A nice try, Leonard. I can just tell you that it took me a fraction of a second to identify the thing. Once I was blackening the inside of a camera. As the paint was drying it caught a fiber that stayed there. It took several rolls of film to shoot only to see on all of them this fiber - in several positions, sharp, less sharp etc. etc. It was exactly as you have it on the picture. There is ana infinity of fibers that can have all the thickness you think only a human hair can have...