The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller...
Snails, spiders and octopi have something in common- they all have blue blood! We're not talking in the sense of royalty, these creatures literally have blue blood. So why is their blood blue and...
Maya Blue, a vibrant light blue colour, characterizes the civilisation that flourished across Mesoamerica between the 3rd and 10th century. The pigment was used to decorate pottery, murals and...