In 1931, electromagnetic lenses helped scientists see a world ordinary microscopes could not reach

In 1931, physicists Knoll and Ruska unveiled the first electron microscope, revolutionizing science by using magnetic lenses ...
Hackaday

Compound microscope

Humans have always wanted to make small things bigger. To see that which is unseen with the naked eye. The inventor of the original microscope happened sometime in the 1600’s, though the inventor is ...