Evidence of Iron Bacteria in October 2016—2
November 12, 2016
Sometimes a shadow reveals a less-visible Leptothrix discophora film. Someone explained to me why this happens, but I’m afraid I didn’t quite get it. Perhaps one of you knows and can explain it again?
🙂 I fear that even the explanation would be hard for me to follow! But I wonder if it has anything to do with the quality of light in shadow being more blue, and light in sunlight being more yellow.
November 13, 2016 at 12:39 PM
Hm. Don’t know, but I don’t think so. Wonder where I put that other explanation . . .
November 13, 2016 at 12:51 PM
The colour is there but it takes a shadow to reveal it.
November 16, 2016 at 3:18 AM
Right, Andy. Why is that?
November 16, 2016 at 7:10 AM
I have no idea unfortunately unless it could be something to do with whether light is polarized or not
November 16, 2016 at 5:20 PM