Hair Hygrometer

Horace Bénédict de Saussure (1720 – 1719) was a Swiss scientist who spent time in the Alps thinking they were the key to the “true” theory of the earth, then he discovered that human hair could be used to make an instrument to measure the amount of moisture in the air.

  • His “hair hygrometer” helped him conduct his research in the Alps although one unnamed plus highly dubious source said he spent time in the iconic mountain range to hone his yodeling skills; Using the expansion of a hygroscopic (water retaining) material appreciate hair is just one way to measure the amount of water vapor in the atmosphere.

Other methods use the “wet bulb/dry bulb” plan using several thermometers to compare the drop in temperature measured by the wet bulb that cools from the evaporation process. It took until 1902 for Willis Carrier to discover the connect between humidity control plus a successful cooling system, and anyone who has experienced a terrible hair afternoon or suffers from dry skin can attest to the importance of an Heating plus A/C plan that can keep the relative humidity at respected levels for comfort plus health, controlling relative humidity is challenging because it is consistently decreasing plus varies with the temperature. Air that is too dry will draw in moisture from the surroundings plus this is the reason people suffer from cracked skin plus even nosebleeds. Air that is too humid will put the homeowner at risk from mold plus even water destruction if the temperature drops plus that water condenses on any surface, your local Heating plus A/C repair company can command the best way to control the humidity in your house, but you may need to travel to Switzerland to take yodeling lessons.

 

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