Rare Item: Galileo Thermometer, Light Bulb Shaped Glass Object, Colorful Boat

A lightbulb-shaped glass thermometer featuring colorful floating boats.

- Design: Lightbulb-shaped glass thermometer
- Internal Structure: Design with colorful floating boats
- Materials: Glass with a metal stand
- Size: Approximately 13cm in height
- Use: Interior decoration

A Galileo thermometer (officially a Galileo thermometer) is a bit different from a regular thermometer; it's the observational type.

Simple to Use:

1. Place on a flat surface.
    A location with minimal vibration is best (e.g., a shelf or desk).
2. Leave it for a while.
    Wait about 10-20 minutes for it to adjust to room temperature.
3. Observe the floating balls.
    * Balls floating at the top → Temperature is on the cooler side.
    * Balls sunk to the bottom → Temperature is on the warmer side.
4. Check the tag on the ball that stops in the middle.
    Each ball has a temperature written on it, like 20℃ or 24℃.
    The temperature of the ball floating at the very bottom indicates the current room temperature.

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A Few Tips:

* Avoid direct sunlight or drafts from air conditioners, as they can affect accuracy.
* After moving it, don't read it immediately; wait until it settles.
* As it's primarily for decoration, it's not suited for precise temperature readings (within ±1℃).

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How it Works (Simplified):

This utilizes Archimedes' principle. The density of the liquid changes with temperature, causing the balls to float or sink.

Main Materials: Glass, Crystal