© Gunnar Ekelund (Spårvägsmuseet)

AgNO3, which is the scientific designation for silver nitrate, served as a chemical base for the photography all the way up to the digital era. The exhibition consisted of 30 stories made out of different scientific issues. We met assassins and cloud photographers, became acquainted with serious researchers in white coats as well as happy enthusiasts. Sometimes the scientifically interesting could have arisen, only in our time. Never before, has a similar exhibition, as inviting to new insights as to laughter, been presented in Sweden.