Highly selective membranes: Researchers discover how water can affect its own filtration

Membranes with microscopic pores are useful for water filtration. The effect of pore size on water filtration is well-understood, as is the role of ions, charged atoms that interact with the membrane. For the first time, researchers have successfully described the impact water molecules have on other water molecules and on ions as part of the filtration mechanism. The researchers detail a feedback system between water molecules that opens up new design possibilities for highly selective membranes. Applications could include virus filters.

source https://phys.org/news/2020-10-highly-membranes-affect-filtration.html

London Heathrow unveils rapid pre-flight virus tests

London's Heathrow airport on Tuesday began to roll out paid-for rapid coronavirus testing, with results in one hour, as it seeks to boost demand decimated by the deadly pandemic.

source https://techxplore.com/news/2020-10-london-heathrow-unveils-rapid-pre-flight.html

NATO to set up new space center amid China, Russia concerns

To a few of the locals, the top-secret, fenced-off installation on the hill is known as "the radar station." Some folks claim to have seen mysterious Russians in the area. Over the years, rumors have swirled that it might be a base for U.S. nuclear warheads.

source https://phys.org/news/2020-10-nato-space-center-china-russia.html