Yes, I had to test that! :-D Why do I find this exciting? Because that means that a phase change of the water switches fluorescence as a tracer of that…
Something else I found out when checking on my ice cubes yesterday: I had frozen a second tray* with ice cubes dyed with uranine (you know, the green stuff I…
Oh look, a plume of (almost) un-dyed water hitting the green lake! I am really fascinated by the balance between green water leaking out of the pipeline and into the…
Before I start gushing about my awesome new UV lamp (thanks for encouraging that purchase, Uta! :-)), some other updates on the state of green in the park across the…
Luckily some of my friends are crazy enough to bring the UV lamps and go on a night walk with me, following the green fluorescent stream! (Don’t know what I…
This morning, the green lake looked different yet again. If you remember yesterday’s pictures, we ended the evening with the lake being a fairly well mixed green color (picture on…
You know I love dye tracers (remember the beautiful fluorescent green we used in the 2017 experiments in Grenoble, when we got to play with the 13m diameter rotating tank?)…