Beach umbrellas do not block out all solar radiation
Tuesday, July 20, 2010 - 08:28
in Physics & Chemistry
A team of researchers from the University of Valencia (UV) has proven that 34% of ultraviolet radiation filters through under beach umbrellas. According to what is published in the journal Photochemistry and Photobiology, umbrellas intercept the full direct flow that comes from the Sun, but not the diffused radiation that penetrates through from the sides.