It’s all to do with the raindrops, says one reader, with them needing to be relatively uniform in size and well separated for ...

From Namibia’s red dunes to South Africa’s violet jacarandas, Africa offers travellers the chance to journey through the full ...

Researchers have discovered a novel color-generation mechanism in nature, which if harnessed, has the potential to create cosmetics and paints with purer and more vivid hues, screen displays that ...