The origins of the black hole information paradox

While physics tells us that information can neither be created nor destroyed (if information could be created or destroyed, then the entire raison d'etre of physics, that is to predict future events or identify the causes ...

What's a Luddite? An expert on technology and society explains

The term "Luddite" emerged in early 1800s England. At the time there was a thriving textile industry that depended on manual knitting frames and a skilled workforce to create cloth and garments out of cotton and wool. But ...

From glacier ice, a wealth of scientific data

Perched next to a river near a glacier's edge in Greenland, Penn biogeochemist Jon Hawkings and Jack Murphy, senior research coordinator in Hawkings' lab, scooped up samples of frigid meltwater, careful to seal the bottles ...

Synthetic black holes radiate like real ones

Research led by the University of Amsterdam has demonstrated that elusive radiation coming from black holes can be studied by mimicking it in the lab.

The science of why hawks are one of nature's deadliest hunters

The sight of hundreds of thousands of bats streaming from their roost at dusk is one of nature's great spectacles. Swarms can be so dense they resemble rising smoke at a distance. But the aerial antics of the birds of prey ...

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