When her five daughters were young, Helene An always told them that there was strength in unity (团结). To show this, she held up one chopstick, representing oneperson. Then she easily broke it into two pieces. Next, she tied several chopsticks together, representing a family. She showed the girls it was hard to break the tied chopsticks. This lesson about family unity stayed with the daughters as they grew up.

    Helene An and her family own a large restaurant business in California. However, when Helene and her husband Danny left their home in Vietnam in 1975, they didn't have much money. They moved their family to San Francisco. There they joined Danny's mother, Diana, who owned a small Italian sandwich shop. Soon afterwards, Helene and Diana changed the sandwich shop into a small Vietnamese restaurant. The five daughters helped in the restaurant when they were young. However, Helene did not want her daughters to always work in the family business because she thought it was too hard.

    Eventually the girls all graduated from college and went away to work for themselves, but one by one, the daughters returned to work in the family business. They opened new restaurants in San Francisco and Los Angeles. Even though family members sometimes disagreed with each other, they worked together to make the business successful. Daughter Elisabeth explains, "Our mother taught us that to succeed we must have unity, and to have unity we must have peace. Without the strength of the family, there is no business."

    Their expanding business became a large corporation in 1996, with three generations of Ans working together. Now the Ans' corporation makes more than $20 million each year. Although they began with a small restaurant, they had big dreams, and they worked together. Now they are a big success.

    You can't always predict a heavy rain or remember your umbrella. But designer Mikhail Belyaev 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 with a built-in electric motor which can open or close the umbrella on demand. Sensors（传感器）first ensure that it starts raining and the motors open up in response to their sensors and then people can protect themselves from the rain under the canopies.

    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 lightning strike. Each lampbrella would offer enough shelter for several people. Being installed（安装）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 his creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

    Emmoni Lopez used to take dance lessons while her older brothers wrestled – but it turned out that she liked wrestling better.

    Her mom wasn't surprised when Lopez told her she liked wrestling more than dance, and three years after Lopez took up the sport, she enjoys watching her daughter wrestle. Still, when a coach first asked Lopez to join his program, her mom hesitated– she never thought her daughter would want to be a wrestler.

    Lopez is among a growing number of girls who are taking up wrestling. Officials with youth organizations in Chicago and the Illinois Kids Wrestling Federation (IKWF) said they've seen the number of girls participating in the sport take off in recent years.

In Lopez's program, about half of the students participating in the organization's free youth wrestling camp this summer are girls, coach Frankie Zepeda said.

    Many of the girls Zepeda sees become interested in wrestling through their brothers, he said.

    “They probably just learn to … fight back,” he said.

    One of those was Yamilet Aguirre. She took up wrestling because she was bored just watching her brother wrestle, she said.

    “I can have fun doing it,” she said. “And I can prove girls are just as strong as boys are.”

    Though girls have competed on high school wrestling teams in Illinois for years, coaches and female wrestlers said there weren't many participating a decade ago.

    “It's really picked up over the last few years,” said Jim Considine, president of the IKWF.

    Between the 2015-16 and 2017-18 seasons, the number of girls registered with IKWF grew from 363 to 503, and more of the organization's events are featuring a girls-only division. Girls and boys wrestle together during the season through IKWF, but there's a girls-only championship at the end of the year.

    And by adding female wrestling programs, colleges are giving girls and young women another option.

    “Female wrestling isn't something unacceptable anymore,” Considine said. “Things have happened so quickly. Ten years ago, you'd never have dreamed of doing this.”

    About ten men in every hundred suffer from color blindness in some way. Women are luckier; only about one in two hundred is affected in this matter. Perhaps, after all, it is safer to be driven by a woman!

    There are different forms of color blindness. In some cases a man may not be able to see deep red. He may think that red, orange and yellow are all shadows of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green — a strange world indeed.

    Color blindness in human beings is a strange thing to explain. In a single eye there are millions of very small things called "cones". These help us to see in a bright light and to tell difference between colors. There are also millions of "rods", but these are used for seeing when it is near dark. They show us shape but no color.

    Some insects have favorite colors. Mosquitoes prefer blue to yellow. A red light will not attract insects, but a blue lamp will. In a similar way human beings also have favorite colors. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colors by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible colors around us.

    During my third year of university, I spent six months studying in Rio de Janeiro, Brazil. Many are worried about travelling to Rio but I promise, it is worth a visit. Now I want to share my top recommendations (推荐) for experiencing Rio less as a tourist but more like a native Brazilian.

    Pedra Bonita

    Rio is full of hiking routes, and some Brazilians love to spend an afternoon hiking. My favorite route of all has to be Pedra Bonita. Pedra Bonita involves a steep climb of about an hour through tall trees, and I admit it is difficult in Rio's heat, but you are rewarded at the top with a wonderful view of the city, standing high above the green landscape and blue sea below.

    Mureta da Urca

    One thing you are sure to find in Rio is an amazing sunset, but a lot of the best spots tend to be full of tourists. In my opinion, Mureta da Urca is the most relaxing place to watch the sun set over the silver sea, with the figure of Christ the Redeemer standing tall in the background.

    Pedra do Sal

    Pedra do Sal is a historical area in the city centre and on Monday nights it is brought to life by the sound of samba. Hundreds of people gather in the street, food and drink stalls are set up and it becomes a giant street party with everyone enjoying the happy sound of live samba!

    Picanha

    If there were one Brazilian food I could bring back to the UK, it would be picanha. It is the tastiest cut of steak I have ever tasted, served alongside rice and beans.

    Dogs certainly need to bark (犬吠) every now and then, but if your neighbor's dog is getting in the way of your daily life, you need to do something.

    "Before you take action, you should record the dates and times that the barking happens to find out any patterns," says Schweitzer, who is a dog owner. You might notice the barking only happens when the owners are at work, or during thunderstorms.

    After two to three weeks of observing (观察), go to your neighbors with the facts. Wait for a time when the barking is over. "Since you're trying to keep a good relationship, you can't go when you're angry and upset," says Schweitzer. Besides, your neighbors might not even realize the barks are a problem, especially if the worst barking happens when they're not at home.

    Politely explain the times when the barking gets bad, and then suggest a way of solving the problem. Ask if the dog can stay inside during storms, or offer a dog training class.

    Making friends with the dog could help you gain some peace and quiet. If your neighbors introduce you to their dog, you should give the dog a treat. "If they become more comfortable seeing you, they're less likely to bark when they see you or when they're in the backyard，" says Schweitzer.

    Whatever you do, don't talk with your other neighbors about the problem or start a petition (诉状) to get the dog to quiet down. "Those make people feel angry," says Schweitzer. "That's when things escalate."

    If weeks go by and you still aren't seeing a difference, follow up with a note. Tie a dog treat on the note to build trust with your neighbors, and make a copy before dropping it off. That way, you'll have evidence (证据) that you've discussed it before and followed up politely if you need to bring in a third party, says Schweitzer.