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- Educational and fun thermometer invented 400 years ago by Galileo Galilei
- This outdoor thermometer’s multi-colored fluid-filled glass globes Rise and fall as the temperature changes
- Metal cage with a large hook for hanging
- 22.5 inch length
- Not recommend for temperatures below freezing. Assemble thermometer outdoors. Liquid is paraffin oil. Do not get on skin if glass is broken
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The clear glass cylinder contains multi-colored spheres with numerical tags suspended in a special, clear liquid. Galileo discovered that spheres of different weights rise or fall according to the temperature as the liquid in the cylinder contracts (cools) & expands (warms). the lowest floating sphere in the upper part of the cylinder tells the current temperature. This outdoor version come with a metal cage, a large hook for hanging, & registers temperatures from 60 to 96 Degree Fahrenheit. . Size 22.5″H; tube 2″ dia
