Foto Credits:
Portal of the Conrad Observatory: Lammerhuber
Instruments: Leonhardt
Harddisk: Photo by benjamin lehman on Unsplash
Maps:
Austrian Earthquake Map: Horn
Images:
sun spectral image: SOHO (NASA/ESA)
Diagrams:
Live: Leonhardt (using http://smoothiecharts.org/)
The page was designed by R. Leonhardt