Well here a photo of Stee-wool Photography immortalized using the camera #canon EOS 750D, f / 8, 10 seconds, ISO-200. what is Steel-wool Photography, Steel-wool is a kind of iron fiber that is often used for carpentry purposes, now to photograph Steel-wool Photography is very easy. Because basically the same as painting the light in the photo or often called Light Painting Photography. Steel-wool is used as a medium for painting light in photos. But when shooting like this try the location that you use safe and away from materials that are flammable yes ....
Hah hope your photographer was wearing protection.. great photo
thanks for the good response