EUROPE is home to a variety of cultural treasures. Lonely Planet, the world's largest travel guide publisher, has offered pairs of cities for culture-hungry but time poor travelers.

    London and Paris

    It takes you about two hours to travel from London to Paris by Eurostar, a high-speed railway service. The two capital cities have been competing in fashion, art and nightlife for decades — but each secretly looks up to the other.

    No one can doubt the grand and impressive beauty of Paris' Louvre Museum, but if you want to save money, you cannot skip the British Museum free to visit. Compared with London, Paris has more outdoor attractions, such as the beautiful green walkway La Promenade Plantee.

    In Paris, you'll see diners linger(逗留) over red wine. While in London, you can try some afternoon tea, eat fish and chips or salted cake.

    Vienna and Bratislava

    Austrian capital Vienna and Slovakia city Bratislava are an hour apart by train. But since they are linked by the Danube River, the best way to travel is by ship. A tour of the two cities is the perfect way to experience everything from 17^th century's Habsburg dynast splendor to sci-fi restaurants.

    Vienna is famous for Mozart and imperial palaces. You can appreciate the perfect blending(融合) of architecture and nature in the grand Scholoss Schonbrunn Palace, and reward yourself with a cup of Vienna coffee, which has made its way to the world's cultural heritage.

    Bratislava is best known for its fine dining—the remarkable UFO restaurant. You can enjoy a meat-filled dinner here in an amazing setting.

    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.

Climbing Without Ropes

    The popular image of the mountain climber is of a person carefully climbing a steep cliff with a network of safety ropes, but it is not the only kind. Many climbers now enjoy bouldering. It's more accessible and better for the environment.

    Here is an example of a climber addressing a bouldering problem.

    Figure 1: The climber has two routes she could take, one to the left and one to the right. The left one appears easier because it has a jug within easy reach, but look what happens if she chooses that direction. She gets stuck on the rock and has to go back down. Sometimes that is even difficult than going up.

    Figure 2: The climber takes the one to the right this time. using a foothold and placing her right hand in a crimp, she is able to life herself up and locate other handholds. After only a few moves, she is able to throw her leg over the top of the boulder and pull herself up.

    The latest study by the University of Florida has found that eating from smaller, less beautiful, and even paper plates will help prevent overeating. Eating with a fork instead of a spoon can help you lose weight, the researchers say. Much to their surprise, they find that putting mirrors in the dining room will also help reduce weight.

    The researchers asked 185 college students to choose a chocolate cake or a fruit salad, and evaluated the taste. Those who ate in a room with a mirror scored the taste of junk food much lower than those in a room without a mirror. But the taste of fruit salad remained the same in any case.

    Lead scientist, Dr. Ata Jami, says that a glance in the mirror tells people more than just about their physical appearance. It enables them to view themselves objectively and helps them to judge themselves and their behavior in the same way that they judge other people.

    The mirrors were found to push people to compare and match their own behavior with accepted social standards. The researchers believe it proves that people don't want to look in the mirror when they feel they are following the social standards. When they look in the mirror with mouths full of junk food, feelings of discomfort and failure can be increased. Therefore, the presence of the mirror lowers the taste of unhealthy food.

    However, researchers say this is only the case if people select the food they are eating, because they are responsible for that choice. The researchers suggest that mirrors be placed in dining rooms and other eating spaces, so that people will start eating more healthily.

    Do you ever wonder why trees begin to bud (发芽) earlier in some cities? Scientists finally found the answer but it's not very pleasant. New science suggests a relationship between light pollution and the timing when trees produce buds, which signals the arrival of the spring season.

    Light pollution is defined by the Lighting Research Center as the unwanted consequence of outdoor lighting such as street lights. Excessive (过多的) man-made light at night results in disturbed natural cycles, and also prevents the observation of stars and planets at night. But its effect on the environment goes beyond that.

    By studying some trees, researchers found out that trees that are more exposed to artificial lighting at night bud up to 7.5 days earlier than those at the natural nighttime setting. And they found out that light had a more significant effect than temperature when the buds came out. The early budding may cause problems for insects, which feed on leaves, and the birds which then feed on them in turn. Professor Richard French Constant, who helped lead the research, explained that more than the budding of trees, the study implies the danger to the balance of the ecosystem. “At the moment, caterpillars (毛毛虫) are timed to hatch to make the most of the opportunities to feed on freshly budded leaves, and birds hatch in time to feed on the young caterpillar,” he said.

    Migratory (迁徙的) birds are also negatively affected by light pollution. The glare might confuse them and make them lose their flying sense. The phenomenon might explain why some birds accidentally knock into buildings.

    Such results stress the need to pursue studies that aim to measure the effect of light pollution. If the issue were left to continue, it is estimated that by 2100, spring would begin almost a full month earlier than it does today.

Coco Gauff used to visit the Grand Slam tournament (大满贯锦标赛) as a kid to see her idols Serena and Venus Williams. Now she is a champion there herself. On Sept 9, the 19-year-old from the US won her first major women's singles title at the 2023 US Open (美国网球公开赛).

After an average start, Gauff surged to a 2-6, 6-3, 6-2 victory over her bigger, stronger opponent, Aryna Sabalenka, from Belarus, who became the new world No.1 the day after the tournament ended.

Unlike the Williams sisters, who have obvious force and power, Gauff is small and slim. But she moves fast on the tennis court. Forbes magazine said, "She is the quickest and perhaps already the best returner of impossible shots in tennis history."

Even though Sabalenka is a very powerful hitter, it felt like she had to finish each point four or five times, as Gauff's defense was so perfect, noted The Telegraph. This ended up frustrating Sabalenka and caused her to make 46 unforced errors.

Gauff thus became the first American teenager to win the US Open since Serena Williams, then 17, in 

1999. When asked about "taking the torch" from the 23-time Grand Slam winner and the similarity between their tennis careers, Gauff told ESPN, "Serena is Serena. She's the greatest of all time... I'd hope to do half of what she did. But I'm not going to compare myself to her. She's some one that I look up to."

Now, Gauff's big win has left tennis fans wondering: When's her next Grand Slam? That's no easy task. Two of the past four US Open women's champions were teenagers at the time, Canada's Bianca Andreescu in 2019 and the UK's Emma Raducanu in 2021, and neither has come close to repeating their success yet. But one thing about Gauff is certain — that at just 19 years old, the sky's the limit.