What can technology do to make your world better?Three young people are starting new businesses to answer that question.

Mateusz Mach

    Eighteen-year-old Mateusz Mach was the youngest person in Poland to receive money from investors to expand his company.He started Five,a mobile messaging application,or app,for deaf people.The app lets deaf people create their own hand signs to communicate with friends.The app now has more than 10,000 deaf users.And Mach thinks there will be about 150,000 more deaf users in the U.S. next year.There are many different sign languages in various parts of the world.Mach will be working with the United Nations in New York.He says,"I love to create.And I think that the creation of things will be my passion to the end of my life."

    William Zhou

    William Zhou is the co-founder and leader of Chalk.com.The education software company helps teachers from the kindergarten level t0 12th grade,or the end of secondary school.Zhou was born in Beijing,China,grew up in the Canadian city of Vancouver and founded his first company when he was still in high school.Zhou sold the company when he was studying computer science at Canada's University of Waterloo.But he strongly wanted to make a change in education,From his dorm room,Zhou created Chalk.It is a group of programs that supports individual teaching and learning.Based in Canada,Chalk is now used in 20,000 schools by more than 100,000 users worldwide. Zhou says building startups is a difficult process because it could last years."It's only worth it if you find something you truly care about—something you're passionate about.Otherwise,you may just end up crashing."

    George Mtemaharji

    George Mtemahanji was born in the African country of Tanzania and moved with his family to Italy in 2002, where he attended the Technical Institute of Alfredo Ferrari in Maranello.There he learned about renewable energy and began thinking that solar energy would be easier to use in Africa than in Europe.After graduation,he returned to Tanzania in 2014 to start his own solar energy company—Sun Sweet Solar—in partnership with his friend Manuel Rolando.He explains that he could not understand why,in a place with bright sunshine,"more than 90 percent of people had no access to electricity.So when I returned to Italy I spoke with Manuel on the huge electricity demand in Tanzania and to the possibility to open a business there."Sun Sweet Solar found early success in rural areas of Tanzania.Since then,the company has been expanding.He hopes to create jobs and help build his country in the process.He understands the process will take time."But I think we are on the right path."

    People are always looking for lost cities and occasionally one is found: Borobudur in Indonesia, for example. But perhaps some of the places people look for never existed — or did they? Here are just a few famous mythical (传说中的) cities.

    El Dorado

    El Dorado is a story that began in 1537, when Spanish explorers found the Muisca people in the mountains of what is now Colombia. They heard the story of a man who covered himself with gold and dived into a lake. Then people began to talk of El Dorado — 'the golden man'. Soon people started to think of El Dorado as a place, too — a city of gold and amazing riches. Nowadays, the name 'El Dorado' is still used to mean 'a place where you can get rich quickly'.

    Atlantis

    There was once an island in the middle of the Atlantic Ocean. It was the mythical island of Atlantis. The people of the island were very rich, thanks to the natural resources (资源) on their island. For hundreds of years, they lived simple lives. But slowly they began to change. They started to want power. So the gods decided to destroy Atlantis. Suddenly, the island and its people were swallowed (淹没) by the sea and were never seen again.

    Shambhala

    In Tibetan Buddhist tradition, Shambhala is a mystical (神秘的) country that is hidden somewhere behind the Himalayas. Shambhala is a word from an old language that means 'place of peace' or 'place of happiness'. It is said that there is no war in Shambhala, and in the future, when the world is full of war, a huge army will come out of Shambhala, destroy the world's bad rulers, and start a new Golden Age. Some people say this will happen in 2424.

    Important Self-Management Tips All Students Should Know

Being a student, especially in the later years of high school and the college years, can be a time when you are finally given the independence that you dreamed of. {#blank#}1{#/blank#}. If you are looking for some guidance on how best to manage yourself, then here are some of the best self-management tips all students should know.

    Sleep

    First and foremost, you need to be getting a good night's sleep as often as you can. After all, your brain needs just as much rest as any other part to operate at its full ability,  {#blank#}2{#/blank#} .

    Calendar

    Buy a calendar and make notes of every single deadline (截止日期) and class that you have. {#blank#}3{#/blank#}. One of the worst things that could happen is to complete some work but hand it in a day too late.

    {#blank#}4{#/blank#}

    Make the effort to balance your use of certain technology and social media. They are the number one reason for procrastination (拖延症) among today's student body, and training yourself to stay away when you are writing your work can be really helpful.

    Study Groups

    {#blank#}5{#/blank#}, then make the most of all the different study groups that your school or college offers. There you will be able to work alongside people who are active and their attitude will encourage you into action and make you much more productive.

A. Technology Balance

B. Never Use Technology

C. so sleep is also important for the old

D. or it is not going to serve you in the best way that it can

E. But you haven't learned exactly how to manage your life

F. If you are the kind of student who finds it nearly impossible to be productive alone

G. This way you will always know where you have to be and when you have to be there

    Some insects, such as butterflies and ladybugs, are quite beautiful. But, did you know that many bugs are also edible and are filled with protein?

    Aletheia Price knows this—and a lot more—about bugs. She also thinks you should try eating some. If you visit the website www.eatbug.com, you will find all kinds of information about edible insects. Most of it was written by Aletheia Price when she was fifteen years old. Aletheia started eating bugs at the age of thirteen. Before long, she found that she really enjoyed some of them. She also became interested in finding out more about which kinds of bugs could be eaten and how to cook them.

    According to Aletheia, there are at least 1,462 kinds of edible insects. (Doesn't that make you wonder who tried all of them and decided they were edible?) Some of her favorite dishes include mealworm chocolate chip cookies, ant tacos(玉米卷), and chocolate-covered crickets(蟋蟀). On her website she has recipes for insect entrees(开胃菜) and some helpful tips. For example, when preparing crickets, it is best to remove their legs before cooking, for the legs tend to get stuck in your teeth. She also offers information for anyone who wants to raise bugs for food.

    Aletheia realizes that eating bugs is not for everyone. But, if you think about it, you have to admit that eating bugs might be a good idea. There are billions and billions of bugs in this world. If we could get used to eating them, we would have plenty of food for everyone.

    The key to losing weight is to understand what really motivates you. Have you ever been excited about losing a few pounds? {#blank#}1{#/blank#}And to help you keep your weight under control, you need some strategies.

    Ask questions. When you're researching different dieting products and plans or even talking to a doctor about diets, ask as many questions as you can. {#blank#}2{#/blank#}Ask questions like: Do I have to purchase special meals or supplements? Does the program include a part to help me maintain my weight loss?

    Get real.{#blank#}3{#/blank#}Don't burden yourself with unrealistic expectations. Remember, large amounts of weight loss are not realistic and are most likely not safe or healthy. Talk with your health care professional to determine a healthy weight goal.

    {#blank#}4{#/blank#}To maintain your weight, you must balance your intake of calories with the energy you burn. Just 30 minutes of fast walking in most days can take about 10 pounds off your weight each year.

    Weigh yourself weekly. It's important to track your weight on any diet or weight loss plan, but don't get on the scale every day. Weighing daily won't show you the big picture.{#blank#}5{#/blank#}

A. Stay balanced.

B. Once a week is fine.

C. Stick with your healthy eating plan.

D. Losing one to two pounds a week is a realistic goal.

E. Being well informed will help you choose the best diet for you.

F. Regular weight check-ins will show you your progress over time.

G. If so, you must find a way to turn that excitement into determination.

Recycled, reused and renewable textiles（纺织品）only go so far in solving the fast-fashion crisis, writes Alexandra Carlton. The answer may lie in consumption.

Australia is the world's second-largest consumer of clothing, generating 800,000 tonnes of textile waste yearly. Individuals consume about 27 kilograms of new clothes annually and cast 23 kilograms of waste. Globally, the situation is even more severe, with an estimated 92million tonnes of clothing waste produced each year. This equates to a truckload of clothes entering landfills every second.

If you want to stop our unwanted clothes from jamming the planet, you'd assume that reusing and recycling would lead the discussion. However, full clothes recycling—breaking clothes down to their base fibres to create new ones—is no simple task. Clothes consist of various fibres, fasteners, and decorations that traditionally require painstaking manual（手工的）separation. Yet, innovation is underway, such as the Swedish large-scale sorting facility Siptex, where textiles can be sorted by color and material using infrared（红外线）technology.

Brands like Adelaide's Autark focus on minimizing output. "I keep my collections tightly designed and production numbers slim," says designer Sophia McMahon. Sometimes this means she doesn't have the exact clothes someone wants in store, but customers are patient while she makes items to order because they understand her brand's essence.

Startups like AirRobe are giving clothes a second life and could be part of the solution. The clothing resale market is currently worth 49 billion and is expected to reach 103 billion by 2025. AirRobe lets customers add new purchases to their digital wardrobe so they can be resold later without uploading photos or descriptions. "The ‘re-economy'—the reuse and recycle market sector—will be a real opportunity for us," says Erica Berchtold, CEO of The Iconic.

Researchers Samantha Sharpe and Taylor Brydges from the University of Technology Sydney advocate a widespread shift among consumers towards buying fewer, higher-quality clothes besides these innovations.