Astrophysicists propose a new “stochastic siren” method using the gravitational-wave background from black hole mergers to ...

We have known for several decades that the universe is expanding. Scientists use multiple techniques to measure the present-day expansion rate of the universe, known as the Hubble constant. These ...

A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.

Hubble constant. The Hubble constant is crucial in understanding the rate of expansion of the universe and, by extension, estimating the universe’s age. This collaborative effort unites various ...

Studying gene expression in a cancer patient's cells can help clinical biologists understand the cancer's origin and predict the success of different treatments. But cells are complex and contain many ...

Noninvasive methods of measuring blood glucose levels have demonstrated promise in early trials and could be potential replacements for glucose monitoring in the future, according to a review. A ...

This last part of the discussion on AC characteristics measurement methods describes the short circuit and overload current characteristics, remote on/off control, and isolation voltages. It also ...

Performance management is an integral part of the workplace as it provides a platform for supervisors and managers to measure employee performance and determine whether employees are meeting the ...

Measuring phase noise with a spectrum analyzer. The primary advantage of dedicated phase-noise analyzers. The cross-correlation method. Using a spectrum analyzer is the oldest, most straightforward, ...