Optical quantum clocks developed at the University of Adelaide have been proven to outperform GPS navigation systems by many ...

Earth is set to experience unusually short days in July and August 2025. The Moon's orbital position is subtly accelerating ...

Global positioning systems that support mapping programs are a prime example of how basic science can lead to unforeseen but ...

Back in 2023, scientists were already puzzled by the Earth’s accelerating rotation, while some speculated that global warming ...

The IPAS team with the quantum clocks Optical quantum clocks developed at the University of Adelaide have been proven to out-perfom GPS ...

July 9 could be the shortest day of your life as the Earth's accelerating rotation is expected to make today fly by quicker ...

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More information: Thomas Lindvall et al, Coordinated international comparisons between optical clocks connected via fiber and satellite links, Optica (2025). DOI: 10.1364/OPTICA.561754 ...

“The optical clock community is strongly motivated to obtain the best possible set of measurements before the SI second is ...

By comparing optical clocks in six different countries, researchers have taken a major step toward establishing a new global ...

The clocks were connected via fiber optic cables spanning thousands of kilometers across Europe and satellite-based IPPP (Integer Precise Point Positioning) technology for more distant locations.

He developed technologies that helped pave the way for the Global Positioning System and made foundational discoveries that ...