Did you know that uranine starts fluorescing again when the ice cubes melt?
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…
Tag: dye
Did you know uranine doesn’t fluoresce when frozen?
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…
Update on freezing ice cubes and the temperature distribution in our freezer
After writing the blog post on sea ice formation, brine release and what ice cubes can tell you about your freezer earlier today, I prepared some more ice cubes (because you…
Sea ice formation, brine release, or: What ice cubes can tell you about your freezer
Many of my kitchen oceanography experiments use dyed ice cubes, usually because it makes it easier to track the melt water (for example when looking at how quickly ice cubes…
Balances of dyed and un-dyed waters
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…
It’s all about the right equipment: That’s why I now own a UV lamp! I see a lot of fluorescent tracer spotting in my future!
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…
The icy elevator
Weird things happening when ice cubes melt. Remember I said that there were weird and wonderful things going on when I last ran the melting ice cubes in salt and…