Japan's youth are losing interest in science and as a result, threatening the nation's industrial progress. According to Japan Science and Technology Agency, young Japanese are surrounded by high-tech devices(设备), but are not interested in how they work.

    Japanese businesses have succeeded partly because they've a great many engineers. A drop in interest could lead to a decline(减少) in their numbers and quality. "In the past, the young had a big interest in science and technology," said Hirano, director of the agency's policy department.

    There are two main reasons for the problem. The first is known as "black box syndrome" of modern technology.

    Electronic devices depend on tiny silicon chips（芯片）, which can only be made in big factories, whose workings can't be seen by the eyes. The devices, unlike machines of the past driven by gears and wheels, are simply boxes.

    Young Japanese, brought up on video games and at home with computers, enjoy using modern technology, but this is a passive interest and different from the interest in how things work. "You need an active interest to get interested in science. This is declining in the young," said Hirano.

    About two-thirds of Japanese in their 20s use PCs, twice the number of those in their 50s. But only 40% of those in their 20s say they are interested in news about science and technology, compared to 60% of the 50 to 60 year olds.

    "Another reason for it is that life in modern Japan is too comfortable," he said. "A wealthy society reduces people's desire to modernize and develop their country. To a degree, you can't avoid this when the fruits of science and technology are fully developed." Similarly, science in Europe and the US has also suffered a lack of interest.

Because of his family's Jewish background, they are sent to live in the concentration camps (集中营). Scared and alone, Joshua one day makes friends with a little mouse he calls Bethlehem who becomes his closest friend.

in faith and to be a cure for chromic depression(长期抑郁) … cure to strengthen identity and purpose.

presents the highlights of his 83 years of life, including his trips to India and the study of the writings of several great spiritual leaders.

More things in Heaven will appeal to anyone who insists on finding the deepest meaning for their existence based on their own experience.


Creation or Evolution
Michael Ebifegha
ISBN9781450289023

Were humans created ,or did they evolve? How old is the Earth? The debate between science and religion continues to be heated. In Creation or Evolution, Michael Ebifegha examines these two opposed world views within the structure of empirical(实证的) science.


Seeking the Edge
Dr. Joseph L. Rose
ISBN9781462031795

    Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

    “To provide enough power, we need certain methods with high energy density (密度)”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope (放射性同位素) battery can provide power density that is much higher than chemical batteries.”

    Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro/nanoelectromechanreal systems (MNEMS) Although nuclear batteries can cause concerns, Kwon said they are safe.

    “People hear the word 'nuclear' and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”

    His new idea is not only in the battery's size, but also in its semiconductor(半导体). Kwon's battery uses a liquid semiconductor rather than a solid semiconductor.

    “The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”

    Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery, In the future, they hope to increase the battery's power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

    Over millions of years, African penguins have developed a keen sense of where to find food. Once they're old enough, they set off from the shores on which they were hatched（孵化） for the first time and swim long distances in search of tasty fish like anchovies and sardines. But they don't search directly for the fish themselves. When African penguins head out to sea, they look for areas with low surface temperatures and high chlorophyll（叶绿素）. Because those conditions signal the presence of algae（藻类）. And lots of algae means lots of plankton（浮游动物）, which in turn means lots of their favorite fish. Well, that's what it used to mean.

    Climate change plus overfishing have made the penguin feeding grounds a mirage（海市蜃楼）. The habitat is indeed plankton﹣rich, but now it's fish﹣poor. Researchers call this an "ecological trap." "It's a situation where you have a signal that previously pointed an animal towards good﹣quality habitat. That habitat has been changed, usually by human pressures. The signal stays, but the quality in the environment gets worse."

    Richard Sherley, a zoologist at the University of Exeter and his team used satellite imaging to track the African penguins from eight sites along southern Africa. Historically, the birds benefited from tons of fish off the coasts of Angola, Namibia and western South Africa, but now they're going hungry.

    "I was really hoping we'd see them going east, and finding areas which the fish had moved to but it ends up being quite a sad story for the penguins." said Richard.

    The researchers calculate that by falling into this ecological trap, African penguin populations on South Africa's Western Cape have declined by around 80 percent.

    Some research groups are exploring the idea of moving them to a place where they can't get trapped, like the Eastern Cape. But Sherley thinks that a solution in the long run means making and carrying out rules to create more sustainable（可持续的） fishing industry, which needs public support.

    Most dog owners have probably been puzzled waiting for their dog to do its business. Instead of just finding a soft area of grass to go number two, they make a whole ritual(仪式) out of it, spinning in a circle before finally squatting(蹲下). Luckily, the ultimate pet owners' question may finally have been answered.

    A few theories have circulated about why dogs might circle before pooping  and most are similar to the reasons they spin before lying down. Trampling around in a circle would flatten the grass around, which would keep tall blades(叶片) from trapping their waste. Another explanation could be that they're scanning for snakes and predators before they become completely occupied.

    But Czech researcher Hynek Burda didn't quite buy into those theories. Dogs evolved from wolves, which didn't need to worry much about tall grass. And if they were scanning their environment, keeping still to listen and sniff would be more effective than giving the area a quick once-over. Instead, Burda suggested that dogs spin to get a feel for the Earth's magnetic pull.

    The Earth has a magnetic field around it protecting it from radiation from space, and some animals seem to use it to get a sense of where its North and South poles are. For instance, it's how birds know which way to migrate. In 2013, Burda published a study in the journal Frontiers in Zoology suggesting dogs have a strong internal compass, too. He and his team spent two years watching 70 dogs poop and pee and recording which way they faced and how strong the magnetic(磁的) field was.

    As it turns out, when the magnetic field was calm, dogs preferred to poop facing either north or south.

    The pattern couldn't explain why dogs like facing the Earth's poles, but the researchers think it might help them remember where they marked their territory.

    If they can remember which way they were facing, they might find it easier to find that spot again. So before you roll your eyes when your dog takes ages to do his business, remember that Fido might just be getting scientific about his potty spot.

    They were a happy family: four daughters all in the same school in different grades. The youngest, Janice, who was in my class, seemed to be glued (粘) to her mother's skirts. The three older girls took the bus to school every morning, but Janice was always driven to school by her mother.

    One Friday, Janice's mother asked for a talk with me. She said in a soft voice, "My husband is going to Europe on business for two weeks, and he insists that I go with him. I have tried to explain over and over that Janice needs me here. But he thinks that she will be fine without me so I have no choice; I have to go. I have told the babysitter to drive her every morning. Will you please give Janice special attention and help her? I want to be sure everything goes well for her."

    I told her that we would make every effort to support Janice. I even volunteered to meet Janice at her car so she would see a familiar face. As a mother myself, I'd like to help. Janice's mother thanked me for our understanding.

    On Monday morning, expecting a tearful, anxious child, I planned a special program of fun and games. I waited outside to greet Janice, but just then the bus arrived and not three, but four girls got off. Janice skipped along joyfully, saying "goodbye" to her sisters as she ran with two friends into the classroom. I walked slowly into the classroom and called Janice over to ask how the bus ride went. Impatiently she said, "Oh, I always want to take the bus with the other kids, but Mother needs to be with me. You see there won't be any more babies, so I have to be a baby a little longer. While she is away, I'll just ride the bus every day. I am five, you know."