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.
Even though most of his work were burned in the museum of Alexandria, the remnants gave enough ideas for modern day science and technology. 8. Galileo Galilei (1564-1642 AD) Born in Pisa, Italy in 1564, Galileo is called as the father of modern science because of his discoveries in astronomy and physics.