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US scientists debut atomic clock that stays true for 100 million years straight | NIST-F4 is America’s bid for precision timekeeping dominance, accurate to 2.2 parts in 10 quadrillion and critical for finance, GPS, and data centers.
IST’s new atomic clock, NIST-F4, is so precise it would only be off by one second if it had started ticking 100 million years ago.
This month, NIST scientists officially submitted it to the International Bureau of Weights and Measures (BIPM) for certification as a “primary frequency standard,” a title reserved for the most elite atomic clocks on the planet. As they rise and fall, they pass through microwave radiation tuned to a frequency that makes the atoms shift their energy state — a transition that defines the “tick” of the clock. With a deep love for all things tech and science, he has spent years decoding the latest innovations and exploring how they shape industries, lifestyles, and the future of humanity.
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