The growth of cities, the construct

The growth of cities, the construction of hundreds of new factories, and the spread of railroads in the United Stases before 1850 had increased the need for better illumination. But the lighting in American homes had improved very little over that of ancient times. Through the colonial period, homes were lit with tallow candles or with a lamp of the kind used in ancient Rome- a dish of fish oil or other animal or vegetable oil in which a twisted rag served as a wick. Some people used lard, but they had to heat charcoal underneath to keep it soft and burnable. The sperm whale provided superior burning oil, but this was expensive. In 1830 a new substance called “camphene” was patented, and it proved to be an remained expensive, had an unpleasant odor, and also was dangerously explosive.
Between 1830 and 1850 it seemed that the only hope for cheaper illumination in the United States was the wider use of gas. In the 1840s American gas manufacturers adopted improved British techniques for producing illuminating gas from coal. But the expense of piping gas to the consumer remained so high that until mid- century gas lighting was feasible only in urban areas, and only for public buildings for the wealthy. In 1854 a Canadian doctor, Abraham Gesner, patented a process for distilling a pitch like mineral found in New Brunswick and Nova Scotia that produced illuminating gas and an oil that he called “kerosene” (from “keros”, the Greek word for wax, and “ene” because it resembled camphene). Kerosene, though cheaper than camphene, had an unpleasant odor, and Gesner never made his fortune from it. But Gesner had aroused a new hope for making illuminating oil from a product coming out of North American mines.
1. Which of the following is NOT mentioned as a reason why better lighting had become necessary by the mind- nineteenth century?

Kết quả (Anh) 1:

The growth of cities, the construction of hundreds of new factories, and the spread of railroads in the United Stases before 1850 had increased the need for better illumination. But the lighting in American homes had improved very little over that of ancient times. Through the colonial period, homes were lit with tallow candles or with a lamp of the kind used in ancient Rome-a dish of fish oil or other animal or vegetable oil in which a twisted rag served as a wick. Some people used lard, but they had to heat charcoal underneath to keep it soft and burnable. The sperm whale provided superior burning oil, but this was expensive. In 1830 a new substance called "camphene" was patented, and it proved to be an remained expensive, had an unpleasant odor, and also was dangerously explosive. Between 1830 and 1850 it seemed that the only hope for cheaper illumination in the United States was the wider use of gas. In the 1840s American gas manufacturers adopted improved British techniques for producing the illuminating gas from coal. But the expense of piping gas to the consumer remained so high that until mid-century gas lighting was feasible only in urban areas, and only for public buildings for the wealthy. In 1854 a Canadian doctor, Abraham Gesner, patented a process for distilling a pitch like mineral found in New Brunswick and Nova Scotia that produced illuminating gas and an oil that he called "kerosene" (from "keros", the Greek word for wax, and "SE" because it resembled camphene). Kerosene, though cheaper than camphene, had an unpleasant odor, and never made his fortune Gesner from it. But Gesner had getting aroused a new hope for making illuminating oil from a product coming out of North American mines.1. Which of the following is NOT mentioned as a reason why better lighting had become necessary by the mind-nineteenth century?

Kết quả (Anh) 2:

The growth of cities, the construction of new factories Hundreds of, and the spread of Railroads in the United Stases is before 1850 Had Increased Need for better illumination the. But the lighting in American homes Had very little improved over của Ancient times. Through the colonial period, with tallow candles lit là homes or with a lamp of the kind used in ancient Rome- a dish of fish oil or other animal or vegetable oil a twisted rag chứa served as a wick. Some People used Lard, but chúng Had to heat charcoal to keep it soft and Underneath burnable. The sperm whale oil burning superior given below, but this was expensive. In 1830 a new substance gọi "camphene" was patented, and it proved to be an expensive remained, an unpleasant odor hda, and am also Dangerously explosive was.
Between 1830 and 1850 it seemed hope for cheaper là only illumination in the United States was the wider use of gas. In the 1840s American gas manufacturers improved Adopted Techniques for producing illuminating British gas from coal. But the expense of piping gas to the consumer remained high compared có gas purchase until Mid-century urban lighting was feasible only in which areas, and only for public buildings for the Wealthy. In 1854 a Canadian doctor, Abraham Gesner, patented a process for distilling a pitch like mineral found in New Brunswick and Nova Scotia có Produced gas and an oil illuminating an interior gọi "kerosene" (from "KEROS", the Greek word for wax, and "ene" because it resembled camphene). Kerosene, though cheaper coal camphene, an unpleasant odor hda, and Gesner never made his fortune from it. But Gesner Had aroused hope for making a new illuminating oil from a product coming out of North American mines.
1. Which of the theo is NOT Mentioned as a reason why better lighting by the mind- Had trở nineteenth century NECESSARY?