helped the developement of the microscope were1590-Hans and Zacharias Janssen1609-Hans Lippershay1665-Robert Hooke1674-Antoine Luewenhoek1839-Theodore Schwaan1839-Matthias Schleiden
Hans and Zacharias Janssen invented the microscope
Hans Janssen of gun-making fame was born in the mid-1800s.
Hans Janssen was the supposed creator of the microscope, along with his son, Zacharias Janssen. Actually, Hans Janssen was the son of Zacharias Janssen, not the other way around. And yes they did invent the first Compound Microscope in the year 1590.
Hans and Zacharias Janssen invented the first compound microscope.They did not discover it.
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.
hans janssen is the brother of zacchariah janssen
Hans Janssen and his son Zack Harris Janssen.
Hans and Zacharias Janssen invented the compound microscope in 1595.
Combined too convex lenses within a tube, thus constructing the forerunner of the compound microscope
During 1580 â?? 1638, Hans Janssen stayed in Middleburg in the Netherlands. He was famous for his invention of the first compound microscope.
Hans Lippershey ,Hans Janssen 1595
Hans Lippershey y Hans Janssen