[ad_1] Mechanical engineer Michael Gollner and his graduate student, Sriram Bharath Hariharan, of the University of California, Berkeley, recently visited NASA’s John H. Glenn Research Center in Cleveland, Ohio. There, they dropped burning objects into a deep pit and studied how fire vortices form in microgravity conditions. The Glenn Center …
Read More »In a pandemic, migration from densely populated cities is more effective than closing borders
[ad_1] IMAGE: The evolution of infection in people as a function of the asymmetry in population distribution shows that when the boundary from high-density to low-density areas is closed, the total spread of the disease … More Credit: Image courtesy of Massimiliano Zanin WASHINGTON, November 17, 2020 – Pandemics are …
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