Thermometer

Bio
The Professor creates a thermometer to "take the temperature" of a volcano. The idea seems ludicrous given the materials the Professor's thermometer is made of. It is also unclear how he calibrates his thermometer to ensure accuracy.

Components

 * Gourd
 * Bamboo shaft
 * Transparent material (Glass?)
 * Red Liquid (Unknown)

Episode(s)

 * Operation: Steam Heat