Smithsonian Magazine on MSN3d
See for Yourself One of the World’s Rarest Red Diamonds at the Smithsonian’s Natural History Museum
Laid out like an orchestra in a quiet gallery room, 40 colorful gems have one of the planet’s most distinguished conductors: a red diamond, 2.33 of the rarest carats in the world, shining like a ...
BBC5mon
Four rare smells from around the world - and beyond
From cosmic aromas to fruity flowers, join BBC Bitesize as we take a look at four of the rarest smells from across the world. In 1991, Helen Sharman, a chemist from Sheffield, became the first ...