Why do wood wardrobes randomly make crackling noises?
In: 33
Humidity changes, mostly. The moisture content of the air changes throughout the day as the temperature rises and falls. Wood will absorb or release moisture into the air, depending on the humidity and will expand and contract as it does so.
Thin wood sections will be affected quickest. Musical instruments will need retuning as they change shape, mostly caused by going in or out of different buildings. Prolonged low humidity may cause antique instruments to crack (don’t ask how I know that).
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