Don’t expect me to provide enlightenment. I’m lost.
So the garage door is unexceptional. Just a door to the garage Plywood, varnish. So tonight I’m loooking in the plate glass window to the back yard… In the reflection I see specular high lights of a yellow flash character along the hinge line of the back door. Lookig at it directly I see nothing other than the illumination of a 13 W CLF bulb in a lamp at about 45 degrees to the door.
So what causes the specular gold colored bright spots in the window reflection?
I have no clue and nothing I know of physics explains this.