Cold weather has a great effect on how our minds and our bodies work. Maybe that is why there are so many expressions that use the word cold. For centuries, the body's blood has been linked closely with the emotions. People who show no human emotions or feelings, for example, are said to be cold –blooded. Cold –blooded people act in merciless ways. They may do cruel things to others, and not by accident. For example, a newspaper says the police are searching for a cold-blooded killer. The killer murdered someone, not in self-defense. He seemed to kill with no emotion.

    Cold can affect other parts of the body, the feet, for example. Heavy socks can warm your feet, if your feet are really cold. But there is an expression—to get cold feet –that has nothing to do with cold or your feet. The expression means being afraid to do something you had decided to do. For example, you agree to be president of an organization. But then you learn that all the other officers have given up the position. All the work of the organization will be your responsibility. You are likely to get cold feet about being president when you understand the situation.

    Cold can also affect your shoulder. You give someone the cold shoulder when you refuse to speak to them. You treat them in a distant, cold way. The expression probably comes from the physical act of turning your back toward someone, instead of speaking to him face-to-face. You may give a cold shoulder to a friend who has not kept a promise he made to you. Or, to someone who has lied about you to others.

    A cold fish is not a fish. It is a person. But it is a person who is unfriendly, unemotional and shows no love or warmth. A cold fish does not offer much of himself to anyone.

    Out in the cold is an expression often heard. It means not getting something that everybody else got. A person might say that everybody but him got a pay raise. He was left out in the cold. And it is not a pleasant place to be.

    Dutch masters exhibition in Beijing

    The 17th century Dutch Golden Age had several significant artists and a range of great pieces produced during the period—including Jan Vermeer's Young Woman at Virginal,Jan Lievens' Boy in a Cape,and Turban and Rembrandt's Self-Portrait with Shaded Eyes.

    Some of the most refined examples of the time,including the three pieces mentioned above,will make their debut（首次亮相）in China as part of a world tour of The Leiden Collection.

    If you go:

    9 a.m.-5 p.m.,June 17-Sept 3 (closed on Mondays).National Museum of China,I Wusi Avenue,Dongcheng district.010-6400-1476.

    Ticket: 50 yuan ($7)

    The Age of Mechanical Reproduction

    The Age of Mechanical Reproduction,the latest exhibition at the Riverside Art Museum,features 41 artworks of US pop icon Andy Warhol,covering art installations,paintings and photographs.Warhol's well-known installation Electric Chair is a highlight of the show,which is also its debut in Asia.

    If you go:

    10 a.m.-5 p.m.,through August 28 (closed on Mondays).The Riverside Art Museum,Hongyan Road,Chaoyang district.010-5309-2062.

    Ticket: 60 yuan

    Back with a bang

    Beijing-based hand Escape Plan will hold a concert in Beijing this weekend.The band is most famous for the song The Brightest Star in the Night Sky.

    If you go:

    7:30 p.m.,June 17.Beijing Worker's Gymnasium,Gongti Beilu,Chaoyang district.400-610-3721.

    Ticket: 280-980 yuan

    Purple clay teapots

    Yixing purple clay potteries are a vital part of Chinese pottery culture and have been included in China's list of national intangible cultural heritage（国家非物质文化遗产）.A selection of more than 80 purple clay teapots will go on display at the Poly Art Museum starting Friday.The exhibit will include a range of delicate teapot works of Ji Yishun,Wang Xiaolong and Gao Lijun,who are all inheritors（继承人）the time-honored（历史悠久的）pottery handicraft.

    If you go:

    9:30 a.m.-4:30 p.m.(closed on Sundays),through June 30.Poly Art Museum,New Poly Plaza,1 Chaoyangmen North Street 9.010-6500-8117.

    Ticket: 20 yuan

    You can't always predict a heavy rain or remember your umbrella. But designer Mikhail Belvacv doesn't think that forgetting to check the weather forecast before heading out should result in you getting wet.

    That's why he created Lampbrella, a lamp post with its own rain sensing umbrella.

    The designer says he came up with the idea after watching people get wet on streets in Russia. "Once, I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy(伞蓬) built into a street lamp," he said.

    The Lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella on demand. Sensors (传感器)then ensure that the umbrella offers pedestrians shelter whenever it starts raining.

    In addition to the rain sensor, there's also a 360 motion sensor on the fiberglass street lamp which detects whether anyone's using the Lampbrella. After three minutes of not being used the canopy is closed.

    According to the designer, the Lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lighting strike. Each Lampbrella would offer enough shelter for several people. Being installed at 2 meters off the ground it would only be a danger for the tallest of pedestrians.

    While there are no plans to take Lampbrella into production, Belyaev says he recently introduced his creation to one Moscow Department and insists this creation should be installed on the street where a lot of people walk but there are no canopies to provide shelter.

When looking at fashion shows or the latest magazine trends, you might think you've seen it all before. It seems that designers often revisit past concepts （概念）. However, to glimpse the future of fashion, one must turn to the meeting point of fashion and technology, where innovative ideas are born.

For several years now, people have been talking about "wearable technology" as the next big development. You can already buy watches that do everything your smartphone can do, or glasses with computers that follow your eye movements and feed information to you as you walk around. But there's much more to wearable technology than that.

Sports clothing is one of the areas. Runners already wear small computers on their wrists（手腕） that give them continuous information about how fast they're running, how hard their bodies are working, and so on. Experts agree that it's often sportspeople （usually young men） who are the first to take up new fashion ideas. Others then follow.

Women, it seems, are usually more interested in what clothes look like than what they can do, and technology has a part to play here too. Designers are making clothes that can change color with how you feel, or react to sound. And if you think that sounds unlikely, just think of all the things we accept as quite normal today that seemed impossible or silly only ten years ago.

The primary reason such items aren't available in mainstream stores is their high cost. However, like all technological products, their prices are likely to decrease rapidly, as technological clothing doesn't necessarily have to be costly.

Day Trip to Tarangire National Park

Tarangire is one of those parks whose beauty is not fully recognized by people. It is often only visited for day trips because it is close to Ngorongoro and the Serengeti. It is full of elephants, zebras and lions. It also has some superb scenery to go with it. You can also see sights such as the Tarangire River.

Tarangire has the second highest concentration of wildlife in Tanzania after the Serengeti and the highest concentration of elephants in the world. It has over 700 lions living there as well as a wide selection of other animals.

Itinerary(行程)

You will be picked up from your accommodation. After an approximate 3 hours' drive, you will arrive at Tarangire National Park. The name of this national park originates from the Tarangire River that crosses the park. The park is considered as one of the best places to view elephants up close. From the open roof of the safari (野外观兽旅行) vehicle you will be able to absorb the landscape and see the animals wandering around. In the late afternoon you will have a hot meal, and then you will leave the park and drive back to Moshi.

Included in the price (US $620 per person)

☑Al l Tanzania national park fees ☒International flights to/from Tanzania

☑ Meals according to the itinerary for ☒Alcoholic and soft drinks

each day ☒Personal expenses & tips

☑Bottle of mineral water for each day ☒Travel insurance & visa fees

☑Professional English-speaking guide ☒Extra activities within the park

☑Safari 4 ×4 jeep with all accessories ☒ Hotel accommodation before and after the safari 

Come and start your day trip! Click here and fill out the form to send a booking request immediately.

Human rubbish can be a cockatoo's (凤头鹦鹉) treasure. In Sydney, the birds have learned how to open dustbins and throw rubbish around in the streets as they hunt for leftovers. People are now fighting back.

When cockatoos learn how to open dustbin lids (盖子), people change their behavior, using things like bricks to weigh down lids, to protect their trash from being thrown about. That's usually a low-level protection and then the cockatoos figure out how to defeat that. That's when people strengthen their efforts, and the cycle continues.

Tricks such as attempting to scare the parrots off with rubber snakes don't work very well. Nor does blocking access with heavy objects such as bricks; cockatoos use force to push them off. Hanging weights from the front of the lid or placing items such as sneakers and sticks through a bin's back handles work better. Researchers didn't see any birds get inside bins with these higher levels of protection.

The findings suggest an arms race, but the missing piece is how the birds will respond as people try new ways of blocking bins. Some survey responses suggest that the parrots are learning.

Cockatoos may stay away from strategies that take too long to beat. Bricks, for instance, are easy to quickly push off a bin; breaking sticks placed through the bin's back handle could take more time. Perhaps if enough people in a neighborhood adopt a highly effective method, Clark. a behavioral ecologist says, the cockatoos may not find it worth it to stop by.