Antoni van Leeuwenhoek had what some might consider an unusual hobby for a Dutch cloth merchant in the 17th century: making simple but exquisite microscopes. His hometown of Delft in the Netherlands ...

The earliest example of a stereo microscope was designed and built-in 1671 by Cherubin d’Orleans, though it was a pseudostereoscopic design, which had major flaws. Only by application of additional ...