Sir James Dewar

Sir James Dewar was a British scientist known for inventing the vacuum flask, or what we call a thermos today. This invention helps keep liquids hot or cold by preventing heat transfer. Dewar’s work in low-temperature physics also led to the development of liquid gases like liquid oxygen and nitrogen, which are crucial in science and medicine. His research advanced our understanding of temperature and heat, making him a key figure in physics and refrigeration technology.