On-line education
With the fast development of modern technology such as computer and Internet, our life has been, and is being and will continue to be greatly and beneficially changed. For example, with the help of today’s internet web service, on-line education has come into being. One study shows that about 70 percent of the nation’s 4,000 two and four-year colleges and universities in the United States offers online courses today compared with 48 percent in 1998. As a alternative way of education, Online course has its benefits in two aspects. On one hand, online education provides an opportunity of continuing education for those working age who want to change their career or have a new interest. On the other hand, it inherently encourages every student especially those shy and intimidated to be more assertive in online classroom.
Radio and television:
Radio and television were major agents of social change in the 20th century, opening windows to other lives, to remote areas of the world, and to history in the making. From the wireless telegraph to today's advanced satellite systems, engineers have developed remarkable technologies that inform and entertain millions every day.
Space program:
From early test rockets to sophisticated satellites, the human expansion into space is perhaps the most amazing engineering feat of the 20th century. The development of spacecraft has thrilled the world, expanded our knowledge base, and improved our capabilities. Thousands of useful products and services have resulted from the space program, including medical devices, improved weather forecasting, and wireless communications.
Atom energy:
The harnessing of the atom changed the nature of war forever and astounded the world with its awesome power. Nuclear technologies also gave us a new source of electric power and new capabilities in medical research and diagnostic techniques. Though controversial, the engineering achievements related to nuclear technologies remain among the most important of the 20th century.
Laser and Fiber Optics:
Pulses of light from lasers are used in industrial tools, surgical devices, satellites, and other products. In communications, highly pure glass fibers now provide the infrastructure to carry information via laser-produced light - a revolutionary technical achievement. Today, a single fiber-optic cable can transmit tens of millions of phone calls, data files, and video images.
Internet:
Initially a tool to link research center computers, the Internet has become a vital instrument of social change. Created via a series of engineering innovations, the Internet is changing business practices, educational pursuits, and personal communications. By providing global access to news, commerce, and vast stores of information, the Internet brings us together and adds convenience and efficiency to our lives.
Household appliances:
Household appliances dramatically changed the 20th century lifestyle by eliminating much of the labor of everyday tasks. Engineering innovation produced a wide variety of devices, including electric ranges, vacuum cleaners, dishwashers, and dryers. These and other products give us more free time, enable more people to work outside the home, and contribute significantly to our economy.
Health technology:
Advances in 20th century medical technology have been astounding. Armed with only a few instruments in 1900, medical professionals now have an arsenal of diagnostic and treatment equipment at their disposal. Artificial organs, replacement joints, imaging technologies, and biomaterials are but a few of the engineered products that improve the quality of life for millions.
Computer:
The computer is a defining symbol of 20th century technology - a tool that has transformed businesses and lives around the world, increased productivity, and opened access to vast amounts of knowledge. Computers relieved the drudgery of simple tasks, and brought new capabilities to complex ones. Engineering ingenuity fueled this revolution, and continues to make computers faster, more powerful, and more affordable.
China’s Space Project
China has always said it is interested in peaceful uses of space, but security is also an important consideration. Key Chinese space officials say a vigorous space program keeps China from being bullied by other advanced space-faring nations.
Whatever the price, the spending comes at a time when China's government must make some tough financial choices. Experts say between 40 and 100 million people fall below China's poverty line - between four and 10 percent of its population. The nation's banks are groaning under the weight of bad loans, and many state-owned enterprises are 4)collapsing, throwing tens of millions of people out of work.
Automobile:
The automobile may be the ultimate symbol of personal freedom. It's also the world's major transporter of people and goods, and a strong source of economic growth and stability. From early Tin Lizzies to today's sleek sedans, the automobile is a showcase of 20th century engineering ingenuity, with countless innovations made in design, production, and safety.
A Justification for the Inclusion of the Arts in the Educational Curriculum
With the educational curriculum suffering from overcrowding, along with the recent "back to basics" movement, the arts programs in many schools have suffered considerably. If the arts are to avoid the impending "knife," a strong justification for their inclusion is required.
Watt 瓦特
Steam engine 蒸汽机
Boiled water
Steam lifts the cover of pot
#偶然发现，或从小的兴趣对成功的影响
Newton
Apple
The Law of Gravity 万有引力
If I have been able to see further, it was only because I stood on the shoulders of giants.
#apple的故事据说是个玩笑，就算是真的，也不是偶然，必须有相应的研究。当然也可以赞成其是偶然。可用于科学发明多是偶然那道issue
Penicillin 盘尼西林
Bacterial growth was inhibited by a contaminant blue-green mould
#偶然发现
Have technological innovation of the last century failed to bring about true progress for humanity, as the statement contends? Although I agree that technology cannot ultimately prevent us from harming one another, the statement fails to account for the significant positive impact that…have had on the quality of life—at least in the developed word. |
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