8. Blaise Pascal
(June 1623 – 19 August 1662)
Blaise Pascal was born in Clermont-Ferrand, France. His father was a talented mathematician and a tax collector. He being a child prodigy was educated by his father.
Pascal was naturally very drawn towards mathematics. In 1642, while he was still a teenager, he started working on calculating machines. After three years of hard work, he was finally able to invent the mechanical calculator. He initially created a wooden box that had 16 separate dials.
Addition and subtraction was done by the turning of each dial. Pascal did what other has been trying to do and failed. Leonardo di vinci also tried to make a machine that was similar to the one made by Pascal. Who can deny that this invention is among the great inventions that have so far remained relevant?