Researchers have developed portable atomic clock to offer accurate timekeeping at sea

Researchers have developed portable atomic clock to offer accurate timekeeping at sea.
A new study published in Journal Nature introduced a different kind of portable optical atomic clock that can be used onboard ships.
This is the most performant optical clock based at sea and represents a significant advancement in optical timekeeping.
Atomic clocks are a critical component of a Global Positioning System (GPS).
The researchers conducted initial tests of atomic clocks at sea at the U.S. National Institute of Standards and Technology (NIST) in April 2022.
Optical atomic clocks are more accurate. It uses coherent light to achieve higher accuracy in two main ways.
Strontium (Sr) is the most common atom used in optical atomic clocks.
Atomic clocks use atoms to measure time. The most popular design of atomic clock uses atoms of an isotope of caesium, Cs-133.
Researchers at the Indian Institute of Science Education and Research, Pune, are working on developing a strontium optical atomic clock.