Stormglass and Galilei

To date, however, no one has been able to provide a scientific explanation as to why the storm glass works. Admiral Fitzroy, director of the British Meteorological Institute, believed that it was static electricity from the fields that surround us. A revolutionary thought at the time!
You get the greatest use by placing the Stormglass in a cool place, e.g. in a north-facing window, or in a boat. ATTENTION! The instrument does NOT tolerate frost. As the name suggests, attention should be paid mainly to information about stormy weather a day or two ahead.
However, a storm glass cannot completely replace the barometer - it can supplement it. Always remember to listen to the weather forecast!
The storm glass is a highly valued utility item, and is often used as a gift idea.

1. Fern-like crystals form = cold and stormy
2. Fern-like crystals disappear = warmer and improvement in the weather
3. Star crystals fall down = frost, possibly with snow
4. Crystals everywhere in the liquid = prospect of rain
5. The liquid is completely clear = fine and dry weather

The fern crystals stand highest on the side from which the wind comes.

The weather glass is also a barometer, but instead of the crystals of the storm glass, you look at the liquid to see if it rises or falls. If the liquid in the large container falls, there is high pressure, and if the liquid rises, there is low pressure. When the amount of liquid changes, a change of weather is coming.

Galileo discovered that the volume of liquids changes with temperature. Known as the "Father of Advanced Science", the famous Italian scientist Galileo Galilei (1564-1642) made several discoveries in the 16th century. Among them was a method based on the laws of physics, where the density of the liquid expands or contracts due to temperature changes.
Exactly this fascinating principle is used in the Galileo thermometer, where several glass spheres, precisely calibrated, float in a liquid. The liquid in the balls can be clear or colored. Small metal plates are attached to these glass balls, on which different temperature degrees are stamped. The weight of each glass sphere varies minimally, and the spheres rise or fall due to the respective temperature change in the room. If the temperature rises, the balls fall; if the temperature drops, the balls rise. The lowest ball of the balls that floats highest in the thermometer shows the current temperature.

Instructions for Galilean glasses from Delite:

18°C or below = all 4 balls are gathered at the top
20°C 3 balls above, 1 ball below
22°C 2 balls above, 2 balls below
24°C 1 ball above, 3 balls below
Above 24°C = all 4 balls are gathered at the bottom.

Both types of instruments are available in brass or chrome-plated brass and in genuine Danish craftsmanship from Delite, and they are also available in charming colored versions fra SeaClub.