I think I will start a new topic to discuss sun exposure on the back/front at near sunset versus exposure on top of head at noon, since it definitely is a different topic. Thanks.
Yes DaveC426913, you are correct. As we were discussing about sunburn on the back/front of a standing person, we got into the disagreement about what I initially posted the question about, which was so black-and-white that I had to try to confirm one way or another. He now accepts that...
Hello again. Thanks again for all of the information.
What started my conversation with my friend was that I thought that the sun was strongest on my front/back (when standing) at about 6pm versus 1pm. He thought that due to the increased thickness of the atmosphere as the sun gets lower in...
Thanks so much for the replies. His view is that there is no definite line on a sun burn because the skin that was closer to parallel was actually moving in and out of the sun as the sun moved or the person moved, so the amount of sun burn is based totally on the time of the exposure, versus...
Does skin that is perpendicular to the sun’s rays burns faster than skin that is closer to parallel to the sun’s rays? I was certain that it does but a very smart friend/engineer is certain that it doesn’t and was incredulous that I thought it did.
I really would like to know the physics...