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.
A vast range of crystal forms from Frederich Mohs' 1825 Treatise on Mineralogy, gorgeously arranged into a cloud of refracted colour. Mohs is of course mainly remembered for his Hardness Scale, used to this day. 100% cotton.Black t-shirt printed in full colour. Care: Machine wash...
We wouldn't normally want to label people, but this t-shirt features a pretty accurate summary of the ingredients of a human being. Wear your gold content with pride. And your magnesium, and molybdenum, manganese and mercury content too. Also available in a women's fit and...
A funny and fascinating guide to the chemical elements, full of fabulous facts and explosive experiments. Scientific sleuth Sherlock Ohms investigates the mystery of how absolutely everything came to exist, and where you can find many of the elements hiding in your own house. With...
Celebrate women working and achieving in STEM with this brilliant pin. Part of our Badges of Honour range. Enameled blue metal badge. Measures approx 3 cm long.