What is the term for the depiction in art of the sun's rays shining through or behind clouds? This phenomenon. Sometimes believed to be a form of theophany. Wikipedia has an article about it, but I can't remember the name to look it up. Thank you.
posted by Kraftmatic Adjustable Cheese on Jul 30, 2009 - 14 answers

How much UV damage am I getting sitting in a classroom for 5 hours with a big window. [more inside]
posted by andoatnp on Jun 26, 2008 - 5 answers

What happens at either extreme of the electromagnetic spectrum? [more inside]
posted by euphorb on Oct 19, 2007 - 17 answers

ScientificIlliterateFilter: If the sun's gravity is so strong as to keep whole planets circling it in orbit (even ones million of miles away), how come light and heat (incredibly fragile things compared to planets) can escape as rays (or whatever they are)?
posted by amberglow on Nov 14, 2004 - 53 answers