Fitzroy Globe Storm Barometer - Desk Decoration Gadget - BAW11003


The Fitzroy chemical barometer in the form of a globe is an elegant gadget that works perfectly as a decorative element inspired by classic meteorological instruments. Thanks to its striking appearance, it looks excellent on a desk, shelf, or chest of drawers. It is a great gift idea for people who value science, geography, and distinctive interior accessories.

An unusual combination of 19th-century science and modern design. The Fitzroy chemical barometer in a unique globe shape is a fascinating instrument that reacts to weather changes, creating spectacular crystals inside the glass sphere.


CHEMICAL BAROMETER - STORM DROP - WEATHER STATION

The Fitzroy barometer is an elegant and impressive gadget that allows you to observe weather changes in a simple way. It works through chemical reactions in a special solution – when air pressure rises, the liquid rises, and when it falls, it drops. This allows the barometer to “predict” the weather: it indicates whether sunny days, rain, or a storm are approaching. It is a fascinating combination of science and design – ideal for those who like practical yet striking accessories.



CHANGES SHAPE DEPENDING ON THE WEATHER

Inside there is a mixture of distilled water, ethanol, potassium nitrate, ammonium chloride, and camphor. Camphor is the key! Depending on atmospheric conditions – mainly changes in pressure, temperature, and humidity – unique crystals form, dissolve, or change shape in the solution.

·The liquid is crystal clear: The weather will probably be sunny and dry.
·Small, cloudy stars or flakes appear in the solution: This means cloud cover, fog, or rain is approaching.
·Large, feathery crystals: They signal an approaching storm or heavy rainfall.
·Crystals form threads or strands at the top of the liquid: They indicate windy weather.

PRODUCT INFORMATION:

·Material: Glass, wood
·Height: 18.5 cm
·Width: 13 cm
·Depth: 9 cm
·Sphere Diameter: 9 cm
·Liquid composition: Water, ethanol, natural camphor, and other ingredients (e.g. ammonium chloride, potassium nitrate)
·Operating principle: Change in the appearance of crystals depending on ambient temperature and atmospheric pressure.

It is ideal as:

·a decoration for an office, study, or living room
·a gift for a science and meteorology enthusiast
·a gift for someone interested in geography and travel
·an interesting accessory for a desk or bookcase
·an original gadget for modern interiors



NOT ONLY AN INDICATOR, BUT ALSO A DECORATION

The Fitzroy barometer is an ideal item for everyone. It is a unique, mesmerizing gadget that combines historical curiosity with a decorative element. It is an impressive ornament and an intriguing conversation piece in any living room, study, or office.



HOW THE FITZROY BAROMETER WORKS:

The Fitzroy barometer, also known as a Storm Glass or Storm Crystal, is a historic meteorological instrument popularized by Vice-Admiral Robert FitzRoy, captain of HMS Beagle (the ship on which Charles Darwin made his famous voyage). FitzRoy used and improved this instrument for predicting weather at sea, publishing detailed instructions for its use.

The key ingredient of the barometer is camphor, an organic terpene compound, together with accompanying salts: potassium nitrate and ammonium chloride, dissolved in a mixture of ethanol and distilled water. The solution is hermetically sealed, but it does not work like a typical barometer measuring atmospheric pressure.
Physicochemical Phenomenon of Crystallization

The operation of the barometer is based on the phenomenon of crystallization and dissolution of camphor in the liquid. This is a process strongly dependent on subtle thermodynamic changes in the environment, which often precede an actual change in the weather.

1.Temperature and pressure: Changes in temperature and atmospheric pressure affect the solubility of camphor in the solution.
2.Condensation: It is believed that moisture condensation on the surface of the crystals inside the vessel also has an effect, which is more pronounced when external humidity increases.
3.Crystal formation: A decrease in temperature (often associated with the arrival of a cold front or storm) and changes in pressure lead to faster precipitation and growth of camphor crystals in the solution.


USED IN THE 1750S

Such unusual barometers were already in use in the 1750s. Charles Darwin used the Storm Barometer to predict the weather on his ship, including during the famous scientific expedition to the Galapagos Islands.