Tiberius Cavallo (also Tiberio) (30 March 1749, Naples, Italy – 21 December 1809, London, England) was an Italian physicist and natural philosopher. His interests included electricity, the development of scientific instruments, the nature of "airs", and ballooning. He became both a Member of the Royal Academy of Sciences in Naples, and a Fellow of the Royal Society of London in 1779. Between 1780 and 1792, he presented the Royal Society's Bakerian Lecture thirteen times in succession. Source: Wikipedia (en)