Forget the black and blue dress – this photo of an unassuming building is the latest image to demonstrate just how sophisticated our brains are at viewing the colours we see around us. The strange ...

Women tend to see more shades and variations of colour. Our eyes have special cells called cones that help us see colours. There are three types of cones, each sensitive to red, green, or blue light.

You can project all sorts of colors from a video projector, but can you project the color black? Wouldn't that be like shooting a shadow out of a flashlight? I mean ...