Blue seems to be all around us, we see it in the sky and we see it in the ocean - but the word blue was missing from our lexicon until relatively recently. Ancient Greek texts like the Odyssey the fail to mention blue at all.
Professor of Psychology at Goldsmiths University of London Jules Davidoff has been researching object recognition, colour, naming, and cognitive neuropsychology for many decades. He joins The Weekend to discuss.
Here is ASAPScience's recent video entitled 'Why The Ancient Greeks Couldn't See Blue'.