H.M.S. Beagle Admiral's Storm Glass - Mysterious Weather Forecasting Instrument

This is used to help predict the weather with the old school H.M.S. Beagle Admiral's Storm Glass. Used to predict the weather since 1750, the storm glass was a unique and mysterious instrument. This is a handmade desktop reproduction of the ship-mounted one used by Admiral FitzRoy of the H.M.S. Beagle, the ship that famously took Charles Darwin on its second voyage to the Galapagos Islands and around the world, leading to the development of his scientific theory of evolution. Inside the hermetically sealed borosilicate glass orb is a mixture of distilled water, potassium nitrate, ammonium chloride, ethanol, and camphor that seem to react to atmospheric change. Cloudy equals precipitation, visible crystals equals fog / high humidity, cloudy with small stars equals thunderstorms, and clear equals calm weather ahead. Each storm glass orb is secured on a wood pedestal and is secured down with brass fittings. Smoke free home and quick and well packaged shipping. VGUC No call outs