A short animated film showing the electrical flow within a rubidium clock.
A rubidium clock or rubidium standard is a frequency standard in which a specified hyperfine transition of electrons in rubidium-87 atoms is used to control an output frequency. It is the most inexpensive, compact, and widely used type of atomic clock, used to control everything from television stations, Sat Nav stations and GPS.
This clip is likely from a longer film explaining the principles behind atomic clocks, how they work and why they are important.
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