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My father, a mercenary soldier, died when I was five years old and I spent my childhood living and working in my grandfather’s inn.

At my second wedding, I was intrigued by the way the volume of the wine barrels was determined, and my interest resulted in a study of the volumes of solids of revolution.

As an astronomer, I had to do intense calculations to come up with astronomical tables – my calculations for the orbit of Mars alone take up nearly a thousand folio sheets of arithmetic.

I developed a new design for the telescope using two convex lenses that was so successful it no longer bears my name but is simply called the astronomical telescope.

Today, I am chiefly remembered for discovering the three laws of planetary motion.

Answer: Johannes Kepler (1571-1630)