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    Charles Lyell, Principles of Geology  
Sir Charles Lyell was a British lawyer and the foremost geologist of his day. He is best known as the author of Principles of Geology, which popularised James Hutton's concepts of uniformitarianism – the idea that the earth was shaped by sl...
 
    Joseph Henry, Electromagnetic Relay  
Joseph Henry was an American scientist who served as the first Secretary of the Smithsonian Institution. He was the secretary for the National Institute for the Promotion of Science, a precursor of the Smithsonian Institution. He was highly...
 
    Samuel Morton, Natural Scientist  
Samuel George Morton was an American physician and natural scientist. Samuel George Morton is often thought of as the originator of "American School" ethnography, a school of thought in antebellum American science that claimed the differenc...
 
    George Biddell Airy, English Astronomer Royal  
Sir George Biddell Airy was an English mathematician and astronomer, Astronomer Royal from 1835 to 1881. His many achievements include work on planetary orbits, measuring the mean density of the Earth, a method of solution of two-dimensiona...
 
    Christian Doppler, Physicist  
Christian Andreas Doppler was an Austrian mathematician and physicist. He is celebrated for his principle — known as the Doppler effect — that the observed frequency of a wave depends on the relative speed of the source and the observer. He...
 
    Liebig, Father of Fertilizer  
Justus Freiherr von Liebig was a German chemist who made major contributions to agricultural and biological chemistry, and worked on the organization of organic chemistry. As a professor, he devised the modern laboratory-oriented teaching m...
 
    Wilhelm E. Weber, Electromagnetic Telegraph  
Wilhelm Eduard Weber was a German physicist and, together with Carl Friedrich Gauss, inventor of the first electromagnetic telegraph. In 1856 with Rudolf Kohlrausch (1809–1858) he demonstrated that the ratio of electrostatic to electroma...
 
    Robert FitzRoy, Captain of HMS Beagle  
Vice-Admiral Robert FitzRoy RN achieved lasting fame as the captain of HMS Beagle during Charles Darwin's famous voyage, and as a pioneering meteorologist who made accurate weather forecasting a reality. He was an able surveyor and hydrogra...
 
    Johann Benedict Listing, Mathematician  
Johann Benedict Listing was a German mathematician. J. B. Listing was born in Frankfurt and died in Göttingen. He first introduced the term "topology", in a famous article published in 1847, although he had used the term in correspondence s...
 
    Charles Darwin, Evolution Theory - 1859  
Charles Robert Darwin was an English naturalist who realised and presented compelling evidence that all species of life have evolved over time from common ancestors, through the process he called natural selection. The fact that evolution o...
 
    Edward Blyth, Zoologist  
Edward Blyth was an English zoologist and pharmacist. He was one of the founders of zoology in India. Blyth was born in London in 1810. In 1841 he travelled to India to become the curator of the museum of the Royal Asiatic Society of Bengal...
 
    Henry Rawlinson, Deciphered Cuneiform  
Sir Henry Creswicke Rawlinson, 1st Baronet GCB was an English soldier, diplomat and orientalist. He is sometimes referred to as the "Father of Assyriology." Knowledge of cuneiform was lost until 1835 when Henry Rawlinson, a British East Ind...
 
    Le Verrier, Co-discovery of Neptune  
Urbain Jean Joseph Le Verrier was a French mathematician who, beginning in 1838, studied the causes of perturbations in the Solar System. His work led to improved knowledge of the masses of the planets, the scale of the Solar System, and th...
 
    Galle, Discovery Neptune - 1846  
Johann Gottfried Galle was a German astronomer at the Berlin Observatory who, with the assistance of student Heinrich Louis d'Arrest, was the first person to view the planet Neptune, and know what he was looking at, on 23 September, 1846. H...
 
    John Snow, Physician  
John Snow, Physician, reformer. During the cholera epidemics of the late 1840s and early 1850s, physician John Snow realized that cholera is transmitted through contaminated water. His essay, "On the Mode of Communication of Cholera" was fi...
 
       
         
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