negative 40 degrees
-40c (apex)
At a temperature of -40 (minus forty) degrees, the Celsius and Fahrenheit scales read the same number.
At -40 degrees.
0 degrees
The two types of thermometers are the total immersion and partial immersion thermometers. However, they both read temperature the same way!
negative 40 degrees
-40c (apex)
At a temperature of -40 (minus forty) degrees, the Celsius and Fahrenheit scales read the same number.
Celsius and Fahrenheit thermometers will read the same temperature at -40 degrees, as -40 degrees Celsius is equal to -40 degrees Fahrenheit.
To read temperature...
same size and shape
Thermometers are usually graded with either the Celsius or Fahrenheit scales or both. Sometimes (if circumstances require) they are graded with the Kelvin scale.
I believe that would mean that the air is completely saturated with moisture-- 100% humidity.
When the two thermometers read nearly the same on a psychrometer, it indicates that the air is near saturation. This means that the relative humidity is high, as the air is holding almost as much moisture as it can.
No, mercury is not present in all types of thermometers. While mercury thermometers are common, other types such as digital thermometers and infrared thermometers do not contain mercury. Mercury thermometers are being phased out due to environmental concerns.
You can read the temp a lot easier.