JakeDontDraw on MSNOpinion

From stone to color: Making genuine ultramarine blue paint using rare lapis lazuli

For centuries, artists relied on lapis lazuli to produce ultramarine blue, a pigment prized for its intense color and rarity.

This ‘blue marble’ fruit isn’t blue at all and its optical trick is stunning

An African fruit shines brighter than butterflies, without using pigment. Scientists reveal how microscopic structures create a blue glow so intense it lasts decades, and why evolution chose this ...