Further to the recent comments on light, and whether light reflected from a mirror can illuminate things, here are a couple of photos of a f...

If you think 50 degrees C is hot check out Venus, THE hot-spot at 471 degrees C, followed by Mercury at 430 degrees! Average Temperatu...

Light is a problem for collectors of anything that come in colour boxes. Our collections of toys do and are vulnerable to fading as are boo...