Dying Stars and Red Barns

Here's a little trivia for your Monday.
Ever wonder why barns are painted red?
Sure -- it's because red paint is the cheapest color of paint.
But why is red the cheapest paint?
The answer may surprise you!

http://www.smithsonianmag.com/smart-news/barns-are-painted-red-because-of-the-physics-of-dying-stars-58185724/?utm_source=keywee-facebook.com&utm_medium=socialmedia&utm_campaign=keywee&kwp_0=278774&kwp_4=1082037&kwp_1=503350

John <><