Science and invention have led us to a more convenient daily life‚ but are they always good? We should look at both sides of the coin. So I am writing to discuss the pros and cons of science and invention. First of all‚ with science and invention‚ there will be less work for human to do. Also‚ it will be more effective in doing some complicated work. This makes humans’ lives more enjoyable. Vacuum cleaner is a good example‚ it can remove dirt and dust from the floor‚ and it is very helpful for
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macaroni and cheese made with parmesan. The establishment of the Polygraph was one of his most popular involvements and it copied letters by emulating the motion of the writer’s hand. It was initially produced by Hawkins and then sold to
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The Problems Caused by the Modern Inventions As one famous commercial says‚ “Technology always comes from humanity.” In this modern world‚ we have been counting on technology. It deprives us of our time and energy‚ although we can no longer live without it. Since it has made a huge impact on our lives‚ some negative effects caused by the technology are not irrelevant to us. Thus‚ as I have observed‚ the problems caused by the modern inventions are the distancing among people‚ the limitation of
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The Airplane: Public Reaction Wilbur and Orville Wright invented the world’s first airplane at the turn of the twentieth century. Mary Bellis described the years following the brothers’ discovery‚ during which various engineers furthered their invention to where it stands today‚ capable of intercontinental travel for commercial‚ transportation and militaristic use. The airplane’s introduction and advancement was first met with apathy‚ then with both praise and criticism from people of varying social
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W \M.vO Margaret Mead Warfare: An Invention — Not a Biological Necessity (1940) IN 1969‚ TIME MAGAZINE named anthropologist Margaret Mead (1901-1978) the "Mother of the World." This title stemmed in part from Mead’s work with young girls in various cultures around the world‚ but it also recognized the moral and intellectual status that she earned during her fifty-year career as the world’s most famous and respected anthropologist. Mead was born in Philadelphia in 1901. She earned a
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The compass has served as a navigational aid to many tourists‚ travelers‚ and numerous explorers. Though the compass has served well in navigation‚ it has affected and improved mankind greatly. In China‚ building was refined in many ways by the compass. It has enabled many to find positions‚ direction or route. No one knows when‚ where‚ or by whom the compass was invented (dEstaing and Young 153). We do know though‚ that there were numerous inventors of the compass. The first compass was invented
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A light-emitting diode (LED) is a semiconductor light source.[6] LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Appearing as practical electronic components in 1962‚[7] early LEDs emitted low-intensity red light‚ but modern versions are available across the visible‚ ultraviolet‚ and infrared wavelengths‚ with very high brightness. When a light-emitting diode is switched on‚ electrons are able to recombine with holes within the device‚ releasing energy
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The Internet: A Revolutionary Modern Invention Just 21 years ago‚ the world would have never imagined the profound impact the Internet would have on our daily lives – from sending and receiving electronic mail to regularly banking and shopping online. According to The History Channel website‚ unlike the inventions of the light bulb or the telephone‚ the Internet has no single “inventor.” Rather‚ it has evolved over time. The Internet actually began in the United States more than 50 years
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In 1873 blue jeans were invented by a well known man named Levi Strauss. Blue jeans became popular for farmers and workers‚ because they were tougher and less likely to rip. Many Americans wore jeans for comfort‚ too. A 24-year-old German immigrant named Levi Strauss departed from New York with little supply of dry materials. He also had the intention of opening an extension of his brother’s New York business that he was bringing to San Francisco. Strauss did not want to be a prospector‚ so he decided
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played important roles for future humans. As the world’s earliest civilization‚ Ancient Mesopotamia’s innovations continue to affect the world. It made vital contributions in fields like science‚ mathematics and astronomy; they even developed a writing system. The early Mesopotamian civilization was known for inventing the first 30-day lunar calendar. Using the phases of the Moon‚ they counted 12 lunar months as a year. Moreover‚ Mesopotamians first observed a seven-day week. The invention of the
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