Can you imagine printing food? Some scientists are trying to revolutionize the dining experience by doing this. They hope that having a 3D printer in the kitchen will become as commonplace as the microwave. Scientists say that they are easy to use:you simply have to select a recipe and put the raw food "inks" into the printer. You can also change the instructions to make the food exactly how you want it. This means that it would be very quick and easy to create tasty and nutritious meals.

    They say that if people used 3D printers to create meals there would be less need for traditional growing, transporting and packaging processes as food production would be a lot easier. For example, alternative ingredients (原料) such as proteins from insects could be changed into tasty products. And as is known,those traditional activities are not beneficial to our surroundings.

    This technology could also help people who suffer from dysphagia (a swallowing disorder).The patients could program the printer and softer versions would be made so that they would not have trouble swallowing them.

    However,some people think that using 3D-printed foods would be a disaster. It could take away many jobs,including those for growing,transporting and packaging food. Imagine a world where there was no need for farming or growing crops and the same tastes could be printed from a raw "food ink". Likewise, traditional cafes and restaurants might lose business. Also, there are concerns about the nutritional value of printed food:is it really possible to get the nutrients we need from food-based inks?

    What's more, cooking and eating together with family and friends has long been a traditional and enjoyable activity. It is hard to imagine a world where the pastime of cooking is dead and meals can be created at the touch of a button.

    I was wandering around the Albuquerque International Support airport. My flight had been delayed and I heard an announcement: “If anyone near Gate A-4 understands Arabic（阿拉伯语）, please come to the gate immediately.” Gate A-4 was my own gate. I went there.

    An older woman was crumpled（蜷缩成一团的）on the floor, crying loud. In her traditional Palestinian dress, she reminded me of my grandmother.

    “Talk to her,” urged the flight agent. “We told her the flight was going to be late, and she did this.”

    I bent over to put my arm around the woman and spoke uncertainly. “Shu-dow-a, shu-bid-uck, habibti? Stanischway, min fadlick, shu-bit-se-wee?” She stopped crying. She thought the flight had been called off. She needed to be in El Paso for a medical treatment the next day. I said, “You'll get there, just late. Who is picking you up? Let's call him.”

    We called her son. In English, I told him that I would stay with his mother until we got on the plane. She talked with him. Then we called her other sons just for fun. Then we called my dad and they spoke for a while in Arabic and found out that they had several shared friends. After that, I called some Palestinian poets I knew and let them chat with her.

She was, laughing a lot but then, patting my knee and answering questions. She pulled a bag of homemade cookies filled with dates and nuts and topped with sugar from her bag and offered them to the people at the gate. To my amazement, no one declined. It was like a sacrament（圣餐）. The traveler from Argentina, the mom from California, the lovely woman from Laredo— We were all smiling, covered with the same sugar.

    I looked around the gate and thought. This is the world I want to live in, one with no anxiety. This can still happen anywhere, I thought. Not everything is lost.

    No fashion event attracts the world quite like the Victoria's Secret Fashion Show. In November 2017, more than 55 models descended upon Shanghai for the lingerie（内衣）maker's first show in Asia. Victoria's Secret cast eight Chinese models for the show, including Liu Wen, double the number that walked in 2016.

    Liu Wen, a Chinese fashion model, started her modeline career in 2005 after competing in the reality TV show New Silk Road World Model Contest. Although she did not win the competition, Liu soon began working full-time as a model, eventually becoming a national success story after working with fashion magazines like Vogue and Harper's Bazaar that are popular in China, In 2007, she was signed to the Marilyn agency, and has since walked for Burberry. Givenchy, Chanel, Tom Ford, Proenza Schooler and Tommy Hilfiger.

    Liu walked a record 74 shows in New York, London, Milan and Paris for the autumn/ winter 2009 season, followed by 70 for spring/summer 2010, making her the second most-booked catwalk model that year. She has also achieved 15 international Vogue covers to date.

    In 2009, Liu became the first woman of Chinese origin to walk in the Victoria's Secret Fashion Show. Liu also participated in the 2010—2012 shows. She returned to the Victoria's Secret runway again in 2016.

    In the past, Liu has said that after modeling she might enjoy working as a stylist or, were the opportunity to arise, as an actress-she feels that modeling and acting have much in common, but for now she enjoys modeling and working in the fashion industry. She has stated that she knows that, as a career choice, working as a fashion designer or stylist would be “very hard work”, but she is now more seriously considering becoming a stylist because she would like “to share her fashion style -tomboyish, vintage, and comfortable-with the world”.

Senses That Work Together

    When we think about how our senses work, we usually imagine them operating separately: you sniff a flower, and the smell is delivered uninterrupted from nose to brain. However, it's more complex than that. Most evidence for cross modal perception (知觉) comes from studies into sound and vision (视觉). But research that shows other senses crossing over is coming out all the time, and it seems that even sound and smell sometimes form an unlikely pairing.

    When New York researchers, Daniel Wesson and Donald Wilson, tried to find out the truth about a "mysterious” area of the brain called the olfactory tubercle, they had to deal with this fact. Originally, they only intended to measure how olfactory tubercle cells in mice responded to smell. But during testing, Wesson noticed that every time he put his coffee cup down, the mouse cells jumped in activity. In fact, the olfactory tubercle is well-placed to receive both smell and sound information from the outside world. Later they found that among separate cells, most responded to a smell but a significant number were also active when a sound was made. Some cells even behaved differently when smell and sound were presented together, by increasing or decreasing their activity.

    Of course, mice aren't people, so research team has been carrying out further experiments. They pulled together a group of people and gave them various drinks to smell. Participants were asked to sniff the drinks, and then match them to appropriate musical instruments and produce the notes at different levels. The results were interesting: piano was regularly paired with fruity fragrances; strong smells sounded like the instruments that are made of metal.

    Further research found that listening to different sounds can change your perceptions. Studying taste this time, the team ordered some special toffee (太妃糖) and put together “soundscapes” corresponding to bitterness and sweetness. Participants tasted similar pieces of toffee while listening to each soundscape, and found the toffee more bitter or sweeter, depending on which soundrack they were listening to.

    Studies like this are helping scientists correctly describe our understanding of the senses, and how the brain combines them with its advantage. The consequences are worth considering. Could we see musicians work together with chefs to produce sound-improved food and drink? Will you be ordering a coffee with a soundrack to bring out your favorite smell? Come to think of it, that could be one thing you hope coffee shop chains don't get round to.

    With smart technology increasingly influencing all aspects of our lives, it is only a matter of time before someone invents “smart” shoes—ones that can be made based on personal needs. Called “ShiftWear”, the sneakers are the brainchild of a team of businessmen, and engineers led by New York-based designer David Coel.

    The adaptable shoes can be customized by using a smart phone app. Shoe owners will have the option of selecting a design from a variety of HD pattern by famous artists or creating one themselves. The company's founders imagine a marketplace where artists can not only share but also sell their designs to others. Despite being electronic, the designs are clearly visible even in the brightest sunlight. What's even cooler is that by switching on a backlight, users can even show off their designs in the dark!

    According to Coel, the sneakers will keep their charge “forever” if only images are displayed. Though they will need periodic recharging, active users have nothing to worry about. That's because the shoes are equipped with special walk-n-charge technology that powers the shoes—with every step. Inactive users also have options of charging the sneakers without using wires.

    The bottom part of the shoes is covered with Kevler fibers, a kind of strong material, reducing normal wear and tear. Even better? They are completely waterproof (not let water through) and can even be thrown into an ordinary laundry machine for a quick wash! The company predicts that the shoes will range the price from $150 to $1000 depending on the size of the E-panels where the designs are displayed.

    This is not the first time that electronics and shoes have combined. Lithuania-based iShuh Technology has come up with a similar concept that connects e-reader panels to a smart phone app via the Bluetooth. Whether these smart shoes become as popular as our smart devices remains to be seen, though they surely are attractive.

    Many kids help out around the house with chores such as emptying the dishwasher, putting laundry away, and taking out the trash. In exchange, some kids get allowances or other rewards such as extra computer time.

    But some people do not think that kids should get rewards for doing chores. Susie Walton, a parenting educator and family coach, believes that by rewarding kids, parents are sending a message that work isn't worth doing unless you get something in return. "Running any kind of household is a team effort, Susie said. "A home is a living space for everyone in the family. It's important for kids to see that we all have responsibilities in the house, and that families decide together how they want their home to look, and how they are going to keep it looking like everyone wants it to look."

    Other people believe that getting a cash allowance or other rewards motivates kids to do chores, and it also teaches them real world lessons about how we need to work to earn money. There are also new applications that give kids points and digital gifts that can be redeemed (兑取) either online or in the real world. With the ChoreMonster app, kids earn digital points by completing chores that they can turn in for real-life rewards such as extra Xbox time or a trip to the mall. "Our goal is to encourage kids to earn rewards," says Chris Bergman, founder of ChoreMonster. "Kids need positive reinforcement to help motivate them."

    What do you think? Should kids be rewarded for doing chores? Or should kids help out around their homes without getting anything in return?

    Write a 200-word response. Send it to tfkasks4you@timeforkids.com. Your response may be published in a future issue of Time For Kids. Please include your grade and contact information of your parent or teacher if you want your response to be published. The deadline for responding is February 18.