ELECTRON MICROSCOPE · The Electron microscope was developed by Ernst Ruska and Max Knoll in 1931 and was in use in many laboratories by the early 1940s. · Objects smaller than about 0.2 µm, such as viruses or the internal structures of cells, must be examined with an Electron microscope. · Generally, Electron microscopes magnify objects 10,000× to 100,000×, though millions of times magnification with good resolution is possible. · In Electron microscopy, a beam of electrons is used instead of light. Like light, free electrons travel in waves. · The Resolving power of the electron microscope is far greater than that of the other microscopes. · Instead of using Glass lenses, an Electron microscope uses Electromagnetic lenses to focus a be...