Glass Tube Galileo Thermometer with Wooden Base - 20" Tall Scientific Weather Instrument for Home, Office & Classroom Decor | Unique Gift for Science Lovers & Teachers

How does it work? Inspired by the finding of Galileo Galilei, these high quality glass thermometers demonstrate how temperature affects density and buoyancy. Each glass orb is partially filled with liquid to achieve a precise weight. A metal counterweight for each temperature is hung from the bottom of the orbs. As the temperature changes, the density of the liquid inside each orb changes, causing it to rise or fall within the column. Each thermometer is individually calibrated to achieve an accuracy of 2°. Square Tube Galileo Thermometer With Wooden Base Available in 2 heights - 20 or 25 inches This is the ONLY Galileo Thermometer currently on the market that offers a SQUARE TUBE instead of a round one. Additionally, this unit displays temperatures in both Fahrenheit and Celsius. With an oversize natural wood base, this Galileo Thermometer stands above the rest! Available in 2 heights and temperature ranges: 20 Inches Tall With 9 Colorful Orbs (92F/32C - 60F/16C) 25 Inches Tall With 11 Colorful Orbs (96F/34C - 56F/14C) & Blue Cap (25" Model Requires Assembly) Available in 2 Sizes: 20 or 25 Inches Tall - 25" Tall Model Required Assembly ONLY Square Tub Galileo Thermometer on the Market Real Wood Base Provides Added Stability Tells Accurate Temperature In Fahrenheit & Celsius Works Indoors & Outdoors Hand Crafted Optical Quality Glass Includes Detailed Instructions & Product History Sheet 13" Tall Galileo Thermometer 17" Tall Galileo Thermometer 20" Tall Square Tube Galileo Thermometer With Wood Base 25" Tall Square Tube Galileo Thermometer With Wood Base 23" Tall Easy Read Galileo Thermometer 40" Tall Galileo Thermometer Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 321 4.3 out of 5 stars 160 4.0 out of 5 stars 10 5.0 out of 5 stars 3 5.0 out of 5 stars 4 — Price $32.49$32.49 $46.99$46.99 $89.99$89.99 $124.99$124.99 $89.99$89.99 $599.00$599.00 SIZE 13" Tall 17" Tall 20" Tall 25" Tall 23" Tall 40" Tall

The ONLY Galileo Thermometer on The Market With a Square Tube

Displays Temperature in Fahrenheit & Celcius

Real Wood Base With Natural Finish

Tells Accurate Temperature Within 2 Degrees

Includes Detailed Instructions & Product History Sheet

Newly Redesigned 25" Model Available Under Seperate Listing - Scroll Down to Comparison Chart in Product Description For Link to New Listing.