Partial solar eclipse seen from Berlin

Partial solar eclipse seen from Berlin. It was not particularly clear, but it was just possible. It was a good thing that I still had a piece of old solar eclipse foil that I could stretch in front of the lens.

Radon xkcd.com/3037

Mapping the exposure to outdoor radon in the German population Data on outdoor radon are generally scarce compared to indoor radon. However, knowledge of the spatial distribution of outdoor radon is necessary to e…

The Day starts well: A new paper is published and online.
#radon #strahlenschutz

www.sciencedirect.com/science/arti...

Sky Alarm xkcd.com/2979