300 million strontium atoms (IMAGE)

University of Copenhagen - Faculty of Science

300 million strontium atoms

Caption

The luminous ball in the middle, called a "magneto-optical trap" (MOT),  consists of approximately 300 million strontium atoms suspended in a vacuum chamber cooled to just above absolute zero. This trap was used by researchers to develop new techniques for measuring time.

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Eliot Bohr

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