Physicists Create World's Smallest Incandescent Lamp

Physicists have created the world's smallest incandescent lamp using a filament made from a single carbon nanotube only 100 atoms wide. Invisible to the untrained eye, the filament appears as a tiny point of light when the lamp is turned on. Even with the best optical microscope it is only just possible to resolve the nanotube's nonzero length. The team uses an electron microscope capable of atomic resolution to image the filament's true structure.

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