COVID-19 virus survives on surfaces within thin film

How does the COVID-19 virus manage to survive on surfaces? To find out, researchers in India are exploring the drying times of thin liquid films that persist on surfaces after most respiratory droplets evaporate.

Giant aquatic bacterium is a master of adaptation

The largest freshwater bacterium, Achromatium oxaliferum, is highly flexible in its requirements, as researchers led by the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) have now discovered: It lives ...

Ironing out technetium contamination

Millions of medical imaging procedures each year rely on radioactive technetium. One of its radioisotopes decays quickly and is useful as a tracer material in nuclear medicine. But another, technetium-99, is very long-lived, ...

Semi-random scattering of light

What is the exact path of light inside a highly scattering material like white paint? This is a question that is impossible to answer, as the particles inside the paint are distributed randomly. This, at the same time, is ...

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