It was Saturday morning. I heard loud noises of moving furniture in the next room. I could almost feel the excitement of John who was soon going to get a room of his own. I remember my own feelings when I was 13. I knew how much he longed for his right to privacy (私人空间) when he was sharing a room with his younger brother, Robot. He said, “Mum, Can I please have a room of my own? I could use Jeff's. He won't mind.”

    It was true that Jeff had graduated from college and flown from the nest. But would he mind? The room was the place where I told him a thousand stories and we had a thousand talks. As close as we were, though, the time came when Jeff needed a door between us. His life was spreading into areas that had less to do with family. I no longer could-or should-know everything about him.

It turned out that getting Jeff's permission was easy. He said, “Of course, Mum, it would be selfish of me to hold on to it.” Then his voice softened, “Mum, I won't be living at home again—you know that.” Behind his glasses, his eyes were lit with all the love. There were no doors closed here—they had all opened up again.

    As John and I were cleaning the room, I fixed my eyes on Jeff's things around me and could almost touch the little boy who I knew was gone forever. I looked at the room and, in my heart, I let it go. To hold on would be, as Jeff said, selfish. Now it was time for John, shouldering through the door, his eyes bright with promise of independence, to disappear behind the door. It was time for letting go to happen again.

    When I was a kid, I loved reading history, science fiction, detective stories, but especially comics. I had piles of them and kept talking my Dad into making more shelves for me. One day, I read about a 13-year-old boy who had actually written one of my favorite comics, Legion of Super-Heroes, and I said, “I can do that too.” That year, I was two years younger than the writer.

    Three years later, a friend and I started our own fan magazine about comics. It became the first place that regularly told people when their favorite comics were coming out and writers and artists were working on them. Because of the magazine, I won the awards for The Comic Reader, but more important, it got many of the people in the field to know who I was.

    One day when I was visiting DC Comics for news for my next issue, one of the editors a chance to write text for his comic. Suddenly, at 16, I was getting paid to write.

    I was able to pay for my college classes working as an assistant editor at DC Comics and learned how to write comics stories while I was there. I wrote hundreds of stories. Over the years, I worked as an editor and an executive (主管) for the company, eventually serving as a president and publisher, until earlier this year. Now I'm back to my first love, writing comics again.

    Every morning, I open my e-mail and find pages of art sent in by artists across the country who draw my stories. When I'm tired of working on the stories, I can go online and find my readers commenting on my stories or telling me when I make mistakes.

    Keep reading and writing, it's a wonderful way to live.

    The family of a 6-year-old adopted Chinese girl who badly needs a bone marrow transplant (骨髓移植) believes they have found a match in China.

    Kailee Wells suffers from a serious aplastic anemia (再生障碍性贫血), which prevents bone marrow from producing new blood cells. She has taken courses of treatment but has shown little sign of recovery.

The best help for such patients is a transplant of healthy marrow or blood cells from a suitable donor. Certain tissue of the patient and the donor must match.

    Kailee's mother, Linda Wells, made her second trip to China earlier this month to find a donor. Her husband, Owen Wells, said that his wife believed doctors there had found a match.

     “For these last 22 months, we've been living in fear that Kailee would take a turn for the worse and there would be nothing we could do about it,” he said. “Now we have something we can use and save our little girl. We are just about ready to start jumping up and down and rejoicing.”

    Wells said a Chinese girl who is about a year old has a blood sample that matches Kailee's perfectly. The next step, he said, would be to make sure the sample is safely harvested and protected for transplant, the details of which have yet to be worked out.

    Linda Wells first traveled to China in February to try to locate the girl's birth mother, who is likely to be a match. But she found no relatives and decided to try again this month.

    “This gives us so much encouragement because now we found what we thought we would never be able to find for Kailee,” Owen Wells said. “We're going to continue our blood donor drive to try to continue to help as many people as we possibly can. We're just so happy.”

    It was the last day of the final examination in a college. On the steps of building, a group of engineering students were waiting for the last exam. On their faces was confidence.

    They knew the exam would be easy. The professor (教授) had said they could bring any books or notes during the test.

    Right after they came into the classroom, the professor handed out the papers. There were only five questions on it.

    Three hours passed. Then the professor began to collect the papers. The students no longer looked confident. On their faces was nervous expression. The professor watched the worried faces before him, and then asked, "How many of you have completed all five questions?" No hand was raised. "How many of you have answered four?" Still no hands. "Three? Two?" The students moved restlessly in their seats. "One, then? Certainly somebody has finished one." But the class kept silent. The professor said, "That is exactly what I expected. I just want to make you know clearly that even though you have completed four years of engineering, there are still many things about the subject you don't know. These questions you could not answer are common in everyday practice." Then, smiling, he added, "You will all pass this course, but remember, your education has just begun."

    The years have obscured the name of this professor, but not the lesson he taught.

Wonderful Experiences in Australia

Phillip Island Nature Park

Adult: ￡79. 00

Child: ￡67. 00

Location: Melbourne

Have fun at Phillip Island Nature Park. You will spend half a day there. You can see many animals, such as koalas, kangaroos and penguins at the peak.

Balloon Flight

Adult: ￡209. 00

Child: ￡161. 00

Location: Melbourne

Enjoy an early morning balloon flight over the beautiful city of Melbourne. After the flight you will enjoy a wonderful breakfast at the Hilton Hotel.

Amazing Sailing

Adult: ￡168. 00

Child: ￡126. 00

Location: Sydney

Relax and enjoy the wonderful sights of the heart of Sydney as you sail across the sea in a large boat.

Restaurant Tour—Lunch

Adult: ￡56. 00

Child: ￡50. 00

Location: Melbourne

Having lunch in Melbourne can be a wonderful experience, specially in old trams that have become restaurants.

Robots have long been drawing inspiration from animals, with the creation of robot dogs or snake-shaped robots. And yet, the field of robotics is far less enthusiastic about the other kind of living things—plants. Barbara Mazzolai, an Italian roboticist owes this to a misconception about plant behavior: that they cannot move or think. "It's not true at all," she says. To challenge this view, Dr Mazzolai and her team recently launched a machine called "FiloBot", a robot based on a climbing species.

To survive, a climbing plant must switch between several different behaviors. In forest environments, it must first grow out of the soil and travel along the ground in search of a support to hold onto, such as a nearby tree. Once a support is located, though, the plant fixes itself around the object and then growing towards the light. To choose the best angle to grow upwards, a climbing plant uses its shoots(芽) to receive information about light and gravity.

FiloBot has sensors on its main shoot. It can 3D-print its body with plastic and grow at a controllable rate. These functions researchers found, enabled FiloBot to cross gaps, and find things to attach to. The lack of heavy on-board computing device means that it is light and requires minimal care, while its slow pace means that it doesn't disturb things around it, making it possible to move through a complex, unseen environment, or monitoring disaster sites.

For now, FiloBot is still being tested. Its tendrils(卷须) have not left the laboratory. Still, it has already been employed in deconstructing plant behaviour. For example, it was long assumed that climbing plants find their supports by growing towards shade, though the exact mechanism was unclear. FiloBot could imitate this behaviour by detecting far-red light, which is typical of shaded areas, providing clues to how plants do it.

Dr Mazzolai hopes that such projects will inspire other roboticists to take their cues from plants and develop completely new technologies.