I was driving home from the gym with my children. It was approaching bed time.

    “My legs hurt, I can't walk to the car.” said my son, William. Then be sat on the ground regardless of whatever we said.

    “Maybe you just need a banana? They're good for tired bones.” his sister, Meredith, persuaded him in a wise way.

This was the first time I had heard of the banana's miracle(神奇的) cure for achy bones. It distracted(使分心) William and we were able to make it to the car. His wish for bone relief brought him energy and he persisted(坚持) the entire ride home. Upon arrival, he struggled out of the car and slowly went up 3 steps into the house. While he took his ”medicine”, we arrived on a suitable diagnosis (诊断) for his “illness” —a serious case of Banana Bone. He was probably just over—tired. He had a long day and played hard in the Adventure Room at the gym. Thankfully we kept some bananas in the fridge, and hugs and kisses were given as a booster (辅助药剂) , which gave him the courage to walk upstairs to sleep.

    Banana Bone sounds like something I've had before. The aching hasn't been in my bones so much as in my head and my heart. I think it's a condition related to stress, lack of rest and stretching of one's abilities. Perhaps you're experienced it too. It is about long days facing challenges or pressing against the edges of your own ability without any hope.

    That's when you realize Banana Bone doesn't have to be a physical illness. It can be mental. It can drive emotion. It means you can choose it or you can choose against it. It's not real. It' s your reaction to what's real. I know, it' s still not easy. But it' s part of “growing up”. We must have the courage to overcome it and I believe we can make it﹗

    My advice to you? Eat a banana and go to bed. You'll feel a lot better and be your fresh self in the morning.

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    During the cold winter days, there are some interesting festivals in the world. Look at the following ones.

Harbin Ice and Snow Festival

Place: China

Time: January 5 to February 5

People build incredible things out of ice and snow, decorating them with lights.

The Carnival of Venice

Place: Italy

Time: between February and March

One of the most beautiful festivals in the world, people wear masks and elaborate costumes to hide differences among classes, and there an, contests for the best costumes.

Holi Festival

Place: India

Time: late February/March, on, the last full moon day and Sikhs, in India, Nepal, and Sri Lanka celebrate the main day of this incredibly fun 16 -day festival by throwing colored powder and water at each other.

Sundance Film Festival

Place: Utah, the US

Time: end of February

The largest independent film festival in the US. Watch both feature films and shorts. You need to buy a ticket.

    This is a photo of a similar car I own. It's a photo of a Skoda Fabia, I drive one too. A young guy also got out of a similar car as I was getting close to mine. I laughed and was prepared to leave. The young guy continued to have a conversation with me.

    He asked me how I found the car. It turned out that it was his first day to drive the car and it was new and it was a gift from his parents and he'd just passed his driving test today! What a coincidence (巧合)!

    Well, this was a special moment for Nicholas. Who gets a new car the day they learn to drive and then drives into a garage and has a talk with a woman who's driving the same model of car? Yes, beautiful synchronicity (同步性) in full view.

    I wanted to make this moment special for Nicholas, and I wanted to gift him something. Thinking on my feet, I thought I'd buy him a lottery ticket (彩票) but it wasn't special enough.

    I got into my car and removed my Guardian Angel key ring which I had attached to my front mirror. It was there to keep me safe. My birthday is on Guardian Angel's Day too, so this is very special to me. I gave it to Nicholas and he was happy to receive it. Nicholas gave me a big hug.

    Nicholas was not an overconfident guy. He also told me his mum was only out of hospital and now he'd be able to help her get about.

I'll order myself another Guardian Angel key ring for my car for fear that my Guardian Angel will not be protecting me without the key ring. As for Nicholas, well, I wish he and his passengers a lifetime of safe driving.

    The popular smartphone application Instagram (照片分享) has changed the way we look at photography, even our world. The photo-worthy moments we share serve as an important function in cultivating the photographic artistic eye.

    Instagram has got people to start noticing the art in their everyday life. It has also allowed us to share the artful moments in our lives with others. Clearly, making people focus on beautiful moments in their lives and how to share them is a positive takeaway from Instagram.

    Not only has Instagram changed the way we look at things around us, but it has also changed the way people view professional photography. Instagram has turned everyone with a smartphone into an artist. Opening up art to the general community is a groundbreaking (创新的) aspect of this application. Making artistic attempts accessible for everyone to discover their artistic talents and explore creatively is something that has made people find the beauty in the everyday. However, this accessibility has also created questioning around art and respect deserved by professional photography.

    The art in a professional photograph versus an Instagram can sometimes be hard to notice at a quick glance. But photographs taken by true professional photographers hold something that Instagram's can't match in terms of photographic quality, or advanced compositional knowledge.

    This is not to say Instagram is a lesser art. Aesthetic qualities of art are a personal matter and how good an artwork is depends on personal preferences. Good is a very arbitrary term in the art world. For example, I may find one photo more pleasing than another, but not everyone has to agree with me.

    The point I am trying to make is that professional photography should not be lost, but instead approached with a new, enhanced level of respect and admiration—despite how accessible, common and fun Instagram now makes the taking and sharing of photos.

    In a foreign country, a man visited a local restaurant. He didn't speak their language. He ordered something indecipherable off the menu. When the waiter brought him a plate of delicious looking fried noodles, he smiled and made an OK sign at the waiter with his thumb and forefinger linked in a circle. Looking angry, the waiter then picked up the dish and thrown it to his lap. What he did wrong, he wondered. Well, nothing is quite as it seems when it comes to using hand gesture in another country.

    Gestures have been used to replace words in many countries, and they are often specific to a given culture. Gesture may mean something complimentary in one culture, but is highly offensive in another.

    The gesture “thumb-up” is commonly misinterpreted. In English, it is popularly known as 'thumbs up', despite the fact that the action is commonly performed with only one hand. English-speaking Caucasians use it to signal 'OK', which is the same meaning as O.K. ring gesture. The two can in fact be used almost interchangeably.

    Avoid using this gesture in Southern Sardina or Northern Greece unless you want to invite a fight. While American, British and Australian would use the thumb up to signal hitch-hiking to the drivers, this message will not encourage a Greek driver or motorist to stop to give them a ride.

    There are no right or wrong signals, only cultural differences. Lack of cultural understanding will lead to disharmony among people from different cultures. When we know what to look for, such encounters with other cultures are actually very interesting, fascinating and fun. It is certainty a great topic to discuss over a cup of coffee and cakes.

    Metal-organic frameworks(MOFs) are compounds that are set to solve some tough challenges: producing water in the desert, removing greenhouse gases from the air and storing dangerous gases more safely.

    The Arizona desert is really dry. Anyone stuck in it without water would die from dehydration (脱水) within three days. Unless, that is, they had one of Omar Yaghi's next-generation water harvesters. Although daytime humidity(湿度)is only about 10 per cent, this rises to 40 per cent at night, which means there's enough water in the atmosphere to support life — if it can be transformed into liquid form.

    That's exactly what Yaghi's device does. It's a box about the size of a small microwave oven designed to suck the humidity from the air at night and turn it into drinking water the next day using only the heat of the sun as its power source. What makes it work is a special material called a metal-organic framework (MOF), which at normal temperatures attracts water molecules (分子) onto its surface of its internal pores(细孔). Warm it up and the water is released, each harvest producing one-third of a cup of pure drinking water.

    "With further improvements, a device, the size of a washing machine, could produce enough water for the basic needs of a household," says Yaghi, a chemist at the University of California. One-third of the world's population lacks safe drinking water; for them such a device could be a lifesaver.

    These crystalline cluster(结晶群)of metals, such as aluminum or magnesium, linked by organic molecules can be made into materials with an extremely high absorption ability, attracting specific molecules to their surface. In this way, MOFs cling to a variety of liquids and gases.

MOFs work thanks to their unique structure—large quantities of nanometer-sized internal spaces. In fact one MOF has so many pores that they would cover an area as large as six football fields. MOFs are also extremely stable light and have many different uses: their molecular structure can be varied to attract specific molecules, such as water, and their pores can be designed to best store them. Adding a small amount of heat or pressure causes the MOF to release what it is holding. More than 70,000 different MOFs have been produced to date for various applications.