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The article discusses the physical theories of air according to the 16th century book "Quesiti et inventione diverse" by Niccoló Tartaglia. It describes Tartaglia's theory regarding the resistance of air and the characteristics of the force required to divide it. It then discusses Tartaglia's relation to the theories of Italian scientist Vannoccio Biringuccio, focusing on Biringuccio's understanding of the way sound travels on air. Other subjects under discussion include the study of air using cannons, the medieval treatise De rationeponderis, and the mathematician Jordanus Nemorarius.