Matches in DBpedia 2014 for { ?s ?p An atomic fountain is a cloud of atoms that is tossed upwards by lasers in the Earth's gravitational field. If it were visible, it would resemble the water in a fountain. While weightless in the toss, the atoms are measured to set the frequency of an atomic clock.The primary motivation behind the development of the atomic fountain derives from the Ramsey method of measuring the frequency of atomic transitions.. }
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- Atomic_fountain comment "An atomic fountain is a cloud of atoms that is tossed upwards by lasers in the Earth's gravitational field. If it were visible, it would resemble the water in a fountain. While weightless in the toss, the atoms are measured to set the frequency of an atomic clock.The primary motivation behind the development of the atomic fountain derives from the Ramsey method of measuring the frequency of atomic transitions.".