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Atomic Resolution Microscope (ARM) provides a resolution of 1.6 angstroms, giving scientists an atom-sized view of materials, 1994. ARM is the first electron microscope able to see individual atoms. The ARM works by detecting electrons which have been shot through a sample. Electrons are fired out of particle accelerator with an energy of a million electronvolts, and are focused by magnetic fields that act as lenses. The image appears on the monitor at lower left; computers interpret the images to provide models of the sample. The ARM can resolve details as small as 0.16 billionths of a meter across, with atoms appearing as black and white dots against a grey background.
