What's new

colours posts

Microscope: Ghostly afterimages News

by Fiona Midson, 26 October 2022 | 0 comments

Line drawing of a bird next to the same bird coloured red.

When we look at a very bright object and then look away from it, why do we still see the object’s outline?

Continue reading Microscope: Ghostly afterimages

Coloured cups brainteaser Brainteaser

by David Shaw, 20 October 2021 | 2 comments

Brain icon

Difficulty: Tricky Scarlett, Azure and Jett were drinking tea together. There was one scarlet red teacup, one azure blue mug and a jet-black tea glass. None of them had a cup that was the same colour as their own name. After a while, Scarlett offered to get the person with the black glass another drink….

Continue reading Coloured cups brainteaser

Categories: