Even though one of Dan Flavin’s light sculptures is clearly in view to those outside on Pennsylvania Avenue, the National Gallery will scold you if you attempt to take photos of Flavin’s light from inside … even if it is with a crappy 1.5 megapixel cameraphone. That’s what a DCist reader informed us over the weekend, sending the clandestine photo to us.

It is art, but it’s not the Sistine Chapel either, with camera flash sensitivities. But perhaps we missed this lesson in science class. Can camera flashes damage other light sources?