German physicist and musician Ernst Chladni died #OTD in 1827.
His most important work, for which he is sometimes labeled as the father of acoustics, included research on vibrating plates (the so-known Chladni figures or Chladni patterns) and the calculation of the speed of sound for different gases. He also undertook pioneering work in the study of meteorites and is regarded by some as the father of meteoritics.
