28/08/2020

COVID, politics and voting by mail

The topic of mail-in voting has been top news lately, with Democrats touting its benefits early in the pandemic while some Republicans, President Trump in particular, insisted that the method is rife with fraud, a claim with ...

Scientists measure HONO and NOX flux in farmland

Researchers at the Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, developed an automated dynamic chamber system to simultaneously measure the HONO flux and NOX flux in farmland ecosystems. ...

Multidimensional, dual-channel vortex beam generator

Optical vortices, characterized by a helical phase front and doughnut-shaped intensity distribution, contribute to a broad range of applications, from microscopy to optical communications. And applications for optical vortices ...

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