Zacharias Janssen:

ENGLISH WORK ELEVENTH GRADE "A"

MEMBERS:

• Miguel Adolfo González Sotelo
• Jeremy Josué Pérez Aáruz
• Alberto César Sánchez Tapia
• Iván Francisco Selva Gómez

 

Zacharias Janssen:

He was born in Middelburg, the Netherlands, in 1588 and died in that city in 1638. He came from a family that made lenses. His father was Hans Janssen. Although the origin of the microscope is a matter still uncertain, is regarded as the inventor of the compound microscope (with two lenses), perhaps with the help of his father in 1595.

The recognition of this invention is usually given to Zacharias Janssen in Middelburg in the Netherlands. Since Zacharias was very young at the time, Hans Lippershey may manufacture the first, but young Zach took over production.

The first microscopes compounds produced by Janssen were simply a tube 45 cm long and 5 cm in diameter with a convex lens at each end. This instrument came to be between 3 and 9 increases depending on the size of the aperture. Nineteenth century compound microscope.

There is a legend that says that Zacharias Janssen, in his childhood, he discovered the microscope while playing with another child with damaged lens in the studio of Hans Lippershey. They held two lenses in their eyes in the direction of the vane of the local church and watched as it seemed close. Lippershey, of course, saw this toy a useful tool to make money and named it the optical tube. But this legend may
be apocryphal, because in reality the source of the microscope is still under debate. The Dutch diplomat William Boreel later, Lippershey testify that he had stolen the idea of Janssen instrument when he was only 2 years old.

However, there are serious reasons based on the personality of Zacharias Janssen to believe that reality is not the author of the microscope, it had a reputation for dishonesty, and who made fortune based on fake Spanish copper coins and then continued counterfeiting coins gold and silver. 

With the first microscope began to be numerous bodies, which were not visible before, and began to study what we already saw before. New colors appeared, ducts and blood vessels in all bodies, new living things appeared in such quantities that outnumbered those who previously knew each other.

THE EVOLUTION OF  THE MICROSCOPE