Galileo Thermometer - Tear Drop - 23cm - Wm. Widdop

It works based on Archimedes' principle and the concept of density. The colored liquid-filled glass spheres have slightly different densities. As the ambient temperature changes, the density of the liquid inside the main glass tube also changes. When the ambient temperature rises, the liquid becomes less dense, causing the denser spheres to sink. Conversely, when the temperature drops, the liquid becomes denser, causing the less dense spheres to float. The lowest floating sphere indicates the current temperature.

Galileo thermometers are primarily decorative and provide a visual indication of temperature rather than precise measurements. While they offer a general idea of temperature changes, they are not as accurate as digital or mercury thermometers and can be influenced by factors like placement and handling.

The dimensions are approximately 195mm in height and 80mm in width and depth.

The liquid inside is typically a mixture of water and alcohol with dyes. While not highly toxic, it should not be ingested. If spilled, clean the area with a damp cloth and ensure small children or pets do not come into contact with the liquid.

Use a soft, dry or slightly damp cloth to gently wipe the exterior. Avoid using any harsh chemicals, solvents, or abrasive materials that could scratch or damage the glass.

The main glass tube contains a mixture that acts as a storm glass. Changes in temperature and atmospheric pressure can cause this mixture to form crystals, providing an additional visual element and a historical nod to weather prediction tools.

No, this thermometer is designed for indoor use only. Outdoor conditions can be too extreme and variable, potentially damaging the thermometer or rendering its readings inaccurate.

Ensure the thermometer has been in its intended location for at least an hour to acclimate to the ambient temperature. Check that it is on a level surface and not subject to rapid temperature changes.

This can occasionally happen due to changes in temperature or handling. Allow the thermometer to stabilize in a consistent temperature environment for several hours. If the issue persists, it may indicate internal condensation, and gentle handling is advised.

Inspect the glass carefully for any cracks. If a leak is detected, discontinue use immediately to avoid damage to surfaces and handle the item with extreme caution due to broken glass. Contact the place of purchase for a replacement.