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Category : Scientist

1927 – Born in Los Angeles.             – An American astronomer.             – Is best known for his work on clusters of galaxies but was also a noted lecturer and author.   1958 – He published a catalog of 2,712 clusters and was preparing a catalog of southern clusters at the time of ..

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African American mathematician, astronomer, clockmaker, and publisher 1731 – Born on the 9th of November. 1753 – Made a wooden clock, which ran well for at least twenty years. 1789 – He was able to make the calculations to predict solar and lunar eclipses. 1792-1797 – Published the compile ephemeris for the Benjamin Banneker’s Almanac, ..

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1732 – Born February 22, in Westmoreland County, Virginia.   1759 – January 6, Washington married Martha Dandridge Custis.   1754 – 1763 – Gained command experience during the French and Indian War.   1775 – 1783 – Led America’s Continental Army to victory over Britain in the American Revolutionary War which led to the ..

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384 BC – Aristotel was born in Stagira, on the peninsula of Chalcidice.   Ancient Greek philosopher, a student of Plato and teacher of Alexander the Great.   He wrote diverse subjects like physics, poetry, zoology, logic, rhetoric, politics, government, ethics, and biology.   347 BC – After the death of Plato he was to ..

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1948 – Born on the 2nd of September in Boston, Massachusetts. 1966 – She attended and graduated from Marian High School. 1970 – Attended Framingham State College in her hometown and graduate. 1978 – Moved to Concord, New Hampshire, when Steven accepted a job as an assistant to the state attorney general. 1982 – She ..

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  Claudius Ptolemy was a Greek mathematician and astronomer who lived in Alexandria, Egypt during the second century CE. While little is known about the life of Ptolemy, his nomen, or clan name, Claudius, indicates that he was a Roman citizen while Ptolemy is a Homeric name appearing in Greek mythology. Ptolemy was born around ..

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1925 – Born 12th of March in Lackawanna, New York. 1943-1946 – Served in the U. S. Army in the 102nd Infantry Division in the Central Europe/Rhineland Campaigns.          – Attained the rank of Staff Sergeant – Battalion Aid Station. He was awarded a Bronze Star with Oak Leaf Cluster (twice), Purple Heart with Oak ..

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1838 – He was born on the 20th day of March at Bonn.    1861 – He was educated in his native town, and graduated Ph.D. at the university.   1863 – He became professor of geology in Vienna, but in early years he was engaged in teaching geology and mineralogy.   1868 – He ..

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1839 – He was born on the 25th day of September at Bahlingen in Baden.  1863 – He became teacher of geology and mineralogy in the polytechnic at Karlsruhe, and three years later he succeeded Oppel as professor of palaeontology in the University of Munich.  1870 – He was appointed to the geological professorship, and ..

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