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.
This is perhaps the first recorded instance of a microscope (and, probably a telescope too). The discoverer of the cell, Robert Hooke also made his own version of the microscope, probably the first compound microscope, in 1655 AD. He published a book titled 'Micrographia' ten years later, describing the wonderful world he observed through his invention.