cardiologist holding a heart. Cardiologists treat disease and injury of the heart and cardiovascular system. The Cardiologist Job Description can be divided into two parts; Cardiologist and Interventional Cardiologist. A cardiologist is a physician who specializes in diagnosing, treating and preventing diseases of the cardiovascular system, which includes the heart and the blood vessels.
Newton actually discovered calculus between 1665 and 1667 after his university closed due to an outbreak of the Plague. Newton was only 22 at the time, and he preferred not to publish his discoveries. Meanwhile, in Germany, Leibniz discovered Calculus independently and he was very open with his findings. This led to a bitter dispute between the two mathematicians later known as the Great Sulk. Today it is well known that both men discovered calculus independantly of the other, Leibniz about 8 years after Newton.
Sir Isaac Newton. (/ËnjuËtÉn/ ; 25 December 1642 â 20 March 1726/7) was an English physicist and mathematician (described in his own day as a  natural philosopher ) who is widely recognised as one of the most influential scientists of all time and as a key figure in the scientific revolution.ewton built the first practical reflecting telescope and developed a theory of colour based on the observation that a prism decomposes white light into the many colours of the visible spectrum. He formulated an empirical law of cooling, studied the speed of sound, and introduced the notion of a Newtonian fluid.