it isnt! a rectal is.
thermometer
because it is more accurate
There are a variety of thermometers, and they can be extremely accurate. Sometimes scientists need to measure temperature to the thousandth of a degree Kelvin.
Great question. Well, everyday things such as speedometers and stop watches can measure speed. However, if you want to be really accurate then you can use a doppler radar
A thermometer used to measure body temperature is extremely accurate over an extremely small range of temperatures. It will give the temperature to the tenth of a degree. A laboratory thermometer does not have the partial degree separations but gives the temperature over a much wider range of temperatures.
To measure temperature
To Measure somethings temperature
Thermometer is used to measure temperature. it is measured in celsius, kelvin etc.
What kind of thermometer you use to measure the body temperature
A thermometer.
thermometer
Pyrometer
thermomiter
Until the advent of digital thermometers, liquid ones were used in most domestic situations: to measure the air temperature, body temperature (to check for fever), cooking temperatures, fridge temperatures (to ensure that they were cold enough).
because it is more accurate
A semiconductor device that is particularly sensitive to changes in temperature, permitting it to serve as an accurate measure of temperature.
There are a variety of thermometers, and they can be extremely accurate. Sometimes scientists need to measure temperature to the thousandth of a degree Kelvin.