Why is clinical thermometer have a thin glass wall?
I think its made of thin glass, because it allows the heat to reach the liquid quickly. Nowadays people refuse to use such a thermometer, because it contains mercury, which is a very dangerous element. Instead, people make the choice in favor of the infrared thermometer because it is better, more efficient and easier to use. You can find more about this at https://dunbarmedical.com/products/clinic-equipment-supplies/diagnostic-tool/infrared-thermometer/irt-1603-digital-infrared-thermometer/.