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Microscope: Ghostly afterimages News

by Fiona, 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?

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Coloured cups brainteaser Brainteaser

by David, 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….

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