Linda Hall Library
Science Engineering Technology

Scientist of the Day

Georg Ohm

March 16, 2017

Georg Simon Ohm, a German physicist and mathematician, was born Mar. 16, 1789. Ohm was attracted to the mathematical physics of Joseph Fourier, who had recently produced a complete mathematical theory of heat, but Ohm was also interested in the brand-new discoveries...

John Snow

March 15, 2017

John Snow, an English physician, was born Mar. 15, 1813.  In 1854, London was suffering through yet another cholera epidemic. Snow had long suspected that cholera is not caused by “miasmas” (air-borne infections), but rather by contaminants in the water supply. During...

Giovanni Schiaparelli

March 14, 2017

Giovanni Schiaparelli, an Italian astronomer, was born Mar. 14, 1835.  In 1877, Mars passed very close to the Earth, in what we call an opposition, and Schiaparelli, working in Bologna, used the opportunity to study the Martian features in detail. He published the...

Federico Cesi

March 13, 2017

Federico Cesi, an Italian nobleman and patron, was born Mar. 13, 1585. In 1603, when he was only 18 years old, Cesi formed an academy devoted to the study of nature, and he called it the Accademia dei Lincei, the Academy of the Lynxes, because of the animal’s...

George Steller

March 10, 2017

George Steller, a German zoologist and explorer, was born Mar. 10, 1709. Steller moved from Germany to St. Petersburg, and from there he joined the second exploring expedition of Vitus Bering in 1740. The Bering expedition made its way to the Kamchatka peninsula on...

David Fabricius

March 9, 2017

David Fabricius, a German astronomer, was born Mar. 9, 1564. In 1596, he observed a star in the breast of Cetus, the Whale. Some time later, he looked for the star, and it was gone. Later still, the star reappeared. This was the first recorded observation of a...