Galileo thermometer - Wikipedia

File:Gtherm, galileo thermometer image.jpg - Wikimedia Commons

This glass thing with lava lamp-like liquid inside the smaller balls. (more pics in comments) : r/whatisthisthing

Thermoscope - Wikipedia

File:Galileo thermometer.jpg - Wikimedia Commons

Types of thermometer - post 1 - Saba Dejlah

Thermometer - Wikipedia

Colored Glass Spheres; Galileo Themometer, From wikipedia: …

Motivated Parent - Successful Child: The Galileo Thermometer – Gift Better Than Computer Game or Electronic Gadgets

Top 9 Galileo Thermometers

Galileo Galilei - Wikipedia

Thermometer - Wikiwand

Thermometer - Wikipedia