John Roebling, the designer of the Brooklyn Bridge, was a civil engineer who invented twisted wire-rope cable.
Answer: Option A
<u>Explanation:</u>
Jhon Roebling, born on 1806 was a German immigrant who migrated to the united states around 1830. When he was hired to develop a canal system for Pennsylvania, he could see the hemp ropes which they used to pull up the barges were not strong enough.
He then started to venture the ideas to make strong as well as flexible ropes by twisting and winding together several steel wires. He then patented his invention in 1842.
He was the creator of the first wire suspension bridge between 1844 & 1845. Jhon Roebling founded a company of manufacturing wire cables in Trenton, New jersey. He flourished and continued his journey of constructing various structures and died in 1869.
<span>The system of cooperation known as feudalism ended around the 15th century.
Feudalism was a complex system of relationships between people of different classes. The king stood at the top of the system, and nobles were viewed as holding their lands in exchange for their military service to the king. The nobles then had vassals underneath them. And at the bottom of the system, depending on the upper classes for protection and laws, were the peasants, who gave a share of their produce to the lords above them as their part of the exchange.
As a dominant system of society in Western Europe, feudalism had faded by 1500. One reason was that kings had begun to employ professional soldiers for their armies, rather than relying on the nobles to be called upon when needed. Also, the plague of the Black Death that swept through Europe in the 14th century had disrupted the relationships between the nobility and the lower classes. Aspects of feudalism persisted in Europe for a couple centuries, but the full system had reached the end of its dominance in society by the 15th century. In France, all last vestiges of feudalism were abolished during the French Revolution of the 18th century.</span>
The story numbers give us is an amount of a price, because them actually being the price is telling us.
Less than "fifteen percent" of the Japanese people are farmers (in Japan, that is), due mostly to a large technological boom period and the fact that land is limited.
