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Gold atoms being pulled apart

Explanation This video was shows an array of gold atoms under a transmission electron microscope. A cool part aspect of this technique is that it allows you to see individual atoms, i.e. the black dots. However the beam of electrons you use to image the sample carries quite a punch. In this case, the beam was made strong enough to heat up and rip off atoms from the sample. As the clip rolls on, you see that the atoms in the middle get blurrier and then disappear. The reason they look blurrier is that as they get heated up, they start jiggling around, which causes blurry streaks in each frame. The atoms in the thin strip in the middle move around more since they have fewer neighbors to lock them in space. Finally, after enough energy is supplied, the atoms fly away as they sublime off. The neat result of this clip is that it shows you what it really means for a gap to form between matter at the atomic scale. Source: The electron microscopy facility at TU Delft http://nchrem.nl/movies/nanogap-forma...