Make Thermometer with a Bottle

Making a thermometer with a bottle or a jar. The fluid that expands when the temperature rises is the air in the bottle. That air pushes the liquid so it ascends through the tube.
en.wikipedia.o...

[@conselhosdeprof]

Cool! Was it a professional air dryer or a regular one? I am wondering if we need a super high temperature to quickly see the water going up... :)

[@artistsisters8683]

Wow looking for long video