Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,140 pages of information and 223,036 images on early companies, their products and the people who designed and built them.
Leonhard Euler (15 April 1707 – 18 September 1783) was a Swiss mathematician, physicist, astronomer, geographer, logician and engineer who made important and influential discoveries in many branches of mathematics. He is also known for his work in mechanics, fluid dynamics, optics, astronomy and music theory.
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