Last summer, as part of my high school graduation project, I volunteered at Saunders House nursing home .I choose this experience because it was something that I had never done before and I wanted to lend a helping hand．At first it was challenging because I was extremely shy. My goal in volunteering was to bring a smile to the residents（住客） by doing different activities from word games to playing chess. I feel as if I had accomplished that goal.

    At the nursing home, I did a lot of different activities with the residents ranging from Jeopardy to Wheel of Fortune. One of my favorites was a word game where I would write a ten -letter word on the board and the residents would try to come up with as many smaller words as possible. I could tell that it was one of their favorite games because they always seemed to be so enthusiastic when they played．I also transported residents to and from their rooms when they needed help; and whenever it was a nice day out, I would take them outside to get some fresh air and relax. On Saturday mornings, I would deliver the newspaper to the residents and on Sundays, I assisted with morning church services.

    The most unforgettable part of this experience was when I had one-on-one conversations with the residents. It was incredible how many great stories they had to tell. Their stories were so interesting and the experience was unforgettable for me .

    I wandered into the small store where I usually buy milk, when the store owner received a call from a customer. The customer and his wife had shopped there several months earlier. He noticed that his wife really liked one thing in the store, so he wanted to buy it as a surprise.

    But the customer was in Tennessee, far away from the store which was in Maine. What was more, he had been to the store several months earlier, and it was difficult to believe that the store owner would remember him, or what he was looking for.

    The store owner took a few close-up photos with her camera, and e-mailed them to the customer on the computer. The customer looked at the photos, and decided which one he wanted. They talked and discussed a price over the phone. She took care of the credit card transaction (交易) online, and promised the gift would be shipped out that afternoon.

    The store owner was really smart. She was willing to push herself to find new ways to make the transaction actually happen. And it did work. However, it was the first time she had ever done it.

    I was amazed that the store owner discovered a creative solution that could lead to a new way of doing business. I was impressed by what she did—so easily, but how difficult it is for many of us to make that leap(飞跃). I'm not just talking about technology, but about learning how to adapt to change. Most people hate or fear change unless they get to know exactly what change needs to be made. However, we should realize that challenge and opportunity go hand in hand.

    As Canadians we may have a love-hate relationship with snow.We love the opportunities it provides: skiing,snow-boarding,cross-country and snowshoeing（雪鞋健行）.There are the advantages of creating snowmen.The beauty of the snow seems to blanket our community after a fresh snow.However,you may hear  icy roads,getting stuck in snow banks,temperature dropping;roofs collapsing（倒塌）from the weight of snow go in the hate category.

    To find joy with winter I have tried various activities to get me out and playing in it.My new favorite for the past 10 years is snowshoeing.The sport becomes popular because it only requires you to lift your knees up higher, which provides a greater exercise benefit.

    According to the Canadian Icons website,snowshoes have been a common form of transport in this country for hundreds of years thanks to the creativity of the native people.The oldest snowshoes were made by the Ojibwa people.With the snowshoes our deep snow walking would be possible.The snowshoes allowed them to float on top of the deep snow by having the weight of the walker distributed across the surface.The snowshoes allowed people to go across the top of the globe from Central Asia to Canada.

    This past New Year's Eve day my oldest son and I went snowshoeing as a great way to end the year by getting to the mountain top.We enjoyed a snack at the top and our dog Indiana rounded out our party.My son took several photos along the way of the amazing views to send them to his new city friends.We are fortunate to live in such a beautiful part of this amazing country.

    Snowshoeing is a great activity to combine your exercise with visiting with friends and families.Wear layers, bring water and snacks and go play in the snow.And your friends will share his enthusiastic story with you.

    Which tablet computer should YOU be buying: They are this year's must have ... and there's a style to suit everyone.

    In 2016, designer Liz Ciokajlo received a task from the Museum of Modern Art (Moma) in New York: revisit the Moon Boot, a fluffy-looking snowshoe inspired by the footwear used by the Apollo astronauts.

    Launched in 1972 at the height of the lunar missions, the Moon Boot is an icon of the 20th Century's “plastic age” and the museum administrators wanted a new take on it.

    Ciokajlo set out to reimagine it. She knew only a biomaterial would work in a “post-plastic age”, but the designer also wanted a new destination to inspire it. Our generation's space travel obsession is not the Moon, she thought, but the red planet Mars. And Mars allows you to really think outside of the box.

    The task led her to an amazing biomaterial that had already attracted the attention of engineers innovating m building materials and of top space agencies like NASA and ESA. Her final design, a tall, female, rough-looking boot, can be made on board a spaceship with almost only human sweat and a few fungus spores (真菌孢子), ideal for a seven-month trip to Mars with limited check-in luggage.

    This magic biomaterial is mycelium (菌丝体), the vegetative part of the fungus It looks like amass of white thread-like structures, each called hyphae. Collectively, these threads are called mycelium and are the largest part of the fungus.

    Mycelium has amazing properties. It is a great recycler, as it feeds off a substrate to create more material, and has the potential of almost limitless growth in the right conditions. It can endure more pressure than conventional concrete without breaking. It is a known insulator and fire-retardant and could even provide radiation protection on space missions.

    On Earth it's currently used to create ceiling panels, leather, packaging materials and building materials, but in outer space it stands out for its architectural potential, says artist and engineer Maurizio Montalti, who has teamed up with Ciokajlo.

    For her revisited boot, Ciokajlo wanted to use the human body as the source for some of the building materials and decided to employ sweat. Reusing sweat is not entirely new in space exploration but a novelty approach for footwear. She thinks it might make astronauts feel closer to home during the long journey to Mars.

    The design is still hypothetical, because the real boot submitted for Moma and currently in display at the London Design Museum did use mycelium but not human sweat, as their deadline was too tight, but the science checks out.

    Do you know that women's brains are smaller than men's? Normally the women's brain weighs 10% less than men's. Since research has shown that the bigger the brain, the cleverer the animal, men must be more intelligent than women. Right? Wrong. Men and women always score similarly on intelligence tests, despite the difference in brain size. Why? After years of study, researchers have concluded that it's what's inside that matters, not just the size of the brain. The brain is made up of "grey matter" and "white matter". While men have more of the white matter, the amount of "thinking" brain is almost the same in both men and women.

    It has been suggested that smaller brain appears to work faster, perhaps because the two sides of the brain are better connected in women. This means that little girls may learn to speak earlier, and that women can understand sorts of different information at the same time. When it comes to talking to the boss on the phone, cooking dinner and keeping an eye on the baby all at the same time, it's women who come out on top every time.

    There are other important differences between two sexes. As white matter is the key to spatial(空间的) tasks, men know better where things are in relation to other things. "A great footballer always knows where he is in relation to the other players, and he knows where to go," says one researcher. That may explain one of life's great mysteries: why men refuse to ask for directions … and women often need to!

    The differences begin when fetuses（胎儿）are about nine weeks old, which can be seen in the action of children when they are very young. A boy would try to climb a barrier before him or push it down while a girl would ask for help from others. These brain differences also explain the fact that more men take up jobs that require good spatial skills, while more women speech skills. It may all go back to our ancestors, among whom women needed speech skills to take care of their babies and men needed spatial skills to hunt, according to one research.