What did Leonardo da Vinci’s hygrometer measure?
Answer
Humidity
Leonardo da Vinci’s hygrometer was intended to measure humidity.
A hygrometer measures the amount of moisture in air. Leonardo designed an early form using materials whose weight changed as they absorbed moisture, allowing differences in atmospheric dampness to be compared.
His work belongs to a period when scientists were beginning to create instruments for systematic observation of weather and the environment. Leonardo frequently studied how materials responded to water, air, heat, and motion.
A hygrometer is different from an anemometer, which measures wind speed, and a rain gauge, which measures precipitation. Leonardo’s design did not provide the precise digital readings familiar today, but it represented an early attempt to quantify atmospheric moisture.