Guitar building tips

Relative humitiy

                    Water capacity of the air 
Relative humidity = --------------------------- x 100
                    Maximum possible amount of 
                    water in the air

The maximum possible amount of water in the air depends on air temperature. Warm air can hold more water than cold air. If you take a hot shower the warm air is saturated with water. When you open the window the air cools down and cannot hold the water any longer. The bathroom mirror steams up.

A relative humidity of 50 per cent means that the air could contain twice as much water than it contains actually.


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