Ernst Abbe

Gottlob Frege and the Formula Language of Pure Thinking

Gottlob Frege and the Formula Language of Pure Thinking

On November 8, 1848, German mathematician, logician and philosopher Gottlob Frege was born. He is considered as one of the fathers of modern mathematical logic and has developed the Begriffsschrift, an approach to put classical philosophical logic into a formal mathematical language. While he was mainly ignored by the intellectual world when he published his writings, Giuseppe Peano [7] and Bertrand Russell [8] introduced his work to later generations of logicians and philosophers. Unless…
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Joseph Jackson Lister – Perfecting the Optical Microscope

Joseph Jackson Lister – Perfecting the Optical Microscope

On January 11, 1786, British amateur opticist and physicist Joseph Jackson Lister was born. In 1826, Lister designed possibly the most important optical microscope ever made. It used an achromatic objective lens corrected for chromatic and spherical aberrations, the resulting image was at the time the clearest produced by any microscope. Joseph Jackson Lister – Family Background Joseph Jackson Lister was the son of a London wine merchant and Quaker. He attended school until 1800 and was then…
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Ernst Abbe – Brilliant Engineer and Courageous Social Reformer

Ernst Abbe – Brilliant Engineer and Courageous Social Reformer

On January 23, 1840, German physicist, optometrist, entrepreneur, and social reformer Ernst Abbe was born. Together with Otto Schott and Carl Zeiss, he laid the foundation of modern optics. As a co-owner of Carl Zeiss AG, a German manufacturer of research microscopes, astronomical telescopes, planetariums and other optical systems, Abbe developed numerous optical instruments. “Whatever entrepreneurial income is received shall be returned to the public, it does not belong to those who…
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