A fascinating and widely used object during the 1860s was the **crystal barometer**, popularized by Admiral Robert FitzRoy, a famous British explorer and meteorologist. Although FitzRoy was not the inventor of this instrument, his contribution certainly increased its fame, making it a much appreciated accessory in homes and among sailors of the time. The principle behind this device is linked to the crystallization of the liquid inside the glass sphere, which is believed to accurately predict future weather conditions.

The **degree of crystallization** and the arrangement of the crystals in the liquid inside the sphere change depending on atmospheric variations, creating a sort of visible "forecast" of the time to come. When the temperature or atmospheric pressure changes, crystals form or dissolve, giving signals that a sunny, rainy or windy day is ahead. This instrument, also known as **storm glass**, was a true precursor of today's modern barometers, used to predict storms and other climatic variations.

**Length** 8.50 cm

**Width** 5.80 cm

**Height** 14.8 cm

**Length** 3.4 inches

**Width** 2.3 inches

**Height** 5.8 inches

**Weight** 0.23 kg

14-day returns

On items eligible for returns, you have 14 days from delivery to submit a return request. Learn more.

Ordering between the UK and the EU?

There are no hidden fees or additional charges once you’ve paid for your order. Enjoy hassle-free cross-border shopping. Learn more