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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two are not of the same meaning. The original meaning of democracy is the rule by the poor or by the rabble. Aristotle had a clear argument stating that a rich majority would not be able to govern fairly (Arblater‚ 2002). This essay aims to identify advantages of modern democracy-based governments‚ such as equality for men and women‚ free press and media and totalitarianism as well as provide criticism in terms of the two systems. Democracy has become the subject of various debates‚ with the supporters
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GENERATORS| AC & DC Gather secondary information to discuss the advantages and disadvantages of AC and DC generators and relate these to their use. AC generators Advantages The slip rings of an AC generator have a continuous surface that allows the brushes to remain in contact with the ring’s surface. Thus the brushes in an AC generator do not wear out as fast as in a DC generator as they do not create an electric short circuit every half-turn. Therefore they required less maintenance and
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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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worldwide. It is allowing access to technology in developing countries. It promotes world peace. It has benefited women and children’s rights. It raises life expectancy. Advantages of Globalization Globalization has several advantages on the economic‚ cultural‚ technological‚ social and some other fronts Advantages of Globalization Goods and people are transported with more easiness and speed the possibility of war between the developed countries decreases free trade between countries
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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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Advantages and Disadvantages of Robot Technology Many type of robots that have been created and developed by the engineers to help human managing and assisting human in daily tasks. Robots are simply machines that have the ability to perform specific tasks and typically controlled by a computer or collection of computers. The robot can only perform those tasks for which they have been programmed. Main advantage of the robot technology is the increasing in productivity‚ safety‚ efficiency
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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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move away work from their private lives because when they finish their job and get home‚ most of the times‚ they continue working‚ they never disconnect! In conclusion‚ I would say that we have to learn how to manage computers‚ we have to take advantage of the facilities that they provide us‚ avoiding becoming their slaves‚ which means being able to live without them‚ not being dependents.
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Advantages and Disadvantages of Cell / Mobile Phones Brief History: Joseph Henry Enenbach will be remembered as a pioneer in mobile telephone technology that led to the creation of the cellular telephone. He died on 26th February‚ 1994 at the age of 70. In Pakistan‚ even though cellular phones or commonly known as mobile phones have been around since the late 1980s‚ they became very popular in the late 1990s when they turned to be more affordable and cost-effective to the common people
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