Dazha Crabs from Yangcheng Lake

    With the Mid-Autumn Festival coming, the time for crabs is around the corner! Dazha Crabs from Yangcheng Lake in China are believed to be the best freshwater crabs.

    “They are delicious, because the bottom of Yangcheng Lake is hard and the crabs grow strong by walking on such a hard surface,” said one sales manager in Suzhou.

    Li Lei, a crab lover from Beijing, said “It's very delicious! But there are too many fake Yangcheng Lake Dazha Crabs”.

    “Maybe the crabs from other regions can appear to be glistening green back, white belly after people wash them, but the golden fine hair on crab claws is still a point of pride and is exclusive to Dazha Crabs from Yangcheng Lake,” said the manager.

    The best time for enjoying them is during September and October of Chinese lunar calendar. “When the season for crabs arrives, the Dazha Crabs from Yangcheng Lake are flown to various cities so that people's appetites can be satisfied,” said the sales manager. “They are really expensive here, sometimes more than 320RMB/500g, 10% of my salary!” said Li Lei.

    Dazha Crabs are usually steamed or boiled for within 20 minutes before they come on the dinner table. They are often enjoyed with vinegar mixed with minced ginger to add flavor and get rid of the cold. People who are particular about how they eat crabs also need to have high-grade Shaoxing rice wine to warm their stomachs.

    There is much work required to eat crabs. So much shell!Most people use both hands and teeth while eating Dazha Crabs. “The eating way is not graceful or elegant,” said Huck. “However, some professionals of eating crabs can use tools to take all the meat out of the crab without damaging a single bite and the crab can be restored to its original shape if the empty shells are pieced together!” said Han Mei, another Dazha crab lover.

    Karen, one of my co-workers, complained about her apartment every day. One day I asked her why she didn't look for another apartment. It seemed like an easy solution to me. Karen's reply to this was, "I will look for another apartment when I come back from vacation."

    Sam hated his job. He had a love for photography and was currently taking a two-year course to obtain his certificate. Every night he complained about his work. I asked him why he didn't finish his course and start a small business doing photography on the weekends. His reply was, "If only I had more time to finish my course. When I finish my course I will start a business."

    Harry worked for a company that allowed early retirement. He had both the years of service and his age, which allowed him to retire, but at a reduced pension. He was having difficulty coping with all the changes that were being made in his work. I was worried about the stress of his job and the effects it was having on his health. "Why don't you retire, Harry? Do something that you have always wanted to do?" I asked. Harry's reply to my question was, "If only I was older then I would get my full pension." "But Harry, you have your house paid off. You have no bills, and the kids are grown up. You can sell your house and get a smaller one. It's really not worth your health, is it? Harry then said, "When the summer comes, maybe I will."

    Now a year later, Karen is still living in the apartment she hates! Sam is still complaining about his job! Harry is still working and his health is not what it used to be! These people had a lot of stress in their lives that they could have taken action to reduce. But all of them defeated themselves by thinking "if" or "when". Life is too short for "if's and when's". The next time you are in a stressful situation and you find yourself saying or thinking "if or when", remember the saying, "If and when were planted and nothing grew!" Change your thinking and take action so that you can reduce your stress right now.

    Back in 1969, it was the Apollo 11 crew who flew to the moon in a spaceship. When U.S. astronauts Neil Armstrong and Edwin “Buzz” Aldrin stepped foot on the moon, they were the first. Meanwhile, their fellow astronaut Michael Coilins circled the moon in their spaceship, named Columbia.

    When Armstrong and Aldrin were done with their walk，they returned to the command module, and back to Earth. That part of the spaceship is on view at the Smithsonian's Air and Space Museum in Washington, D.C. But, if you cannot get to Washington，soon you will be able to see Columbia on your computer or your smartphone.

    Digital scientists are scanning the inside of the spaceship. They are creating an online model, in three dimensions, or“3 D”. By looking at these photographs, you will be able to see outer space，the way the astronauts did. It will be like sitting in their seats.

    Want your very own Columbia spaceship? You will be able to print a 3D copy of Columbia. Experts say anyone can make a life-sized model. But they expect most people to make smaller models of the 320×400 cm(11'X 13')command module.

    Scientists are using special 3D technology to scan the inside. They use cameras on long arms to take the photographs. The thousands of photographs taken will be combined with 50 laser scans.

    What would it be like to sit inside Columbia and take a look around? All the images will be loaded into software that allows you to look around the module on a computer screen. The user will be able to see the Columbia both inside and out. The Smithsonian says that the 3D technology gives the user ways to see things they cannot see at the museum. And it will give information that even the museum curators(馆长)have not seen before.

    “With the Command Module, no one has been inside since it came into the collection,” says Adam Metallo. Smithsonian 3D imaging specialist. “Now the information we capture can give anyone in the world a view of what it looks like inside this incredible piece of history.”

    There's a song by the great Jamaican singer Bob Marley called So Much Trouble In The World. Marley understood that part of the reason why there are so many problems in the world is the lack of tolerance between people. The UN understands this too—that's why it made Nov 16 "International Day for Tolerance".

    But first of all, what is tolerance? French philosopher Voltaire (1694—1778) can give us some help. According to him, tolerance "is the consequence of humanity. We are all formed of frailty (脆弱) and error; let us pardon each other's folly—that is the first law of nature."

    Nobody's perfect. When we're tempted to criticize another person, we should perhaps remember our own imperfections first.

    Very often, people don't realize that they're intolerant. This is because intolerance has a lot to do with ignorance. For example, the UN's campaign is in part about the treatment of females by males. But often, the behavior of men toward women is intolerant because men don't put themselves in the shoes of women.

    It's worth thinking a little about the words "tolerance" and "intolerance". Are they the best words to describe the evils of which we're speaking here? To agree to be "tolerant" of someone isn't necessarily a very respectful thing. When someone is tolerated, it implies that there's something wrong with them.

    But it seems wrong that people should agree to "tolerate" people with black skin, for example. And should women think they have received the respect they are due when men agree to "tolerate" them?

    Still, what Voltaire said stands: We humans are not perfect and this weakness is something that we all share. That's the reason we should be tolerant.

    It's a little like generosity. We can give things to another person, and we can also give our forgiveness. Bob Marley understood this. In the song mentioned above, he advised: "Write your love on a rock so it stays for eternity; write your hate in the sand so the waves will wash it away."

    Research shows that some orchestral(管弦乐的) instruments are in a danger of dying out.YouGov research, asked by the Royal Philharmonic Orchestra (RPO) to find the most popular instruments among schoolchildren, has revealed the increasing popularity of the ukulele(尤克里里琴), with one in eight expressing a desire to learn, making it the highest ranked instrument behind the typical rock-band grouping of the guitar, piano, keyboards, drums and bass guitar.

    But younger generations' interest in"more complex instruments"is decreasing, with the three least popular being the French horn, the double bass and the trombone.

    James Williams, managing director of the RPO, believed the changes reflect the increasing pressure schools are under to provide music education, and went on to say that more needs to be done to interest secondary school students in the wider range of instruments. His concern was for the composition(构成) of future orchestras if the trend towards instruments like rock-band grouping were allowed to continue. But there may be yet another death, one that few would be quick to sorrow over：the recorder(竖笛).

    Cheap, convenient, easy to learn, and suitable for individual and group performances, the recorder was once the go-to instrument for children's early musical education.But in many schools it has been replaced by the ukulele, which, for teachers, offers many of the same benefits with none of the lasting damage to hearing. Plus, from a student's viewpoint: you can play Metallica on one.

    Not all hope is lost for the cream-colored, 10-pound Yamaha recorder with a long history, however. About 13% of girls and 4% boys surveyed by YouGov said they wanted to learn the recorder.Surprisingly high! Unlikely as it may be, these children's interest in the recorder must be encouraged.

A rainy day can be a chance to recharge. While you relax on the sofa with a movie, the raindrops falling on your windows might one day provide the power for your TV. This is the idea behind an invention that harvests energy from water. 

The technology is based on the triboelectric (摩擦电的) effect. An engineer at the University of Hawaii, David Ma knew that it was possible to generate electricity by rubbing two things together. So, he thought, "Why don't we use water?"

A drop of water sliding across a surface coated with two different materials would generate enough friction(摩擦) to create an electrical charge. By placing metal wires that the drop of water touched as it moved, it should be possible to harvest electricity, he reasoned. 

It worked. In fact, the researchers lit up 15 LED bulbs with a single moving water drop. 

This is not the first time that scientists have got electricity from water-generated friction. Earlier experiments, though, harvested the charge produced in a surface by a sliding drop of water. There, the surface had acted as an electrode(电极). This is different. The energy of friction is being harvested from the water itself. 

"The technology could someday power phones, sensors or other small electronics," says Christopher Oshman, an engineer at the Colorado School of Mines. "This work is a step towards harvesting the energy of moving objects all around us, including ourselves, to power the electronic devices we use every day," he says. 

"Ma has shown that the technology can work in a lab," Oshman says. Next, the Colorado researcher would like to see it tried on a larger scale, such as on an umbrella.