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.
It being the first public flight in the world, he was hailed as the inventor of the airplane all over Europe. It was only later that the secretive Orville and Wilbur Wright proved they had beaten Santos-Dumont at Kitty Hawk, North Carolina, three years earlier on December 17.sk anyone in Brazil who invented the airplane and they will say Alberto Santos-Dumont, a five-foot four-inch (1.6 meter) bon vivant who was as well known for his aerial prowess as he was for his dandyish dress and high society life in Belle Epoque Paris.