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Why is the Sky Blue? Or Better Yet, Why is the Ocean Blue?

31 Jan 2020

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 all have Blue Blood

15 Feb 2018

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...

The Mystery of Maya Blue Finally Solved

20 Mar 2017

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...

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