He also wrote the finest single work of sacred music in history, the Mass in b minor, which has been argued by many musicologsts and composers to be the single greatest work of music of all time, in any genre, in any style. Whereas, most composers did not typically relish complexity, Bach was at home in it.
It is difficult to say who invented the compound microscope. Dutch spectacle-makers Hans Janssen and his son Zacharias Janssen are often said to have invented the first compound microscope in 1590, but this was a declaration made by Zacharias Janssen himself during the mid 1600s. The date is unlikely, as it has been shown that Zacharias Janssen actually was born around 1590.
You're probably most familiar with optical microscopes (also called light microscopes). This type of microscope magnifies specimens through the use of lenses and visible light. The oldest and simplest in design, this is the microscope most likely to be used by students, hobbyists, and certain types of scientists. We divide optical microscopes into three main categories: Compound Microscopes - Most people immediately recognize a compound microscope from seeing them in movies or using them in their student days. The original microscope design was a compound optical, and it's still the most commonly used today.