What is lean enterprise and why is it essential your businesses' survival? Read part one in a series of nine articles about lean enterprise from VIPGroup.
The numerical aperture of a microscope objective defines the objective's resolution. Each microscope objective has a minimum and maximum magnification necessary for the details in an image to be resolved. A simple formula for the minimum value is (500 x NA). And for the maximum magnification (1000 x NA).
An electron microscope uses electrons to observe the structure and morphology of things at small scales (down to a fraction of a nanometer). The main types of electron microscopes are the Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM) and the Scanning Transmission Microscope (STEM).