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.
At this time, Dutch spectacle makers were experimenting with multiple lenses. Telescopes were invented in this way. By reversing a telescope the microscope was discovered! Credit for the first microscope is usually given to Zacharias Jansen in Middleburg, Holland around 1595. The Jansen microscope was composed of 3 sliding tubes, measuring 18 inches long when fully extended and 2 inches in diameter.