Maggie Koerth-Baker at 4:21 pm Wed, Jan 30, 2013
ADVERTISE AT BOING BOING!
For once, "shadow of the atom" is not just a poetic metaphor for the nuclear age. The black dot at the center of this image is, literally, the shadow cast by a single atom of ytterbium, magnified 6500 times.
Via Discover magazine
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