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Blaise Pascal, Inventing a Calculator > 
Blaise Pascal, the French scientist was one of the most reputed mathematician and physicist of his time. He is credited with inventing an early calculator, amazingly advanced for its time. A genuis from a young age, Blaise Pascal composed a treatise on the communication of sounds at the age of twelve, and at the age of sixteen he composed a treatise on conic sections.
The Pascaline - The idea of using machines to solve mathematical problems can be traced at least as far as the early 17th century. Mathematicians who designed and implemented calculators that were capable of addition, subtraction, multiplication, and division included Wilhelm Schickhard, Blaise Pascal, and Gottfried Leibnitz. In 1642, at the age of eighteen Blaise Pascal invented his numerical wheel calculator called the Pascaline to help his father a French tax collector count taxes. The Pascaline had eight movable dials that added up to eight figured long sums and used base ten. When the first dial (one's column) moved ten notches - the second dial moved one notch to represent the ten's column reading of 10 - and when the ten dial moved ten notches the third dial (hundred's column) moved one notch to represent one hundred and so on.
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More on this Website >
• http://inventors.about.com/lib ... ventors/blpascal.htm
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Leonardo da Vinci
Leonardo da Vinci, Florentine artist, one of the great masters of the High Renaissance, celebrated as a painter, sculptor, architect, engineer, and scientist. His profoun... |
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John Napier, Inventor of Logarithms
John Napier has gone down in history as the Scottish mathematician who invented logarithms (1614) and ‘Napier’s bones’, an early mechanical calcul... |
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Pierre de Fermat, French Mathematician
Pierre de Fermat was a French lawyer at the Parlement of Toulouse, France, and a mathematician who is given credit for early developments that led to modern calculus. In... |
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Gottfried W. Leibniz, Discovery of Calculus
German philosopher, physicist, and mathematician whose mechanical studies included forces and weights. He believed in a deterministic universe which followed a "pre-estab... |
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Charles Babbage, Invention Computer
Charles Babbage was an English mathematician, analytical philosopher, mechanical engineer and (proto-) computer scientist who originated the idea of a programmable comput... |
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