These days, mercury is considered too risky to use in thermometers (due to the risk of them breaking and contaminating people). Alternate techniques are used today in clinical thermometer, including...
Thermometers.
Bulb Thermometers
The bulb thermometer is the common glass thermometer you probably grew up with. The thermometer contains some type of fluid, generally mercury.
Bulb...
There are at least three reasons for that fact 1.Mercury is a dangerous metal. 2.Mercury thermometers are made of brittle glass. 3.And many people do not think about the consequences of environmental...