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A 1682 demonstration of Huygens gunpowder engine, where a dram of gunpowder creates enough vacuum to lift 8 boys into the air. Huygens, however, became interested in the mechanical power of the vacuum, and the possibility of using gunpowder to produce one. In 1678 he outlined a gunpowder engine consisting of a vertical tube containing a piston ...
The Continental Powder Works at French Creek is a historic gunpowder manufacturing complex in East Pikeland Township, Chester County, Pennsylvania. Constructed on French Creek in early 1776 and intended to supply the Continental Army during the American Revolutionary War , the mill was the only powder mill and gun factory commissioned by the ...
The Frankford Powder-Mill is a historic gunpowder factory in the Frankford neighborhood of Philadelphia, Pennsylvania. At the time it was built in 1774 by Oswald Eve, it was the only such mill in the American colonies. Other powder mills operated in the 17th and 18th centuries but stopped production after the French and Indian war.
Powder mills were originally powered by windmills, water mills or horse mills. Despite later availability of steam engines, the older power sources did not require a fire to generate steam, and avoided the possibility of sparks which might ignite the gunpowder. Some 20th-century powder mills used electric power.
The chimney is the only remaining portion of the original powder works. The B/G E. Porter Alexander Camp #158, Sons of Confederate Veterans, spent eight years raising $192,000 to restore the chimney with its historical marker; work started on November 19, 2009, and was completed on March 12, 2010.
During the American Civil War, the mill was one of the three chief sources of gunpowder for the Union forces, producing up to 12,500 lb (5,700 kg) a day. At its peak, the Hazard Powder Company operated in 125 buildings occupying hundreds of acres of land. [1] [2] [3] It had 25 water wheels and three steam engines along a mile of Scantic River ...
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This is an accepted version of this page This is the latest accepted revision, reviewed on 30 January 2025. Classified advertisements website Craigslist Inc. Logo used since 1995 Screenshot of the main page on January 26, 2008 Type of business Private Type of site Classifieds, forums Available in English, French, German, Dutch, Spanish, Italian, Portuguese Founded 1995 ; 30 years ago (1995 ...