fitzroy storm glasses is a type of weather forecasting device, composed of a sealed glass container filled with liquid. The appearance of the liquid purportedly predicts the weather, but most modern experiments have failed to confirm this.
Guidelines: If there are large flakes throughout the liquid, it will be overcast in temperate seasons or snowy in the winter. If there are threads near the top, it will be warming or windy. If the liquid contains small stars on sunny winter days, then snow is coming. If there are crystals at the bottom, this indicates frost. A cloudy glass with small stars indicates thunderstorms. If the liquid in the glass is clear, the weather will be bright and clear. The Storm Glass is standing on a Mahogany wood base and is 9 inch tall.
One type of barometer used by Fitzroy was a storm glass. Observing the liquid in the storm glass was supposed to indicate changes in the weather. If the liquid in the glass was clear, the weather would be bright and clear. If the liquid was cloudy, the weather would be cloudy as well, perhaps with precipitation.
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