Admiral Robert Fitzroy, most famous as Captain of The Beagle, essentially invented weather forecasting for the safety of sailors, spending his entire fortune to do so. One of his many inventions was the Storm Glass, a cylinder filled with a mixture of water, ethanol, potassium nitrate, ammonium chloride, and camphor. Fitzroy believed that the formation and dissolution of crystals and particles in the mixture reflected temperature and pressure in a way that predicted the weather; his instructions are included.
Measures 14cm high, wooden base 6cm wide
PLEASE NOTE: you should allow the glass to 'settle' for a week or more after delivery.
Spice up your dinner parties with amazing tricks and challenges using wine glasses, candles, knives and other readily available objects. Each one of this set of 21 cards provides an illustration and step-by-step instructions along with an explanation of the science behind the trick. From sabring...
Have your own gravity-defying adventure with this intergalactic puzzle, featuring the work of mixed-media artist Ben Giles. 1000 piece puzzle in sturdy box.Contains 20 shaped puzzle pieces.Box size: 29 x 21.5 x 5 cm.Puzzle size: 69 x 51 cm.
Build your own bumblebee...(or ladybird, or spider, or beetle) with this gorgeous set of wood-backed rubber stamps. Depict your favourite creepy crawlies, or invent a brand new species - the possibilities are endless. Twenty-five wooden-handled stamps, with two inkpad colours.Box measures 27.7 x 9.8 x...
A classic 'top trumps'-style card game - of the world's deadliest diseases. Play one disease against another and try to trump your opponents card in terms of fatality rate, incubation period and so on. 30 cards plus instructions in a neat box.