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.
A famous Italian scientist and astronomer who proved that all  objects revolve around the sun, not the earth. He supported Nicolas  Copernicus's theory. He invented the refr â¦ actor telescope,  discovered the craters on the moon, the four largest moons of  Jupiter and phases of Venus. He lived from 1564-1642. He also  disvcovered that no matter the mass of two objects, they both fall  at the same speed. He had three children, two were girls.    He was an astronomer, philosopher, mathematician, physicist, and  inventor. He was the inventor of the telescope.