Benjamin Troth retweetet

Photo of a single atom.
This is a strontium atom, which has 38 protons; the diameter of a strontium atom is a few millionths of a millimeter.
Taken by David Nadlinger and titled “Single Atom In An Ion Trap,” the photo is the winner of the Engineering and Physical Sciences Research Council’s 2018 science photography competition. The photo depicts a single strontium atom, embedded inside a strong electric field, blasted by lasers which cause it to emit light.

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