Henry Cavendish was a renowned British scientist of the eighteenth century who is credited with discovery of the element hydrogen. His scientific experiments were instrumental in reformation of chemistry and heralded a new era in the field of theoretical chemistry. He always possessed a scientific bent of mind and after completing his schooling he enrolled at the prestigious ‘Cambridge University’ to pursue higher studies but soon dropped out to pursue his own scientific research. He was always known for his ability to record precise measurements and it was the reason the ‘Royal Greenwich Observatory’ hired him for auditing and evaluating the meteorological instruments. His expertise with instruments is evident in many of his scientific pursuits including the Cavendish Experiment to determine the mass of earth and experiments perform to estimate the composition of atmospheric air. He is also renowned as one of the first scientists who propounded the theory of Conservation of mass and heat. Despite his accomplishments Cavendish led a life of isolation and was wary of social gatherings. Even during the Royal Society dinners, which were the only social gatherings he attended, this remarkable chemist was found lurking in the empty corridors and sneaked in when no one was noticing. Read on to know more about his scientific contributions and life.