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Personalized Fishing 3D Fish Hook American Flag Sweatshirt
Ever fancied having a superpower? Something you can call upon when you need it, to hand you extra information about the world? OK, it’s not X-ray vision, but your eyes do have abilities that you might not be aware of.
We are all familiar with colour and brightness, but there is a third property of light – the “polarisation” that tells us the orientation in which light waves are oscillating. Animals, like bees and ants, use the polarisation patterns in the sky as a navigation aid. But few people, even in the scientific community, are aware that humans can perceive the polarisation of light with the naked eye.
In research we’ve just published in Proceedings of the Royal Society B, we used an experiment that was originally designed to test the visual abilities of octopuses and cuttlefish to investigate our human ability to perceive this polarised light.
We Already use Polarised Light