Mystery #1Tier 1light / colour
A red apple sits in plain white light, so where does the red come from?
A red apple is lit by ordinary white light, and white is not red. Yet the apple glows a deep, ripe red anyway. Nobody painted extra red onto it, and the light shining on it has no red label. So where is that red actually coming from?
Your guess
What's your hunch: how does a plain apple end up looking red under colourless white light?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.