Constraining the dynamics of rotating black holes via the gauge symmetry principle

Constraining the dynamics of rotating black holes via the gauge symmetry principle

Credit: CC0 Public Domain In 2015, the LIGO/Virgo experiment, a large-scale research effort based at two observatories in the United States, led to the first direct observation of gravitational waves. This important milestone has since prompted physicists worldwide to devise new theoretical descriptions for the dynamics of blackholes, building on the data collected by the … Read more

Yes, the Climate Crisis Is Now ‘Gobsmacking.’ But So Is Progress

Yes, the Climate Crisis Is Now ‘Gobsmacking.’ But So Is Progress

Scientists are running low on words to adequately describe the world’s climate chaos. The National Oceanic and Atmospheric Administration could already say earlier this month that there was more than a 99 percent chance that 2023 was the hottest year on record. That followed September’s sky-high temperatures—an average of 0.5 degrees Celsius above the previous … Read more

How the retailing contest between CBDs, shopping centers and online will reshape our cities

How the retailing contest between CBDs, shopping centers and online will reshape our cities

Credit: CC0 Public Domain Retail activity has been a defining facet of cities since antiquity. The Greek Agora and Roman Forum may be viewed as the original CBDs—central business districts, or what urban planners call activity centers. Retail spaces have evolved over time. Urbanization, mass production and the rise of conspicuous consumption led to the … Read more