1The development of atomic physics theory is that mankind has mastered the technology of nuclear energy, but it also brought about the nuclear disasters of Hiroshima and Nagasaki, which brought mankind fifty years of "horrible peace", and for the first time, mankind had the ability to destroy itself. There have also been numerous nuclear accidents, most notably the Chernobyl disaster in the Soviet Union (please search the internet for specific data). The development of chemistry has given us unprecedented ability to modify nature, but our gunpowder and explosives have also harmed tens of millions of our fellow human beings. Our chemical synthesis technology has enabled us to create things that did not exist in nature, but now we are also plagued by white trash, poisoned by chemical pollution, and why so many children in our country are now suffering from leukemia is due to the use of chemical binders in home renovation, as well as ozone-destroying Freon. The development of oil exploration technology is the pace of human progress greatly accelerated we have been able to fly faster than the speed of sound, but this also brought too many wars and too much turmoil, but also make the earth began to cold fever. The development of biotechnology has given us the power to create life, which was previously monopolized by God, but it has also brought about ethical disorders. In short, the progress of science has always been accompanied by the danger of corresponding drawbacks, and today we must face up to these negative impacts or we may end up destroying the human race in our own hands.
2Personal safety is becoming more and more insecure. Now there are tens of thousands of crimes occurring on average every day. Most of these crimes are committed with the latest technology. Gun crime, in particular, has become a major concern for the general public. As we have seen in World War II, with the advancement of technology, wars now cause far more damage and loss than ever before. It may even lead to the end of the human race.
3The quality of human body is not as good as before. With the development of science and technology, gas cars, trains, airplanes and other means of transportation to make the human daily life has changed significantly, human beings are no longer always rely on their own legs, and therefore the physical quality of human beings and the previous compared to the physical quality of human beings has been incomparable. In the past, Xiang Yu's "power to pull mountains and rivers to cover the Ruoxi" is no longer possible in today's society. And this situation continues to develop is likely to make the human limbs atrophy, so that human beings appear a new form.
4 A variety of emerging germs continue to appear, many of which have far exceeded the destructive power of the previous germs. This is due to the rapid development of medical technology to accelerate the mutation of viruses. So much so, that technology is no longer able to keep up with the speed of virus mutation. Perhaps one day the human race will be destroyed by a major plague.
5 people's pace of life and improve the standard of living, the amount of plastic is increasing day by day. 1996, China's plastic packaging usage amounted to 2.43 million tons, an average annual growth rate of more than 20%, especially in the city, the main transportation routes, tourist attractions in the garbage in the plastic waste is increasing rapidly. According to the survey, the annual output of domestic garbage in Beijing has reached 3 million tons, of which waste plastics accounted for about 3%, with an annual growth rate of 48%. Coastal areas of the city's garbage in the plastic component is higher, up to 8-10%. These waste
Plastic in the proportion of garbage if calculated by volume, has reached more than one-third, and greatly increased the difficulty and cost of garbage disposal. Due to the waste plastic hundreds of years are difficult to degrade, if discarded in the natural environment, will give mosquitoes, flies and bacteria to provide a breeding ground for survival; if buried in the ground, it is easy to contaminate the groundwater, impede the growth of plant roots, destroy the quality of the soil, affecting the crop harvest; if incineration with fire, will produce a variety of toxic gases. "White pollution" has become a major environmental hazard in our society, seriously hindering the sustainable development of our economy and environment.
6The development of science and technology is to destroy the premise, to constantly summarize the basis. So his development and further deepening will certainly bring a certain degree of negative impact on the environment. In the long view of history, this destruction will be more serious with the development of science and technology!
7Today's society, automobiles are everywhere, not only on the human body and mind to cause great harm to the atmosphere has also caused pollution. All creatures in the world have been victimized to some extent by this "technological product", and it is selfish of human beings to disregard the safety of other creatures on earth for their own convenience. To take a step back, automobiles are also very harmful to human beings. Freon in air-conditioners and refrigerators is also destroying our precious atmosphere. The so-called high-tech products have made the world dirty and dead, and the free earth has been swallowed up a little bit by human beings, the free sky has been shrunk a little bit by human beings, and the free sea has been encroached upon a little bit by human beings.
8At present, with the rapid development of biotechnology, the issue of biosafety has become a big proposition that affects the whole country, the whole world politics, economy, security and peace. In recent years, especially after the "anthrax infection" in the United States, biosafety has attracted much attention both at home and abroad, and biosafety terminology is often found in documents of governmental or nongovernmental organizations, and in all kinds of media.The global epidemic of SARS will undoubtedly make countries all over the world pay more attention to biosafety and take it as an integral part of national security. component of national security.
9 Microbiological and biomedical laboratories are special laboratories compared to other physical and chemical laboratories or other types of laboratories, and everyone who works in them, as well as the surrounding environment with which they come into contact, is at high risk of contracting infectious diseases or health effects. Negligence and accidents in the management of microbiological laboratories can lead not only to infections among laboratory workers, but also to environmental contamination and large-scale population infections. Accidents of accidental infection in laboratories at home and abroad are not uncommon, and in serious cases, thousands of laboratory animals have to be slaughtered, even leading to the death of laboratory staff.
10When people develop and utilize biotechnology, there is a possibility of unexpected safety problems. As is the current widespread concern about the hazards posed to biodiversity by the environmental release of various types of genetically modified living organisms. In addition, genetically engineered drugs and vaccines, genetically modified foods, and gene therapy may have similar problems. Misuse of biotechnology and unethical application of biotechnology may also pose significant safety risks. The research on somatic cell cloning of human beings is a prominent example.
11Like any industrial product we use, air conditioning is bound to put a certain burden on our environment. A few years ago, the discussion of the impact of air conditioning on nature centered on the destruction of the earth's ozone layer by refrigerants, but over the years, thanks to the development of refrigerant renewal trips, this is no longer a major factor. The future impact of air conditioning on nature is still reflected in the area of energy consumption, which already accounts for a large share of our total energy consumption in life and industry. Energy consumption and the release of large amounts of heat to the atmosphere, to our natural environment has caused a great burden, which is the major problem we have to solve for a long time.
Li Da
Human survival, 200,000 years ago compared with 100,000 years ago, there will not be too much change; 3,000 years ago compared with 2,000 years ago, there will not be too much change; 600 years ago compared with 500 years ago, there will not be too much change. However, present-day people and ancient people have in fact long been different from what they were in the past, and even now, compared with 100 years ago, they are completely different. What drives the development of human history? What started mankind on a new way of being?
I say, this is science and technology, is the development of science and technology to promote the process of human beings, is the development of science and technology to make human beings have this new and beautiful life. Throughout the ages, which dynasty and which generation did not attach importance to the development of science and technology? Looking back, look at the four great inventions, unique; look at the astronomical calendar, marveled at; look at the Zhaozhou Arch Bridge, the design is exquisite; peep "Materia Medica", the Oriental canon; look at the value of pi, seven decimal; look at the Silk Road, the development of the economy; end of the blue and white porcelain, famous overseas. Scientific and technological development is the road to a strong country, scientific and technological development is the first driving force for the progress of the Chinese nation, no science, where we are today's happy life? Without science and technology, where we have a comfortable material life and spiritual enjoyment? Without the progress of science and technology, how can we eat the hybrid two? How can we wear cotton clothes, how can we live in high-rise buildings?
Ask, the development of science and technology benefits or disadvantages? There is no doubt, of course, is the benefit! What is the explanation? There is no need to explain! Chinese civilization eight thousand years of history and civilization is ironclad, history is changing every moment, technology is developing every moment. Human beings have learned to utilize or cook food from the primitive life of drinking blood and hair, from relying on nature to breeding and raising, from unarmed iron to metallurgy and stone smelting, isn't this all progress, isn't this all development? If the disadvantages outweigh the advantages, then why do human beings still coincidentally choose progress? Only progress can make tomorrow better!
A person who does not make progress is pathetic, a country that does not make progress is downtrodden, a world that does not make progress is dark. Only in continuous progress can human life be sublimated. Man is small, man is fragile, he does not have a huge body, no ox-like strength, no turtle's hard shell. But God gave mankind a smart brain, a pair of hard-working hands, mankind did not sit back and enjoy the success, but chose to continue to progress, can only stand in the top of the food chain today.
Let's compare today's life with that of 100,000 years ago, we are supreme; compare today with that of thousands of years ago, we are condescending; compare today with that of hundreds of years ago, we are happy and comfortable; compare today with that of tomorrow, the future is bright and beautiful. Thousands of years, from the horse-drawn carriage into cars, trains, airplanes; from kerosene lamps into incandescent lamps, neon lamps, energy-saving lamps; from the ends of the earth into the near at hand, video chatting, a little bit of the mouse to know the world.
We are happy, we are lucky, we caught up with a high-speed development of science and technology, an era full of high-tech, which is not only our ancestors in the evolution of the choice of the development, choice of progress, but also includes all the unremitting efforts, hard work, how many of us today's day when the hard-working scientists with the wisdom of the even life in exchange.
Because of Faraday, we live around the full of a variety of electrical appliances; because of Darwin, because Mendel, we can better understand themselves, cognitively; because of the magpie, because of Hua Tuo, because Li Shizhen, our life can be guaranteed.
Aren't they the ones who gave us everything around us in exchange? Life is so comfortable, life is so cozy, life is so wonderful, our average life expectancy is 30 years higher than in ancient times, we don't even have to leave our homes to visit our friends and relatives, isn't it all because of the benefits brought to us by the development of science and technology?
So, science and technology change history, we explore the development of science and technology benefits or disadvantages is no need to question, because it is the benefits! Lei big! Profit big! You say that the development of science and technology has brought about atmospheric pollution, you say that the development of science and technology has produced white trash, you say that the development of science and technology has formed a warming of the temperature ...... All things cannot be perfect, the brighter the place behind the shadows the darker, but on the basis of these you conclude that the development of science and technology has done more harm than good? "The world is different things are different" times are different, the problems encountered are different, and then the air pollution, the provinces and cities have launched a preventive plan; white trash, unified treatment; automobile exhaust caused by warming scientists have also developed a solar-powered cars. Look at now, solar water heaters, solar air conditioning, solar batteries ...... environmentally friendly and economical solar energy has gradually entered thousands of households, this is not technology in development?
While there are drawbacks, but compared to the benefit of mankind, environmental protection homes of the concept of scientific and technological development, irrelevant, as long as there are drawbacks, scientists will likewise find a way to solve, we can not choke on food, the pace of scientific and technological development will not stop for a moment. Scientific and technological development, there is no excuse, is the benefit of the big, the only answer to this question! Just because technology has been progressing, science has been developing, cunning sophistry, generalized words, unreasonable nonsense can not change this truth. If you say that technological advances do more harm than good, ask, can you go a week without coming to class in a car, without using a neutral pen, without using a ballpoint pen, without using a fountain pen? Can you go a week without watching TV, listening to the news, reading a newspaper, reading a book, or surfing the Internet? Can you go a week without eating the hybrid rice you developed? Not eat pasta? No drinks? Can't can't, you can't and can't be able to, because technology is already closely related to you, already inseparable from you! In ask, if you write a letter to the President, said that the proposal to stop all scientific research activities, everyone is to give you flowers, or that board special pat you?
Technology changes history, good, without the development of science and technology, our lives are unimaginable, our days are dark, is the development of science and technology to save us, is science to save us from the age of fire and water. We should respect him with a heart of reverence, how can we say that the development of science and technology is full of disadvantages?
Technology changes history, knowledge changes destiny. We have entered the 21st century, into an era full of high-tech. Science has changed our lives, science has changed our destiny. "Knowledge is power", our Chinese people **** and the country, 1.3 billion people of the great country, why can the world in front of the chest up? Because our technology is constantly developing! Our science and technology in constant progress!
The benefits of technological development outweigh the disadvantages, which is an unchanging theme!