melting point; for annealing 800 degrees are needed. Iron‚ by comparison‚ has a melting point of 1538 degrees Celsius. Its low melting point makes copper easy to smelt‚ cast‚ and remelt without special furnaces or a heavy investment of fuel. Another advantage of copper is that it can be recycled without any loss of quality. As pure copper is too soft for structural elements or most practical appliances‚ it needs to be hardened and strengthened. It is therefore combined with
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from 1920 to 1933‚ during which the sale‚ manufacture‚ and transportation of alcohol for consumption were banned nationally[1] as mandated in the Eighteenth Amendment to the United States Constitution. Under substantial pressure from the temperance movement‚ the United States Senate proposed the Eighteenth Amendment on December 18‚ 1917. Having been approved by 36 states‚ the 18th Amendment was ratified on January 16‚ 1919 and effected on January 16‚ 1920. Some state legislatures had already enacted
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Vietnam ‚ India or Nepal . Without cigarette ‚ those people will be suffered for their lifes. However ‚ a coin always has two side . And of course ‚smoking also has the negative effect . The first and also the worst of smoking is going to effect human health . Thousand of researchs have been shown that smoking is the main reason to caused some cancers like lung or bronchitic .. .. And because of that ‚ it is wasted governments the big amount of money for people who are treating in hospitals . In
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all about robots; benefits‚ usage‚ characteristics and even the picture of upcoming future. 4) The journal that we had discovered was very helpful to know about some vital part in robots such as processors‚ neural scheme‚ Random Access Memory‚ Human Intelligence Technology‚ cameras to find objects‚ people‚ or other robots‚ Global Positioning System (GPS) receivers to determine the robot’s location‚ laser rangefinders to determine the distance between the robot and other objects‚ light sensors
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City is expected to be a best place where everyone can reach such better living conditions. Many people have been moving from their hometown in the countryside to start finding a chance in a big city. One of its advantages is that the city gives out many good conditions and environment for education‚ especially for youth. Moreover‚ there are great numbers of employment offered widely to everybody. However‚ pollution in big cities is such a big concern for many people. People can receive a good
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Give me balance‚ give me equality. In all fairness I believe Athens had the better system of government. I have come to this conclusion that Athens had a better system because anyone could hold office and they had more equal rights as a citizen in the government. Moreover‚ addressing the 11 million undocumented immigrants‚ I strongly believe that the United States should allow the immigrants to continuously live in the United States under some conditions. The Athenian Democracy remains
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Good afternoon everyone. The topic for our debate is that technology is making us less alienated‚ more sociable and more human. We‚ the negative team believe this statement is true. The first speaker Lily of the affirmative team has tried to tell you that… this is wrong because…the second speaker Lin of the affirmative team has tried to tell you that…this is wrong because…the third speaker of the affirmative team Moha has tried to tell you that… this is wrong because…our first speaker Bob has told
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Handphone also known as mobile phone or cell phone or smart phone‚ and is an electronic device used for mobile telecommunications (mobile telephony‚ text messaging or data transmission) over a cellular network of specialized base stations known as cell sites. Martin Cooper invented the handphone. He is a Motorola researcher and executive. Martin made the first call on a handheld mobile phone on April 3‚ 1973. Cells for handphone base stations were invented in 1947 by Bell Labs engineers. Handphones
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In regard to dahi‚ several factors make it a good carrier for probiotics. Dahi possesses a positive health image‚ has a long history of safe use and is liked by people belonging to all age groups and in different regions. Hence‚ administration of probiotic organisms becomes easy through this product. Moreover‚ the technological reasons also exist for the use of dairy products as carriers for probiotics. The technologies involved in the making of dahi like fermented products are optimized to some
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Why we advertise our products If we want our products to be well-known we should advertise them. Advertisements play an important role in the modern economy. They are useful to both consumers and producers. They help the consumers by giving them information about various products available on the market. Many readers appreciate advertising because it lets the vendor speak directly to the consumer about the product. Where we can see advertisements We find advertisements everywhere. Most of the
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