What did Dewar study besides spectroscopy?
Botany
Liquefaction of gases
Geology
Meteorology
Answer
Liquefaction of gases was another area of study for Dewar. He made significant contributions to the field, developing methods for liquefying gases such as hydrogen, nitrogen, and oxygen. Dewar's work in this area laid the foundation for the development of cryogenics, the study of extremely low temperatures.
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