Re: BE ALERT to short sharp stabbing pains in head!! Lucky, The reason they are suggesting an mri is for 2 reasons. The first being mris are alot more detailed than cat scans and can show things that cat scans cannot. Second they do it to cover their butts.
Quick Answer. Physicist Ernst Ruska and German engineer Max Knoll are credited with creating the first electron microscope in 1932. It permitted researchers greater magnification and resolution than traditional light microscopes.
Historians credit the invention of the compound microscope to the Dutch spectacle maker, Zacharias Janssen, around the year 1590. The compound microscope uses lenses and light to enlarge the image and is also called an optical or light microscope (vs./ an electron microscope). The simplest optical microscope is the magnifying glass and is good to about ten times (10X) magnification.