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]
Answer:
The Boston Massacre was a street fight that occurred on March 5, 1770, between a "patriot" mob, throwing snowballs, stones, and sticks, and a squad of British soldiers. Several colonists were killed and this led to a campaign by speech-writers to rouse the ire of the citizenry.
Explanation:
That after becoming emperor, Napoleon would continue his attempts at conquest is the historical fact that cartoon accurately foreshadow.
<u>Explanation:</u>
- The coronation of the napoleon was in an unnatural way that he himself crone directly in 1804 but after five years the french senate declared him as official emperor.
- In 1803 the Britain political release a cartoon about the Napolean Bonaparte demanding the crown with the tag line " crying for new toy " on 25 January.
- His coronation was painted by Jacques Louis. During the Napolean period there was a serious french revolution and coalition with the British. He fought over 60 wars and only lost in 8 wars .
The correct answer is A) Checks and balances.
In the United States Constitution, the three different branches of the federal government each have unique powers. The legislative branch (Congress) has the ability to make laws, the executive branch (president) has the ability to enforce laws, and the judicial branch (Supreme Court) has the power to interpret laws. This system ensures that no one group of politicians have too much political power.
This concept applies to the appointment of federal judges as well. The executive branch has the ability to nominate judges. However, these judges must be approved by Congress. This check on the power of the president makes it so that Congress can ask questions and make sure that the person being nominated for this job is qualified to perform it.
