I find myself in acute intellectual misery as I attempt to determine why most of the flashing yellow left turn lights ... Now we get to sit through an endless light cycle, pondering life’s ...

They grow together, so they look like one individual. This species is yellow because of a pigment called parietin, which protects the lichen from harmful UV light rays. Specimens growing in the shade ...

You can use a prism to split (or disperse) white light into a spectrum of colours: red, orange, yellow, green, blue, indigo and violet. Dispersed means that the colours are separated out.

In art lessons, you might have learned about the three primary colours of paint which are different to the primary colours of light. In art they are: red, yellow and blue. Mixing the primary ...