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

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 ...

The increase in switching speed offered by GaN transistors requires good measurement technology, as well as good techniques to capture important details of high-speed waveforms. This article focuses ...

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 ...

For semi-crystalline polymers, the crystallinity rate is a key parameter which directly influences mechanical properties, such as mechanical resistance or stiffness, as well as thermal and gas barrier ...

The measurement technique of an aspheric surface is mainly for the surface form and parameters. The surface form is the three-dimensional distribution of the surface in the spatial domain. The ...

A group of researchers from the California Institute of Technology (Caltech) has unveiled a pioneering method to measure soil moisture in the vadose zone-the shallow region between the earth's surface ...

Researchers discover a new correlation between aging and the effectiveness of T-Cells. The research is based on a novel technique, called iTAST (in situ TCR affinity and sequence test), that is able ...

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, ...

The actinides include 14 metallic elements in the periodic system. They include thorium, uranium, neptunium, plutonium and americium. Atoms of these elements have have many electrons, up to more than ...

It is crucial that mobile phones and other wireless devices -- so prevalent today -- have accurate and traceable measurements for electric fields and radiated power. Until recently, however, it wasn't ...