E-mail has been widely used since its invention for its convenience, efficiency, and high speed. However, it is wise to remember how easily this wonderful technology can be misused, sometimes unintentionally, but can result in serious consequences.

    Now let's look at the case of the Illinois man who left the snow-filled streets of Chicago for a vacation in Florida. His wife was on a business trip and was planning to meet him there the next day. When he reached his hotel , he decided to send his wife a quick E-mail. Unable to find the note with his wife's E-mail address, he did his best to type from his memory. Unfortunately, he missed one letter and his E-mail was directed to an elderly lady whose husband had passed away (去世) only the day before. When the sad widow checked her E-mail, she took one look at the screen, let out a sharp cry, and fell to the floor in a dead faint (昏迷 ). At the sound , her family rushed into the room and saw this note on the screen:

    MY DEAREST WIFE： JUST GOT CHECKED IN. EVERYTHING PREPARED FOR YOUR ARRIVAL TOMORROW.

    P.S. SURE IS HOT DOWN HERE

    Four people in England back in 1953, stared at Photo 51,It wasn't much—a picture showing a black X. But three of these people won the Nobel Prize for figuring out what the photo really showed –the shape of DNA The discovery brought fame and fortune to scientists James Watson, Francis Crick, and Maurice Wilkins. The fourth, the one who actually made the picture, was left out.

    Her name was Rosalind Franklin.” She should have been up there,” says historian（历史学家） Mary Bowden.” If her photos hadn't been there, the others couldn't have come up with the structure.” One reason Franklin was missing was that she had died of cancer four years before the Nobel decision. But now scholars（学者）doubt that Franklin was not only robbed of her life by disease but robbed of credit by her competitors

    At Cambridge University in the 1950s, Watson and Click tried to make models by cutting up shapes of DNA's parts and then putting them together. In the meantime, at King's College in London, Franklin and Wilkins shone X-rays at the molecule(分子). The rays produced patterns reflection the shape.

    But Wilkins and Franklin's relationship was a lot rockier than the celebrated teamwork of Watson and Crick, Wilkins thought Franklin was hired to be his assistant .But the college actually employed her to take over the DNA project.

    What she did was produce X-ray pictures that told Watson and Crick that one of their early models was inside out. And she was not shy about saying so. That angered Watson, who attacked her in return, “Mere inspection suggested that she would not easily bend. Clearly she had to to go or be put in her place.”

    As Franklin's competitors, Wilkins, Watson  and Crick had much to gain by cutting her out of the little group of researchers, says historian Pnina Abir-Am. In 1962 at the Nobel Prize awarding ceremony, Wilkins thanked 13 colleagues by name before he mentioned Franklin, Watson wrote his book laughing at her. Crick wrote in 1974 that  “Franklin was only two steps away  from the solution.”

    No, Franklin was the solution. “She contributed more than any other player to solving the structure of DNA . She must be considered a co-discoverer,” Abir-Am says. This was backed up by Aaron Klug, who worked with Franklin and later won a Nobel Prize himself. Once described as the “Dark Lady of DNA”, Franklin is finally coming into the light.

    Introductory Chemistry was taught at Duke University for many years by professor Bonk. One year, two guys took the class and did pretty well on all the quizzes and mid terms. They each had a solid A. These two friends were so confident in going into the final that the weekend before finals week,despite the Chemistry final being on Monday,they decided to go to the University of Virginia to party with some friends.

    They had a great time there. However,with their hangovers(宿醉) and tiredness,they overslept all day Sunday and didn't make it back to Duke until early Monday morning. Rather than taking the final then,they found professor Bonk after the final and explained to him how they missed the final. They told him they went up to the University of Virginia for the weekend and had planned to come back in time to study,but they had a flat tire on the way back and didn't have a spare. So they were late getting back to campus.

    Bonk thought this over and agreed that they could take the final the following day. The two guys,happily and relieved,studied that night and went in the next day at the time that Bonk had told them. He placed them in separate rooms and handed each of them a test booklet. He told them to begin.

    They looked at the first problem which was something simple about solution(溶解).It was worth 5 points. "Cool," they thought,"this is going to be an easy final". They then turned the page. They were unprepared,however,for what they saw on it. The question contained only two words: (95 points) Which tire?

    A girl had to usually face adversity(逆境). One day, she couldn't help complaining to her father about her life and how things were so hard for her. She didn't know how she was going to make it and wanted to give up. She was tired of struggling. It seemed as one problem was solved a new one arose.

    Her father, a chef, took her to the kitchen. He filled three pots with water and placed each on a high fire. Soon the pots came to a boil. In one he placed carrots, in the second he placed eggs, and in the last he placed ground coffee beans. He let them into the water and boil, without saying a word.

    The daughter waited impatiently, wondering what he was doing. In about twenty minutes he turned off the burners. He made the carrots out and placed them in a bowl. He pulled the eggs out and placed them in another bowl. Then he poured the coffee out and placed it in a cup. Turning to her, he asked, "What do you see?" "Carrots, eggs and coffee," she replied.

    He brought her closer and asked her to feel the carrots. She did and noted that they were soft. He then asked her to take an egg and break it. After pulling off the shell, she observed the hard-boiled egg. Finally, he asked her to sip the coffee. She smiled, as she tasted its rich aroma(香味). She humbly asked, "What does it mean, Father?"

    He explained that each of them had faced the same hardship, boiling water, but each reacted differently. The carrot had been strong and hard. But after being subjected to the boiling water, it softened and became weak. The egg had been easily broken. Its thin outer shell had protected its liquid interior. But after going through the boiling water, its inside became hardened. The ground coffee beans were unique. After they were in the boiling water, they changed the water. "Which are you?" he asked his daughter. "When adversity knocks on your door, how do you respond? Are you a carrot, an egg, or a coffee bean?"

    How about you, my friend? Are you the carrot that seems hard, but with pain and adversity you move back and become soft and lose your strength? Are you the egg, which starts off with a flexible heart? Were you a liquid spirit, but after a breakup, a divorce, or a layoff have you become hardened and stiff? Your shell looks the same, but are you bitter and tough with a stiff heart? Or are you like the coffee bean? The bean changes the hot water, the thing that is bringing the pain. When the water gets the hottest, it just tastes better. If you are like the bean, when things are at their worst, you get better and make things better around you.

    Ask yourself how you handle adversity. Are you a carrot, an egg, or a coffee bean?

The Truth About the Environment

    For many environmentalists, the world seems to be getting worse. They have developed a hit-list of our main fears: that natural resources are running out, that the population is ever growing, leaving less and less to eat, that species are becoming disappeared in huge numbers, and that the planet's air and water are becoming ever more polluted.

    But a quick look at the facts shows a different picture. First, energy and other natural resources have become more abundant, not less so. Second, more food is now produced per head of the world's population than at any time in history. Fewer people are starving. Third, although species are indeed becoming disappeared, only about 0.7% of them are dying out in the next 50 years, not 25-50%, as has so often been predicted. And finally, most forms of environmental pollution either appear to have been best cured not by limiting economic growth, but by accelerating it.

    Yet public opinion surveys suggest that many people hold the belief that environmental standards are declining and four factors seem to cause this gap between what they know and what the reality is.

    One is the unbalanced budget for scientific research. Scientific funding goes mainly to areas with many problems. That may be wise policy, but it will also create an impression that many more potential problems exist than is the case.

    Secondly, environmental groups need to be noticed by the mass media. They also need to keep the money rolling in. Understandably, perhaps, they sometimes overstate their arguments. In 1997, for example, the World Wide Fund for Nature issued a press release entitled: „Two thirds of the world's forests lost forever'. The truth turns out to be nearer 20%.

    A third source of confusion is the attitude of the media. People are extremely more curious about bad news than good. Newspapers and broadcasters are there to provide what the public wants: That, however, can lead to significant misunderstanding. An example was that America came across EI Nino(厄尔尼诺) in 1997 and 1998. This climatic phenomenon was accused of breaking tourism, causing allergies, melting the ski-slopes, and causing 22 deaths. However, according to an article in the Bulletin of the American Meteorological Society, the damage was estimated at $4 billion but the benefits amounted to some $19 billion.

    The fourth factor is poor individual knowledge. People worry that the endless rise in the amount of things everyone throws away will cause the world to run out of places to dispose of waste. Yet, even if America's trash output continues to rise as it has done in the past, and even if the American population doubles by 2100, all the rubbish America produces through the entire 21st century will still take up only one 12,000th of the area of the entire United States.

    It is extremely important that we look at the facts if we want to make the best possible decisions for the future. It may be costly to be overly optimistic, but more costly still to be too pessimistic.

Civilization began with agriculture, and though humanity has changed significantly, agriculture remains very important. In certain countries, its significance is more apparent, but the reality is that every country in the world depends on agriculture for one thing or another.

It provides employment. Whether it's working as a farmer, a harvester, a technician for farm equipment or a scientist, there are plenty of jobs available in this field. In developing countries, agricultural jobs help reduce high rates of unemployment.

It's crucial to a country's development. Economic development is tied to a country's agricultural sector. When trade, national avenue, and employment are combined in a positive way, a country enjoys reduced poverty and boosted economic growth. Because strong agriculture results in benefits fairly quickly, focusing on it is one of the best ways to speed up development and improve a country's standing across the globe.

It drives innovation in technology. Because healthy agriculture is so essential to a country's well-being, it's been the setting of some of the most exciting innovations in technology. Through artificial intelligence, blockchain software, and more, scientists and farmers have been figuring out ways to increase crop productivity, use less water, and reduce negative impacts on the environment. For scientists and tech companies, agribusiness is one of the most fascinating and productive fields to work in.

It's the source of our food supply. Arguably, the most important aspect of agriculture is that it's the source of the world's food supply. No matter where or what you are eating, the ingredients in your meals come from somewhere. All roads lead to agriculture. In countries dealing with food insecurity and severe malnutrition, their agricultural sectors are suffering. When agriculture thrives(蓬勃发展), fewer people go hungry.

It can help heal the environment. Agriculture possesses the power to cause harm or heal. When farmers prioritize biodiversity on their land, it benefits the earth. Having more biodiversity results in healthier soil, better water conservation, and healthier pollinators(传粉者).

All in all, agriculture plays a critical role in the entire life of a given economy. Agriculture culture is the backbone of the economic system of a given country.