We’re so glad to have run across this video where [Rear Admiral Grace Hopper] explains how to visualize a nanosecond. Now we had never heard of [Grace Hopper] before, but once you watch the clip ...

It is noteworthy that the same technology can be used to measure time across these different scales; atomic clocks are used to time nanosecond delays in the arrival of signals from different ...

Developed in collaboration with the National Physical Laboratory and the Indian Space Research Organisation, the draft rules ...

One nanosecond is one-billionth of a second ... levels at different altitudes using Katori's compact atomic lattice clock, which is still about the size of a household fridge.