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1、Wang M F 2014-4-8Science and Science and Technology Are Technology Are Changing Our LifeChanging Our Life2021/6/71 There can be no doubt that the twentieth century is one of the most remarkable in human history for its previously unparalleled rate of technological advances and scientific discoveries
2、, a rate that continues to this day. In fact, there were so many new technologies invented and discoveries made in the last century that its difficult to pare the list down to just the ten. However, now we look back to those ten innovations or technologies that have had the greatest influence on hum
3、anityboth positively and the negatively.2021/6/72 Nuclear power was to the twentieth century what steam power had been to the nineteenth: a game changer. Suddenly humanity had a power source that didnt pollute, was efficient and practically unlimited, and so had the potential to change the planet ov
4、ernight. Unfortunately, it was atwo-edged swordin that this same energy source could be used to create the most destructive weapons in history, threatening human survival with its very presence. However, it is hard to deny the overall positive impact nuclear power has had. The fear of mutually assur
5、ed destruction probably prevented the world from experiencing a third world war.10. Nuclear Power2021/6/7310. Nuclear Power2021/6/7410. Nuclear Power2021/6/7510. Nuclear Power2021/6/76 Its difficult to imagine our world today without computers. Of course, they have been around since World War Two, b
6、ut they wereclunky, massively expensive thingsthat had all the calculating power of a brick. When Steve Wozniak and Stephen Jobs introduced the Apple in 1976, however, it changed everything and the rest is, as they say, history.9. The Personal Computer2021/6/77 Just as the locomotive made the world
7、a smaller place in thenineteenth century, the airplane did the same for us in the twentieth century, shrinking our planet to the point that a person could fly anywhere in the world in a matter of hours.8. The Airplane2021/6/788. The Airplane2021/6/79 Though under development in Europe during the nin
8、eteenth century, the automobile didnt really become a practical and reliable source of transportation until the twentieth century. 2013, Chinas automobile production and sales both more than 20 million, has been reelected for five consecutive years in the world. The number of private cars in China r
9、eached one hundred million.7. The Automobile2021/6/710 In the twentieth century, rockets became bigger and more powerful. Most importantly, they became controllable, which suddenly made them useful both as weapons of war and, even more vitally, as our means of accessing outer space. Without the rock
10、et, it is safe to say we would not only have never gone to the moon or visited every planet in our solar system. Rockets also place satellites into orbit around our planet, so without them we also wouldnt be able to use GPS, predict the weather, make international calls or, for the most part, even u
11、se our cell phones much of the time.6. Rocketry2021/6/7112021/6/7125. Telephone The telephone, wrote Alexander Graham Bell in an 1877 prospectus drumming up support for his new invention, may be briefly described as an electrical contrivance for reproducing in distant places the tones and articulati
12、ons of a speakers voice. As for connecting one such contrivance to another, he suggested possibilities that admittedly sounded utopian: It is conceivable that cables of telephone wires could be laid underground, or suspended overhead, communicating by branch wires with private dwellings, country hou
13、ses, shops, manufactories, etc.2021/6/7135. Telephone2021/6/714 Until Alexander Fleming discovered penicillin in 1928, almost any little bug that someone picked up was potentially fatal. Once penicillinand later a whole range of other antibioticscame on the scene, however, death due tobacterial infe
14、ctionbecame rare, resulting in a greatly reduced mortality rate and much longer life-span. It also rendered many scourges of the pastfrom small pox and typhoid to gonorrhea and syphilisobsolete or, at least in the case of venereal disease, something easily treatable. WHO Coordinator for Epidemiology
15、 and Burden of Disease Colin Mathers said: The life expectancy worldwide has increased from 64 years in 1990 to 70 years in 2011. The data provided in the report show that Japan, Switzerland and San Marino highest average life expectancy reached 83 years of age4. Medical advancement2021/6/715 I know
16、 it destroys brain cells and renders people emotionally and psychologically damaged, but really, where would we be without the boob tube? It is societys baby-sitter, news source, teacher, entertainer, and story-teller. Worse, most of us would have no idea what to do with our time without it, which i
17、s probably the saddest commentary of all.3. Television2021/6/716 While the airplane shrank our planet to the point that one could fly from New York to London in six hours,the internetmade it possible to be there in a few seconds. It allows truth to make it into and out of repressive countries, it fo
18、ments revolutions, and spreads lies at the speed of light. It also gives anyone the ability to buy and sell almost anything imaginable, find and torment old school mates, watch the latest you-tube videos, and even find their perfect life partner, all for a few bucks a month. Oh, and you can also get
19、 useful information off it if you dont mind scrolling through 15,000 hits to find out just how long snails really live.2. The Internet2021/6/717 Few people today can appreciate the impact the advent ofradiohad on the twentieth century. Not only did it suddenly make it possible for a person to be hea
20、rd from hundreds or even thousands of miles away without the use of a wire but it was the center of family life through the end of the Second World War and into the doldrums of the fifties, when it was gradually replaced by that new-fangled contraption, the television.1. Radio2021/6/718Comradesandfriends,tobuildaninnovation-orientedcountry,torealizethegreatrejuvenationoftheChinesenation,allcolleaguesneedtoworktogetherandcontinueourefforts!2021/6/719部分资料从网络收集整理而来，供大家参考，感谢您的关注！
