Sensory deprivation or perceptual isolation is the deliberate reduction or removal of stimuli from one or more of the senses. Simple devices such as blindfolds or hoods and earmuffs can cut off sight and hearing, while more complex devices can also cut off the sense of smell, touch, taste, thermoception (heat-sense), and 'gravity'.
Leonardo da Vinci (1452~1519), the great Italian artist, architect, and man of science, made the first scientific experiments In the field of aviation. He devoted many years of his life to understanding the mysteries of flight, and he left the world 160 pages of descriptions and sketches of flying machines.
Enrico Fermi (Italian:; 29 September 1901 â 28 November 1954) was an Italian physicist and the creator of the world's first nuclear reactor, the Chicago Pile-1. He has been called the architect of the nuclear age and the architect of the atomic bomb.