It's easy to take something as wonderful as colour for granted, especially when you've been able to see it every day all your life. Could you imagine never being able to see the beautiful hues of a sunset or not being able to...
Yesterday a picture of a dress caught fire on the internet. Is the dress black and blue? Is it white and gold? Nobody can seem to agree, but it turns out there's an explanation for why we all can't just get along.