Storm Glass is a crystal drop shaped barometer for weather forecasting and much cooler than your local weatherman. it changes from clear to cloudy to crystal flakes, predicts if the weather will be clear, cloudy or rainy. For example, if the crystal is clear, it means a bright and shiny day. A cloudy glass with small stars means a thunderstorm. Large flakes in the solution indicates snowy weather.
The way storm glass works is a mystery . it was used in (1831-1836) by a famed meteorologist named “Admiral Fitzroy” in a historical voyage with Charles Darwin. Storm glass works on the premise that temperature and pressure affect solubility, sometimes resulting in clear liquid; other times causing precipitants to form. However, the method by which this works is not fully understood .