Goethe Barometer hand-blown for hanging with dark wood and drip tray in clear glass Size approx. 14 x 34 cm Please only use distilled or boiled water with this exceptional object to avoid limescale deposits and thus preserve the beauty of this item. You can color the water to your desired shade using food coloring
Size details: 14cm x 34cm
Color: natural wood with clear glass
Condition: New
» Since our glass products are hand-blown unique pieces, minimal shape and color deviations may be possible. Which is a sign that every product is made by hand!
Tags: Goethe barometer, weather station, pee barometer, wall barometer, weather meter, air pressure meter, invention, old, antique, collector's item, invention, teaching material, decoration, home accessories, gift for friends, wedding
clear barometer
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About the Goethe Barometer:
The Wetterglas or Goethe Barometer is probably the oldest barometer in the world. It is said that the Moors, who were very capable scientists, carried such barometers with them when they arrived in Spain around 700. Weather glasses have been made in the Netherlands since the beginning of the 17th century by a Mr. G. de Donckere, after whom they were called thunder bottles. They were used in seafaring for the early detection of weather changes. It is probably called the Goethe Barometer because one was found in Goethe's estate.
Principle:
The principle of the Goethe barometer is simple. Compare the air pressure acting on the thin opening of the beak with the air pressure inside the closed bottle. If the external air pressure falls when a low pressure area (usually associated with bad weather) comes, the internal pressure outweighs the external pressure and the liquid rises in the thin beak. If, on the other hand, the external air pressure increases when a high-pressure area that promises good weather approaches, the water in the beak decreases accordingly.