English, 21.05.2020 03:01 ineedhelpasap12
Historic Inventions by Rupert S. Holland (adapted excerpt) Humphrey Davy invented the safety-lamp that helped protect miners from the perils of flammable fire-damp1. Explosions of coal-gas were only too common in the mines of England, leading to detrimental effects on those who labored underground. The biggest mine-owners met to see whether some protection against such accidents could not be devised. After much discussion, they appointed a committee to call on Sir Humphrey Davy and asked him to investigate the possibilities for them. He took up the question, experimented with fire-damp, and found that it was in reality light carburetted hydrogen. He visited many mines and took into careful consideration the conditions under which the men worked. For months he investigated and experimented, and in 1815, he constructed the safety-lamp. This was an oil lamp, which had a chimney or cage of wire gauze that kept the flame of the lamp from passing through and igniting the fire-damp outside. The cage allowed air to pass and light to escape. Even if the combustion of the fire-damp caused the wire gauze to become red hot, it was still efficient as a safety-lamp. 1. a combustible gas especially methane 6 Select the correct answer. Which statement best describes the writer's purpose? A. to instruct B. to persuade C. to entertain D. to inform
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English, 22.06.2019 04:20
Write one paragraph that evaluates the effectiveness of jack zipesβs essay.
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English, 22.06.2019 08:00
Read jonathan swift's essay "a modest proposal." note the six numbered arguments that swift makes midway through the essay. write down your analysis and response to his arguments. as you write your response, keep in mind his central themes and ideas in the essay.
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English, 22.06.2019 11:30
What is the central idea of the "allegory of the cave"? a. most men live chained to the wall of a cave all of their lives, facing a blank wall, and trying to guess the nature of objects reflected by a fire. b. a philosopher is like a prisoner freed from the cave that comes to understand that the shadows are not reality, rather he understands reality by his experience. c. men who allow their experience to be shaped by perceptions and shadows do not know a better life. d. a philosopher must return to share the news of enlightenment with others who will not necessarily accept his good news. part
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Historic Inventions by Rupert S. Holland (adapted excerpt) Humphrey Davy invented the safety-lamp th...
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