The submarine became a potentially viable weapon with the development of the Whitehead torpedo, designed in 1866 by British engineer Robert Whitehead, the first practical self-propelled or 'locomotive' torpedo.[20] The spar torpedo that had been developed earlier by the Confederate States Navy was considered to be impracticable, as it was believed to have sunk both its intended target, and probably H. L. Hunley, the submarine that deployed it. In 1878, John Philip Holland demonstrated the Holland I prototype.
Discussions between the English clergyman and inventor George Garrett and the Swedish industrialist Thorsten Nordenfelt led to the first practical steam-powered submarines, armed with torpedoes and ready for military use. The first was Nordenfelt I, a 56-tonne, 19.5-metre (64 ft) vessel similar to Garrett's ill-fated Resurgam (1879), with a range of 240 kilometres (130 nmi; 150 mi), armed with a single torpedo, in 1885.
A reliable means of propulsion for the submerged vessel was only made possible in the 1880s with the advent of the necessary electric battery technology. The first electrically powered boats were built by Isaac Peral y Caballero in Spain (who built Peral), Dupuy de Lôme (who built Gymnote) and Gustave Zédé (who built Sirène) in France, and James Franklin Waddington (who built Porpoise) in England.[21] Peral's design featured torpedoes and other systems that later became standard in submarines.[22][23]
Rhode Island, measuring only about 48 miles long and 37 miles wide, is the smallestof the U.S. states. Despite its small area, Rhode Island, known as the “Ocean State,” boasts over 400 miles of coastline. Rhode Island was founded by Roger Williams in 1636, who had been banished fromthe Massachusetts colony for hisadvocacy ofreligious tolerance and the separation of church and state.During the colonial period, Newport was a major hub for shipping and trade, and in the 19th century Rhode Island was at the forefront of the Industrial Revolution and the establishment of power-driven textile mills.Rhode Island hosted the first National Lawn Tennis Championship in 1899, and is home to the Tennis Hall of Fame.Famous Rhode Islanders include novelists Cormac MacCarthy and Jhumpa Lahiri, actor James Woods, television personality Meredith Vieira and Civil War U.S. Army officer Ambrose Burnside.
American colonial settlement could expand westward
The way that the Erie Canal improved transportation was given the fact that it provided a cheap and efficient way to move between the Hudson River and Lake Erie.
<h3>How the canal provided cheaper transportation</h3>
This canal helped the United States by providing a boost to the economy of the country.
The Erie Canal helped to cut the cost of transportation by one tenth of the previous cost.
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