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Sarah Mather
Sarah Mather (1796, in Brooklyn Brooklyn () is a borough of New York City, coextensive with Kings County, in the U.S. state of New York. Kings County is the most populous county in the State of New York, and the second-most densely populated county in the United States, be ... – June 21, 1868) was an American inventor, best remembered for patenting the first underwater telescope. Background Sarah Mather, originally from Brooklyn, New York, is most known for her invention of the underwater telescope. Born Sarah Porter Stiman in 1796, she was married to Harlow Mather at age 23, in 1819. Several years later, in 1845, April 16th she received a patent for her innovation of the “submarine telescope and lamp”. Unfortunately, much of her personal life is unclear, but she was a mother. At the time of her invention’s patent, the U.S. was engaged in the Mexican-American War, but her work became most valuable in the time of the Civil War. With the begging of submarine use in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooklyn
Brooklyn () is a borough of New York City, coextensive with Kings County, in the U.S. state of New York. Kings County is the most populous county in the State of New York, and the second-most densely populated county in the United States, behind New York County (Manhattan). Brooklyn is also New York City's most populous borough,2010 Gazetteer for New York State . Retrieved September 18, 2016. with 2,736,074 residents in 2020. Named after the Dutch village of Breukelen, Brooklyn is located on the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underwater Telescope
An aquascope (also called bathyscope) is an underwater viewing device. It is used to view the underwater world often from dry land or a boat. It eliminates the water surface glare and allows viewing as far as water clarity and light permit. The underwater viewer can be used for observing reefs, checking boat moorings, secchi disks and other survey work. It is also used as educational tool to watch plants, creatures and habitats underneath the surface of rivers, lakes and seas. A more advanced version, an underwater telescope was patented by Sarah Mather in 1845 - U.S. Patent No. 3,995; it permitted sea-going vessels to survey the depths of the ocean. It used a camphine lamp in a glass globe that was sunk into the water. The device allowed the examination of a ship's hull and other details from the deck of a boat. In 1864, Mather added an improvement - U.S. Patent No. 43,465 to her previous invention to detect Southern underwater warships.Jacquelyn A. Greenblatt (1999) ''Women S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1796 Births
Events January–March * January 16 – The first Dutch (and general) elections are held for the National Assembly of the Batavian Republic. (The next Dutch general elections are held in 1888.) * February 1 – The capital of Upper Canada is moved from Newark to York. * February 9 – The Qianlong Emperor of China abdicates at age 84 to make way for his son, the Jiaqing Emperor. * February 15 – French Revolutionary Wars: The Invasion of Ceylon (1795) ends when Johan van Angelbeek, the Batavian governor of Ceylon, surrenders Colombo peacefully to British forces. * February 16 – The Kingdom of Great Britain is granted control of Ceylon by the Dutch. * February 29 – Ratifications of the Jay Treaty between Great Britain and the United States are officially exchanged, bringing it into effect.''Harper's Encyclopaedia of United States History from 458 A. D. to 1909'', ed. by Benson John Lossing and, Woodrow Wilson (Harper & Brothers, 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1868 Deaths
Events January–March * January 2 – British Expedition to Abyssinia: Robert Napier leads an expedition to free captive British officials and missionaries. * January 3 – The 15-year-old Mutsuhito, Emperor Meiji of Japan, declares the ''Meiji Restoration'', his own restoration to full power, under the influence of supporters from the Chōshū and Satsuma Domains, and against the supporters of the Tokugawa shogunate, triggering the Boshin War. * January 5 – Paraguayan War: Brazilian Army commander Luís Alves de Lima e Silva, Duke of Caxias enters Asunción, Paraguay's capital. Some days later he declares the war is over. Nevertheless, Francisco Solano López, Paraguay's president, prepares guerrillas to fight in the countryside. * January 7 – The Arkansas constitutional convention meets in Little Rock. * January 9 – Penal transportation from Britain to Australia ends, with arrival of the convict ship ''Hougoumont'' in Western Australi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
