jan 1, 1590 - Hans and Zacharias Janssen Created the First Compound Optical Microscope
Description:
They were experimenting with lenses in tubes and found that the object at the end of the lens was enlarged more than a magnifying glass. To produce this microscope, they placed two convex lenses inside of a tube.Added to timeline:
Date:
jan 1, 1590
Now
~ 436 years ago