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Readers Respond to the December 2019 Issue

Scientific American April 2020 Letters to the editor from the December 2019 issue of Scientific American BLACK HOLE BREAKOUT In “Escape from a Black Hole,” Steven B. Giddings gives us a fascinating update on developments in the black hole information crisis, the seeming paradox of quantum rules and general relativity indicating that black holes destroy […]

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Medical Students Can Give Vital Help in the COVID-19 Crisis

The COVID-19 pandemic is putting an enormous strain on the health care system. This is due in part to the explosion in the number of cases and in part because health care professionals are themselves getting sick—in some cases fatally succumbing to the virus. While medical students aren’t full-fledged physicians, we have a significant amount […]

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Scientists Fear Second Coronavirus Wave as China’s Lockdowns Ease

For the first time in months, the Chinese province of Hubei, where the coronavirus first emerged, is getting attention for a good reason. COVID-19 cases there have dropped to practically zero, and last week authorities lifted travel restrictions in and out of the province, some 60 days after much of it was dramatically locked down. […]

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Coronavirus Lockdowns Have Changed the Way Earth Moves

The coronavirus pandemic has brought chaos to lives and economies around the world. But efforts to curb the spread of the virus might mean that the planet itself is moving a little less. Researchers who study Earth’s movement are reporting a drop in seismic noise—the hum of vibrations in the planet’s crust—that could be the […]