Black hole winds are no longer as they used to be

During the first billion years of the universe, winds blown by supermassive black holes at the centers of galaxies were much more frequent and more powerful than those observed in today's galaxies, some 13 billion years later. ...

Quantum interference of light: Anomalous phenomenon found

A counterintuitive facet of the physics of photon interference has been uncovered by three researchers of Université libre de Bruxelles, Belgium. In an article published this month in Nature Photonics, they have proposed ...

Quantum effects lead to more powerful battery charging

(Phys.org)—Physicists have theoretically shown that, when multiple nanoscale batteries are coupled together, they can be charged faster than if each battery was charged individually. The improvement arises from collective ...

Tracking flight trajectory of evaporating cough droplets

The ongoing COVID-19 pandemic has led many researchers to study airborne droplet transmission in different conditions and environments. The latest studies are starting to incorporate important aspects of fluid physics to ...

Are aliens watching old TV shows?

You've probably heard the trope about how aliens have been watching old episodes of "I Love Lucy" and might think these are our "historical documents". How far have our signals reached?

Earth's anthropogenic carbon dioxide increase is unprecedented

A new measurement technology developed at the University of Bern provides unique insights into the climate of the past. Previous CO2 concentrations in the atmosphere could be reconstructed more accurately than ever before, ...

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