For years I wanted a flower garden. But then we had Matthew. And Marvin. And the twins, Alisa and Alan. And then Helen. I was too busy raising them to grow a garden.

Money was limited, as well as time. Often when my children were little, one of them would want something that cost too much, and I'd have to say, “Do you see a money tree outside? Money doesn't grow on trees, you know.”

Finally, all five got through high school and college and were off on their own. I started thinking again about having a garden. I wasn't sure, though, I mean, gardens do cost money.

Then, one spring morning, on Mother's Day, I was working in my kitchen. Suddenly, I realized that cars were tooting their horns as they drove by. I looked out of the window and there was a new tree, planted right in my yard. I thought it must be a weeping willow, because I saw things blowing around on all its branches.

    There was a money tree in my yard !It was true! There were dollar bills, one hundred of them, taped all over that tree. There was also a note attached: “IOU eight hours of digging time. Love. Marvin.”

    Marvin kept his promise, too. He dug up a nice ten-by-fifteen foot bed for me. And my other children bought me tools, ornaments, a trellis, a sunflower stepping stone and gardening books.

That was three years ago. My garden's now very pretty, just like I wanted. When I go out and weed or tend my flowers, I don't seem to miss my children as much as I once did. It feels like they are right there with me. I think about what my children did for me, and I get tears in my eyes every time.

I'm still not sure that money grows on trees. But I know love does!

    A new collection of photos brings an unsuccessful Antarctic voyage back to life. Frank Hurley's pictures would be outstanding — undoubtedly first-rate photo-journalism — if they had been made last week. In fact, they were shot from 1914 through 1916, most of them after a disastrous ship wreck (海滩) by a cameraman who had no reasonable expectation of survival Many of the images were stored in an ice chest under freezing water, in the damaged wooden ship.

    The ship was the Endurance a small tight Norwegian-built three-master that was intended to take Sir Ermest Shackleton and a small crew of seamen and scientists, 27 men in all, to the southernmost shore of Antarctica's Weddell Sm. From that point Shackleton wanted to force a passage by dog sled across the continent. The journey was intended to achieve more than what Captain Robert Falcon Scott had done. Captain Scott had reached the South Pole early in 1912 but had died with his four companions on the march back.

    As writer Caroline Alexander makes clear in her forceful and well-researched story The Endurance、adventuring was then a thoroughly commercial effort Scott's last journey, completed as he lay in a tent dying of cold and hunger, caught the world's imagination, and a film made in his honor drew crowds Shackleton, a onetime British merchant-navy officer who had got to within 100 miles of the South Pole in 1908,started a business before his 1914 voyage to make money from movie and still photography. Frank Hurley，a confident and gifted Australian photographer who knew the Antarctic, was hired to make the images most of which have never before been published.

    Summer time is a great opportunity for kids to learn how to work and earn a little bit of spending money. If your child needs a summer job, here are a few options to consider:

Lemonade/Cookie Stand

    Benefits

    Creates a concept of running a business: Your child will be his own boss, set his own price, and run the show. It's a great introduction to running his own business.

    Limited Start-Up Costs: The things used to make lemonade are cheap, so your child should be able to get back his investment with a handful of sales.

    What Kids Learn About Money: Your child will learn a very valuable lesson about pricing. The price of his lemonade will decide how much he can sell, if he will recover his investment and the amount of profit.

    Yard Work

    Benefits:

    Repeated Customers: If a homeowner needs help raking (耙地) this year, he'll probably want help again next year. Your child should be able to maintain a regular set of customers after one season.

    Safety: Yard work is generally safer than a lawn-mowing job. Without having to operate machines, your child will be much safer.

    What Kids Learn About Money: Because of the variability (变动) in pay, your child will need to learn how to negotiate(谈判) a fair price with homeowners if they ask.

    Lifeguard

    Benefits:

    Responsibility: Kids learn a lot about responsibility when lifeguarding. They are within rights to tell whether a certain activity is safe and are allowed to take action as they see fit.

    Exercise: Lifeguards need to be proficient at swimming and must exercise to stay in shape.

    What Kids Learn About Money: To be a lifeguard, one must be certified. Your child may have to pay for lifeguard training, although some employers provide it on-site.

    A six-wheeled robot travels underground in Hefei to discover warning signs of faults inside the pipeline network, "It looks like a toy car at first, but it's much more complicated than that," said Xu Mao, the robot's operator.

    The pipeline robot, developed by Wuhan Easy-Sight Technology, is made up of four parts — crawler, camera, cable reel, and controller. A full charge can enable the robot to work for four to five hours, covering a distance between 800 and 1,000 meters in the underground p ipeline.

    The robot made its appearance last month in Shushan District. It will carry out inspections of the underground pipeline network stretching 150 kilometers." Whether the pipe is leaking, damaged or blocked, we can clearly see its situation through high-definition(高清晰度的)cameras fixed into the robot, " said Qi Chuanshuai from the provincial construction engineering and testing institute.

    The real-time data including video images of the pipe will be up loaded and displayed on a computer. "If we find any problems, we stop the robot and record the flaws," Xu said. "We report the faults to local government, who will arrange the repair as soon as possible."

    With the rapid develop merit of cities, it is becoming increasingly difficult to manage underground pipelines. Among all the difficulties, discovering faults in the sewage (污水)and rainwater pipelines comes first. Many other cities such as Wuhan, Nanjing, Shenzhen, and Shanghai are using the robots to inspect their pipelines, the robot's developer said.

    Equipped with environmental detection sensors, the robots can monitor temperature and damp, poisonous gases, oxygen levels and smoke density, while providing color diagram in real time. "Compared with human workers, robots are able to enter smaller pipes and are immune (有免疫力的)to poisonous gases in sewage pipes," said Ge Shengli from Shushan District' s city management company." No digging is required and there is no need to interrupt traffic," Ge added.

    Resorts of every kind have sprung up to cater to the Englishman need to spend a part of the year, however briefly, by the seaside. No town in Britain is more than eighty miles from the sea and there are seaside resorts all round the coast. On a summer Sunday most of the roads that lead to the sea axe congested (拥挤) with cars full of people eager to get a breath of sea air. In the evening when everyone is full of food, ice-cream and lollypops, there is the long slow drive home on roads crowded with returning cars.

    Brighton

    Brighton is one of the best-known south coast resorts and is very popular for day trip excursions. It is only fifty miles from London and can be reached by fast train in an hour. At the weekend the pebbled beaches are thronged with people sunbathing or picking their way to the water's edge for a dip.

    Bournemouth

    Located a hundred miles from London, the beaches are wide and sandy. White houses line the cliff tops and narrow valleys, densely wooded with pine trees, reach down to the shore. The area near to the town of Torquay on the Devon coast is sometimes called Britains Riviera and the climate is so mild that palm trees grow along the sea front.

    Blackpool

    On the north-west coast, a popular resort for the people in the industrial north, Blackpool is a gay, noisy town, famous for its amusement facilities and the magical lights. At night people travel from miles around to see the extravaganza of lights decorating the sea front.

    Southend

    On the east coast at the mouth of the Thames, Southend is, like Brighton, one of the favorite resorts of Londoners. The pier here is the longest in Britain and offers a great variety of differing entertainments.

    The term "crocodile tears" refers to insincere sadness. This term has an etymology dating back several centuries. As early as the fourth century, crocodile tears are referenced in the literature with the meaning of insincere sorrow. It is said that crocodiles weep while eating their hunted animals because they are sad; however, this sadness is not honest.

    The term crocodile tears became widely popular after it was documented in a fifteenth-century book titled The Voyage and Travel of Sir John Mandeville, Knight. A passage from the book reads: "These crocodiles kill men and they eat them weeping."

    As you may already know, crocodilians(鳄目动物) likely feel bad about little—especially feeding. However, the assumption of the crocodile-tears metaphor may be true. In a 2007 paper published in BioScience titled "Crocodile Tears: And they eat them weeping", researchers observed 7 crocodilians in cages during feeding time at a reserve (4 caimans and 3 American alligators). The researchers observed the crocodilians outside of water at feeding stations to better find out whether tearing developed.

    Five of the 7 crocodilians developed something like tears in their eyes before, during or after feeding. The researchers suggest that these crocodile tears occur because a crocodilian hisses (发出嘶嘶声) while it eats, and this hissing forces air through the spaces in the bone behind the nose and out the eye, in the process picking up nasolacrimal secretions (鼻泪管分泌物.)

    In humans, crocodile tears is a medical condition that causes a person to tear up while eating. Crocodile tears typically occur because of a temporary loss of facial control due to damage of the facial nerve. Specifically, when the facial nerve grows again, it does so incorrectly thus resulting in tears during chewing food.