David Rittenhouse Born: 8-Apr-1732 Birthplace: Germantown, PA Died: 26-Jun-1796 Location of death: Philadelphia, PA Cause of death: unspecified Remains: Buried, Laurel Hill Cemetery, Philadelphia, PA
Gender: Male Religion: Presbyterian Race or Ethnicity: White Sexual orientation: Straight Occupation: Astronomer, Mathematician, Government Nationality: United States Executive summary: Early Pennsylvania scientist and statesman David Rittenhouse is often cited as America's second foremost scientist of the 18th century, behind only Benjamin Franklin. Almost entirely self-taught, he studied books inherited from his uncle, a furniture maker, and used his uncle's tools to construct clocks as a teenager. He soon had a successful business building mathematical and astronomical instruments, and also worked as a surveyor. He designed and built orreries (apparatus for modeling the positions and movements of the planets), constructed his own observatory at his father's farm, and in 1768 used a telescope of his own design to note that Venus has an atmosphere. He also wrote respected papers on mathematics, experimented with magnetism and electricity, and in 1763 surveyed the Pennsylvania-Maryland border using his own hand-made instruments.
During the American Revolution he served in the Pennsylvania Assembly, and chaired the Council of Safety, which had de facto control of the colony's government during the drafting of the Pennsylvania's Constitution. He oversaw manufacture of weapons for Pennsylvania's colonial rebels, gathering lead weights from Philadelphia's clocks and machinery and substituting iron weights, diverting the lead to use for musket shot. In the newfound nation of America he was appointed by George Washington as the first director of the US Mint, and hand-struck the nation's first coins. He is the namesake of Philadelphia's Rittenhouse Square. His nephew, William Barton, was co-designer of the Great Seal of the United States.
Father: Matthias Rittenhouse (farmer) Mother: Elizabeth Williams Rittenhouse (farmer) Sister: Anne Rittenhouse Sister: Eleanor Rittenhouse Sister: Esther Rittenhouse Barton Brother: Nicholas Rittenhouse Wife: Eleanor Coulston Rittenhouse (m. 1766, d. 1770 childbirth, two daughters) Daughter: Elizabeth Rittenhouse Sergeant Daughter: Susan Rittenhouse Bechtel Hunsicker Wife: Hannah Jacobs Rittenhouse (m. 1772, one child)
Professor: Astronomy, University of Pennsylvania (1779-82) Administrator: Vice Provost, University of Pennsylvania (1780-82) Administrator: Trustee, University of Pennsylvania (1779-80, 1782-96)
American Philosophical Society President (1791-96) American Academy of Arts and Sciences Royal Society US Official Director of the US Mint (1792-95) Pennsylvania State Official State Treasurer (1777-89) Pennsylvania State House of Representatives (1776) Pennsylvania State Official Chairman of Council of Safety (thrice in 1776) Pennsylvania State Official City Surveyor, Philadelphia (1774-75) Lunar Crater Rittenhouse (74.5° S, 106.5° E) German Ancestry
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