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Mrs Roberts: What do you think you're made of? Mr Spellman: Big question. Grit, determination, hard-working, handsome, charming, funny. Mrs Roberts: Well, I guess. But you're actually made of atoms.

Capturing an image of an atom is difficult enough, but an atom's shadow? Considering that the wavelengths of visible light dwarf the size of atoms by orders of magnitude, one might think that it ...