Galileo Thermometer D3893 T2PK and it became the backbone

and it became the backbone of American postwar civil aviation

and trying again

containing hopeful thoughts about the future of space travel

by acclaimed author and artist Lauren Redniss

Galileo Thermometer D3893 T2PK and it became the backboneThe Galileo Thermometer is an elegant temperature reading device that every science lover needs. It is a sealed glass cylinder that contains clear liquid and glass bulbs that are all different density. As the temperature changes, the balls rise and fall, giving you a temperature reading. Hand blown glass thermometer measures 11" tall with 6 glass balls (temperature range 64F to 84F) with gold plated tags. Recommended for ages 8 and up.