Human flight is nothing but creativity of human mind and it undergoes several struggles to achieve excellence. In 1895, a well-known scientist Lord Kelvin, who was the President of Royal Society of London said, “Any thing heavier than air cannot fly, and cannot be flown.” Within a decade, Wright Brothers proved man could fly of course at heavy risk and cost. On the successful completion of Moon Mission in 1969, Von Braun, a very famous rocket designer, who built Saturn-V, to launch the capsule with astronauts and made moon walk a reality, in 1975 said “If I am authorized, I will remove the word impossible”. In ancient days, Ptolemaic astronomy was a widely used system in calculating the dynamics of various stars and planets. Assumption by then was that the earth is flat. What a scientific struggle had to take place to prove that the earth is spherical in shape orbiting around the sun. The three great astronomers Copernicus, Galileo and Kepler had to give a new dimension to the world of astronomy. Today we take it for granted that earth is a globe, orbiting around the sun, and the sun orbits in the Milky Way. All the technological advancements we have today are the outcome of scientific exploration of scientists of earlier centuries. At no time, man was beaten by problems. He strives continuously to subjugate impossibility and then succeeds. ccording to the laws of aerodynamics the bumble bee should never be able to fly. Because of the size, weight, and shape of its body in relationship to the total wing span, flying is scientifically impossible. The bumble bee, being ignorant of scientific theory, goes ahead and flies anyway. -Apj Abdul Kalam
Posted on: Wed, 11 Sep 2013 20:21:29 +0000
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