Mrs. Strickland did not talk much, but she had a pleasant gift for keeping the conversation general; and when there was a pause she threw in just the right remark to set it going once more.

    "Why do nice women marry dull men?"

    "Because intelligent men won't marry nice women. "

    Mrs. Strickland had the gift of sympathy.

    There was another thing I liked in Mrs. Strickland. She managed her surroundings with elegance(优雅). Her flat was always neat and cheerful with flowers. The meals in the little dining room were pleasant; the table looked nice; the food was well cooked. It was impossible not to see that Mrs. Strickland was an excellent housekeeper. And you felt sure that she was an admirable mother. There were photographs in the drawing room of her son and daughter. The son—his name was Robert—was a boy of sixteen at Rugby. He had his mother's fine eyes. He looked clean, healthy, and normal.

    “I don't know that he's very clever,” she said one day, when I was looking at the photograph, “but I know he's good. He has a charming character.”

    The daughter was fourteen. Her hair, thick and dark like her mother's, fell over her shoulders, and she had the same kindly expression and untroubled eyes.

    “They both look like you,” I said.

    “Yes, I think they are more like me than their father.”

    “Why have you never let me meet him?” I asked.

    “Would you like to?” she smiled and her smile was really very sweet.

    “You know, he's not at all literary,” she said. “He has no interest in literature.”

    “He's on the Stock Exchange(证券交易所), and he's a typical broker(经纪人). I think he'd bore you to death.”

    “Does he bore you?” I asked.

    “You see, I happen to be his wife. I'm very fond of him.” She smiled to cover her shyness, and her eyes grew tender.

    “He doesn't pretend to be a talent. He doesn't even make much money on the Stock Exchange. But he's awfully good and kind.”

    “I think I should like him very much.”

    “I'll ask you to dine with us quietly some time, but mind, you come at your own risk; don't blame me if you have a very dull evening.”

    Everybody should have some level of first aid ability, because accidents and medical emergencies can happen anywhere at any time. St John First Aid courses give you the knowledge and confidence to provide effective first aid whenever it's needed.

First Aid Level 1

    Ideal(理想的) for anyone who wants to learn basic first aid or needs to renew their first aid qualification. Courses can be held at St John or your workplace.

Fee: $162(includes GST)

Duration(持续时间): Eight hours

First Aid Level 2

    Includes all course content from First Aid Level One, plus an additional half day. Ideal for special first aiders, health and safety managers and anyone who needs a first aid qualification.

Fee: $235(includes GST)

Duration: 12 hours

Pre-Hospital Emergency Care (PHEC)

    Advanced training for first aiders who already hold unit standards 6400 and 6402. Ideal for people who require advanced first aid skills or a pre-hospital emergency care (PHEC) qualification for their work.

Fee: $635(includes GST)

Duration: Three days

Child First Aid

    Ideal for parents, grandparents and other family caregivers. A recognized qualification for childcare workers.

Fee: $65(includes GST)

Duration: Four hours

Outdoor First Aid

    First aid response for accidents and medical emergencies in the wilderness. For groups of eight or more.

Duration: One to two days depending on experience

Sports First Aid

    First aid response for common sporting injuries and medical emergencies. Includes ACC injury prevention advice.

Duration: Eight hours.

    A “virtual (虚拟的) cocktail” glass that lets you change the flavor (味道) of your drink using your Smartphone has been developed by scientists.

    Offering a customizable (定制的) range of drinks and tastes, the Vocktail can change a glass of water into a cocktail at the press of a button. The world's first technology tricks your brain into thinking it is experiencing a specific flavor by fooling your senses of sight, smell and taste.

    Developed by researchers at the National University of Singapore, the glass' three sensory components are controlled via a Smartphone App. Because the software can combine a number of smells, colors and tastes, the Vocktail can create almost any flavor.

    Developer Nimesha Ranasinghe said: “Our approach is to increase drinks flavor experience by overlaying outer sensory stimuli (刺激物). For example, in the Vocktail we overlay color, taste and smell sensations to create an adjustable flavor experience. Flavor is mainly how we feel food and that is achieved through the use of these senses. Therefore, by changing the color of the drink, using different smells and changing the taste through electricity, we are able to copy the flavor of a drink without it actually changing the liquid.”

    The glass houses three fragrance containers connected to micro-air pumps. The pumps release smell that change your feeling of the drinks, flavor. For example, a lemon fragrance will trick your brain into believing it is tasting lemon-flavored drink.

    On the outside edge of the glass are two electrode strips (电焊条) that send electric pulses into your tongue to stimulate your sense of taste and flavor differs with different pulses.

    Chimps will cooperate in certain ways, like gathering in war parties to protect their territory. But beyond the minimum requirements as social beings, they have little instinct to help one another. Chimps in the wild seek food for themselves. Even chimp mothers regularly decline to share food with their children, who are able from a young age to gather their own food.

In the laboratory, chimps don't naturally share food either. If a chimp is put in a cage where he can pull in one plate of food for himself or, with no great effort, a plate that also provides food for a neighbor to the next cage, he will pull at random —he just doesn't care whether his neighbor gets fed or not. Chimps are truly selfish.

    Human children, on the other hand are extremely cooperative. From the earliest ages, they decide to help others, to share information and to participate in achieving common goals. The psychologist Michael Tomasello has studied this cooperativeness in a series of experiments with very young children. He finds that if babies aged 18 months see an unrelated adult with hands full trying to open a door, almost all will immediately try to help.

    There are several reasons to believe that the urges to help, inform and share are not taught .but naturally possessed in young children. One is that these instincts appear at a very young age before most parents have started to train children to behave socially. Another is that the helping behaviors are not improved if the children are rewarded. A third reason is that social intelligence develops in children before their general cognitive (认知的) skills, at least when compared with chimps. In tests conducted by Tomasello, the children did no better than the chimps on the physical world tests, but were considerably better at understanding the social world.

    The core of what children's minds have and chimps' don't is what Tomasello calls shared intentionality. Part of this ability is that they can infer what others know or are thinking. But beyond that, even very young children want to be part of a shared purpose. They actively seek to be part of a “we”, a group that intends to work toward a shared goal.

    Throughout the year, a number of Youth Exchanges activities are held by an organization— The International Voluntary Service. These activities give small groups of 45 young people the opportunity to take part in volunteering trips abroad for an average of two weeks. These young people are joined by 45 young people from 34 other nationalities and will be a wonderful intercultural experience in a safe environment.

    Example Youth Exchanges：

    Youth Exchange 1

    Location：Ireland

    Other nationalities: Spain, Italy, Hungary

Theme: Focuses on the topic of community reconstruction and community activities—exploring how local issues facing our communities are connected to global issues. The group will also learn about the ecovillage as an example of a community and take part in teambuilding activities.

    Youth Exchange 2

    Location：France

    Other nationalities: Bulgaria, Italy

    Theme： Organic gardening & continual living. This project will take place in a natural park, where the group will take part in gardening activities and games about continuous development.

    Youth Exchange 3

    Location：Macedonia

    Other nationalities: Serbia, Turkey, Ireland

    Theme：Foster(培养) social inclusion（融入）and motivate personal development of young people through sports and outdoor activities. Promote outdoor activities as a tool to help inclusion of young people with fewer opportunities.

    Youth Exchange 4

    Location：Italy

    Other nationalities： Bulgaria, Greece

    Theme：A social-environmental project that intends to promote social inclusion and continuous development, regarded as a process of civil rights and active citizenship. Over 10 days, the group will take part in activities to raise awareness(意识) about the effect of our behavior on the environment.

Steager is an engineer at the University of Pennsylvania. His colleague Hyun Koo is an inventor and dental researcher there. Together, they found a way to form the nanoparticles（纳米颗粒）into long, skinny bristles（鬃毛）, a lot like the ones on a toothbrush. But these bristles shape-shift to fit whatever surface they encounter. They can even squeeze between teeth.

"A new way to clean teeth could help out anyone who finds this chore boring," says Koo. But it would be especially life-changing for people with disabilities or illnesses that make it difficult or impossible to hold and move a toothbrush.

The tooth-cleaning robot works thanks to two magnets（磁铁）. One goes on each side of the teeth. The nanoparticles sit in a water-based solution between the magnets. When the magnets are turned off, the nanoparticles float randomly in the solution. As soon as one magnet gets turned on, the nanoparticles clump together near its center. When you turn on the other magnet and turn off the first one, the nanoparticles extend outward in long, skinny bristles.

When there's a tooth in the way, these bristles can't stretch out as far as they want. So they push against the tooth's surface. If there's a gap between teeth, they push into the gap. Moving the magnets makes the bristles move against and between teeth.

Besides, as a bonus, the nanoparticles can kill what harms the teeth and keep them health y because it contains something commonly added to toothpaste and mouthwash.

The new invention is just a proof of concept. The researchers still need to turn it into a product that people will want to use. It must fit comfortably and safely in people's mouths. It can't draw too much power or cost too much. "There's a lot of engineering to get from here to there," says Steager. But he adds, "every good idea needs to have a start."