Samuel Klingenstierna

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Samuel Klingenstierna(1698-1765) was a very renowned Swedish scientist. He started his career as a lawyer but soon moved to natural philosophy. He was the first to enunciate errors in Newton's theories of refraction, geometrical notes that were used by John Dollond in his experiments. Later on he was instrumental in the invention of the achromatic telescope.

He was made a professor of Uppsala University in 1728.