The Sandy Hook Lighthouse
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For many years the light in the Sandy Hook lighthouse was provided by burning whale oil in metal lamps and with mirror-like reflectors.
Finally in 1822, Augustin Fresnel of France introduced a glass lens that revolutionized the lighting of light- houses. These lenses were made of thick glass prisms that greatly magnified the light into a powerful beam that could be seen for many miles at night.
Over the years these lenses were upgraded a number of times,
Original file name 48764987493_8d2c7c7049_o.jpg
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Keywords
Sandy Hook Lighthouse, New York Light House, Historic Lighthouse, American History, The American Revolution, U.S. National Register of Historic Places, U.S. National Historic Landmark, New Jersey Register of Historic Places, Gateway National Recreation Area, National Park Service, NPS, Sandy Hook, The Jersey Shore, Jersey Shore, Jersey Shore Lighthouse, The Shore, New Jersey Shore, Monmouth County, New Jersey, NJ, Jersey, The Garden State
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