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.
The invention of the microscope allowed the first view of cells.  English physicist and microscopist Robert Hooke (1635-1702) first  described cells in 1665. ... of cork and â¦ likened the boxy  partitions he observed to the cells (small rooms) in a ...