This glass cloud contains special liquid that crystalizes different patterns as the air pressure changes.
Nobody knows who invented the "storm glass"—ancestor of this charming cloud—but it was popularized by pioneering meteorologist Robert Fitzroy, captain of HMS Beagle. (He coined the word "forecast.") This playful interpretation works the same way they did back then. The special liquid inside the glass crystallizes in different patterns as the barometric pressure changes. Fitzroy used his while carrying Charles Darwin on his famous, five-year voyage.
Size: 12.5 x 2.9 x 10.5cm