so he could measure the heat...
telescope
galieo
thermometer
he didn't invent it!
The Galileo thermometer was not actually invented by Galileo Galilei. It was invented by a group of scientists and glassworkers inspired by Galileo's ideas about the principle of buoyancy.
santoria santoria
Yes, he did.
== ==
Dr. Spock
He did not actually invent the thermometer, which would have shown a scale of temperatures. He invented the "thermoscope" -- a device that showed increase or decrease of temperature using the expansion of a liquid in a tube.
Gabriel Fahrenheit did invent the mercury thermometer but it was in 1714. In 1709, he invented the alcohol thermometer. He also developed the Fahrenheit temperature scale which was introduced in 1724.
•Galileo Galilei was the first person to invent the thermometer