The second and its definition is fundamental to metrology, the science of measuring things. In fact, the meter, the kilogram, ...

A study led by Prof. Chen Hongsong from the Institute of Subtropical Agriculture of the Chinese Academy of Sciences (CAS) has ...

A new study explores the development of Fiber Brillouin Amplifier Modules (FBAMs), enhancing optical frequency transfer for ...

SOMERVILLE — Walter Sass had a leak. Or so said the readings from his water meter. In February of last year, he said, the meter showed the pipes in his Somerville home were steadily losing large ...

The climate crisis demands new ways of thinking, new ways of perceiving reality, and religion is fundamental to achieving that. Don’t have time to read about climate change as much as you’d like?

That was when Anne submitted a meter reading of 70245 to the company only for it to be mistakenly entered in the system as 72450. “This amounts to more than ten times my average reading,” Anne ...

The oscillator provides a periodic variation of some known frequency over time while the ... GPS systems with a positional accuracy of a few meters. With an optical atomic clock, you may achieve ...

In this study, a continuous-wave laser was coupled into two chip-based integrated silicon nitride microresonators to drive two dissipative Kerr soliton optical frequency combs. Their repetition rates, ...

The light transmission efficiency was examined with a laser power meter. The effects on cystometry were compared ... by the stimulation of C-fibers in the tibial nerves, with no frequency-dependent ...

But there were other looks for test gear back in the day, as this frequency counter with a readout using moving-coil meters shows. We have to admit to never seeing anything like [Charles Ouweland ...