cesium clock
[/ˈsiːziəm klɒk/]
nounpl: cesium clocks
relógio de césio
1. An atomic clock that uses the vibration frequency of cesium-133 atoms as its time standard, providing extremely accurate timekeeping
The cesium clock is the international standard for defining the second in the SI system.
O relógio de césio é o padrão internacional para definir o segundo no sistema SI.
2. A precision timekeeping device used in scientific research, telecommunications, and GPS systems to maintain synchronized time
Modern cesium clocks can measure time with an accuracy of one second in several million years.
Os relógios de césio modernos podem medir o tempo com precisão de um segundo em vários milhões de anos.
Cesium clocks are fundamental to modern technology and are particularly important in the United States and internationally for defining the official second through NIST (National Institute of Standards and Technology). In Brazil, these devices are primarily discussed in academic and technical scientific contexts rather than in everyday language.
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