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Sarah Mather (1796, in Brooklyn \u2013 June 21, 1868) was an American inventor, best remembered for patenting the first underwater telescope.\n

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Background

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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 16 she received a patent for her innovation of the \u201csubmarine telescope and lamp\u201d. Unfortunately, much of her personal life is unclear, but she was a mother. At the time of her invention's patent US43465A,^[1] 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 beginning of submarine use in warfare, her invention and later improvements [^[2]] significantly impacted the defeat of the Confederates [^[3]]. She died on June 21, 1868.\n

Invention of the submarine telescope

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The invention, \u201cSubmarine Telescope and Lamp\u201d, and its later improvement, was created as an adjustable means to examine surroundings under water. Mather drew very detailed drawings, which gave a concise depiction to her invention, streamlining her patenting process. The light on the telescope allowed vision underwater for as far as 500 feet and as deep as 250 feet [^[4]]. This improved underwater visibility invention was created to solve the problem of the absence of underwater clarity for various reasons. This applied to vessel damages, animal exploration, general examination of the surroundings, and construction/demolition projects. However, the primary issue being solved was the issue of having to remove the ship from the water to examine damages. The structure of the telescope was adjustable, with watertight joints to better examine that which was needed. The lamp of the telescope was accompanied by a reflector globe which expanded visibility. Furthermore, the telescope included air circulation technology which prevented the collapse of the tube at different pressures [^[5]]. Mather created an original solution that further advanced the entire naval industry.\n

Impact on contemporary society

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Although Sarah Mather worked on and patented her invention over 200 years ago, her innovative solution has evolved to impact modern society. Her invention proceeded to inspire the modern aquascopes, bathyscapes, and parascopes. Underwater telescopes are being used to this day to better understand the world and save lives. Underwater investigations and searchparties use technology that take inspiration from the intentionality of Mather's underwater telescope. Sonar scans and diving teams have now largely taken over underwater investigation [^[6]], but the solution achieves a similar goal to that of the original telescope. Sarah's idea for improving underwater visibility has not gone entirely extinct as similar adjustable telescopes are being used to this day. In lake Baikal, for example, scientists are using BaikalGVD to search for neutrinos, the universes smallest known particles [^[7]]. The reinterpretation of Sarah's invention has changed with the advancement technology, but the original exploratory and saving nature of the \u201csubmarine telescope\u201d has not changed. Though there have been technological advancement in underwater visibility, and the invention my now\u2013in its original form\u2013be obsolete, it has inspired creations that have altered the world. Similar inventions have become a regular tool from military operations as well as optics used in medicine.\n

Sarah Mather may not have much known about her personal life, experiences, and relationships, but her invention has affected not only history and its inventions, but will most likely continue to inspire those in the future....\n

References

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^ https://patents.google.com/patent/US43465A/en?q=(Sarah+Mather)&oq=Sarah+Mather+&page=4\n
^ Serrano, A. (n.d.). Sarah Mather. Women's Activism NYC. Retrieved April 11, 2023, from https://www.womensactivism.nyc/stories/7389\n
^ Hall, S., & 8, S. H. on S. (2020, April 3). Mothers of invention: Sarah Mather and Martha Coston (also making Civil War Naval History). Digging History. Retrieved April 11, 2023, from https://digging-history.com/2014/06/02/mothers-of-invention-sarah-mather-and-martha-coston-also-making-civil-war-naval-history/\n
^ <Labrecque, E. (2017). Sarah Mather and Underwater Telescopes. Cherry Lake Publishing.\n
^ Mather, S. (1845, April 16). Submarine Telescope and Lamp.\n
^ Deep Trekker. (n.d.). Underwater Large Area Search & Recovery Tactics. Retrieved April 11, 2023, from https://www.deeptrekker.com/resources/underwater-search-recovery-tactics\n
^ Pappas, S. (2021, March 17). Why Russian scientists just deployed a giant telescope beneath Lake Baikal. LiveScience. Retrieved April 11, 2023, from https://www.livescience.com/russia-deploys-underwater-telescope-lake-baikal.html\n

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Sarah Mather

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