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Figure 1.6: “Action” and “Reaction” situation



               Do you know?


                                    Sir  Isaac  Newton  (25  December  1642  –  20  March  1727)  was  an

                                    English mathematician, astronomer, and physicist (described in his own
                                    day as a "natural philosopher") who is widely recognised as one of the

                                    most influential scientists of all time and a key figure in the scientific
                                    revolution.

                                   Newton's  Principia  formulated  the  laws  of  motion  and  universal

                  Isaac Newton      gravitation that dominated scientists' view of the physical universe for
                   (1642-1727)      the next three centuries.

                                    Newton also built the first practical reflecting telescope and developed

                                    a sophisticated theory of colour based on the observation that a prism
                                    decomposes white light into the colours of the visible spectrum.





























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