Growing Up in Australia

    Since 2004, Australia has been holding its largest study of children's health ever. This project, “Growing Up in Australia,” is following two groups of children from early childhood until they become adults. The project is being supported by the Australian government and involves hundreds of researchers visiting the homes of 10,000 children. Researchers hope to find a relationship between the children's future behavior and their health, education, and family environments.

    When the study began, the first group of children was aged 0-1, while the second group was aged 4-5. In order to make sure that children from every kind of environment and background were chosen, the study found volunteers from each area. Some volunteers are in the countryside, while others are in big cities. The volunteers for both groups were chosen from a variety of different social and ethnic (种族) backgrounds.

    The researchers visit the participants' (参与者) homes every two years to gather information. They interview the parents about parenting styles and the child's daily activities. They also take measurements of the children's health and how well the children perform in school. The researchers also collect information such as the income of the child's family, the school the child attends, and the kind of community (社区) in which the child lives. They plan to use the information to improve children's lives.

    Researchers have already begun to publish some interesting results. For instance, after examining information from the second group of children when they were 10-11 years old, researchers found that children who spend a lot of time doing organized activities, such as music lessons or sports, have good control of their emotions and behavior. The study also found that they are able to complete their homework without their parents around. On the other hand, it found that children who watch a lot of television get upset easily and have worse behavior. The Australian government is now using this information to make better educational and health policies for Australian children.

    Our warming planet is expected to face serious water crisis（危机）in the coming decades — which means each nation's natural resource will be more important than ever.

    I am building a tiny house. Not a dollhouse, but a livable space with bed, kitchen, storage-everything you'd need to live.

Why did I decide to build a house? I hoped it would give me skills that really matter in life, such as using tools for construction. And in building the house, I would understand how much labor goes into a home and truly appreciate what I am living in.

    But this past year, life gave me a heavy hit: My father, one of my best friends and my tiny house construction partner, died in a traffic accident.

    This is where my enthusiasm conics from now: the desire to finish my house for my father. Because of this decision, I now have some life experiences that some adults don't have. I can relate not only to people who want to build a house, but also to people who have lost a parent. And to all of them, I can say that giving up is not a choice.

    Still, without the help of my friends and family. I would probably stop my project. My friend Luke came to help the week after my father died; he knew I needed to get my walls up. The guidance from fellow tiny house builders and their families has been helpful. Putting windows in is no easy. And installing(安装) electricity is not something you do in your dreams. Ten hours of stabbing (戳) your fingers with metal string and getting shocked a couple times is not ideal.

    Sometimes when people get a hard knock, they stay down. I didn't. I didn't only want to show that anyone can build their own house; I also wanted to show that when I was handed lemons. I not only made lemonade. I made a delicious lemon cake.

    You are going to read three competitions which offer holidays as prizes.

    Competition One

    Competition Two

    Competition Three

Sleep is essential for a person's well-being. Researchers have found that sleep loss increases a person's risk of developing serious medical conditions. Now, a new study has found that getting enough sleep is also the key to improving academic performance.

Jeffrey Grossman, who led the research, was not trying to find the correlation(相关性) between sleep and grades when he handed out a device to the students in his class. Instead, the professor hoped the popular wrist-worn electronic device, which tracks a person's activity 24/7, would show a connection between physical exercise and academic achievement.

As part of the research, a quarter of the participants chose a fitness class specially created for the study. After the school term ended, the researchers carefully analysed the data. Much to Grossman's surprise, they found no measurable difference in test performance between the group that had been physically active and the group that had not.

However, the study presented a surprising viewpoint in the journal Science of Learning. Going through the large amount of data, Grossman noticed an interesting trend(趋势) from the participants' sleep patterns. There was a straight-line relationship between the average amount of sleep and his/her grade in the exams.

Besides, it was not enough for students to just head to bed early the night before a test. Grossman says, "We've heard the phrase ‘Get a good night's sleep. You've got a big day tomorrow.' It turns out this does not relate at all to test performance. Instead, it's the sleep you get during the days when learning is happening that matters most."

The time when students went to bed each night was similarly important. Those who went to bed in the early hours of the morning performed poorly, even if the total sleep time was the same as a higher-performing student.

The research does not prove that sleep is the only component that helps improve academic performance. However, Grossman says the results are a strong indication that sleep really matters. Who knew getting A's just required some extra ZZZ's?

Bergl doesn't consider himself the next Thomas Edison, He's just a man loving animals, Africa and adventure, Yet, Bergl might have invented a tool as great as the light bulb (灯泡) ―a tool that uses modern-day technology to solve an almost prehistoric (史前) problem.

The tool is called the SMART. It is designed to be waterproof (防水的) , shockproof and poacher (偷猎者) proof. Bergl worked with worldwide wildlife groups to develop it in 2011. Since then it has been seen in more than 55 countries where poachers have forced the best-known but most endangered animals to nearly die out .

SMART works as a very simple smart phone―it lets the user record what they see, like animal sightings. changes in animals and illegal activities If a park ranger (管理员) sees something that is very important, that information can be sent to the cloud (云) and sent out to the base camp so they can take action and stop the killing 

Bergl and his workmates travel to African wildlife reserves now and then They teach park rangers in some of the most remote countries how to use SMART. "SMART makes collection of information easier It allows us to pay attention to the things that really important. according to what the information is telling an,"Aid Skim Young, manager of the Etosha National park in Namibia, "thanks to SMART, most of Africa's endangered animals seem to be coming back." 

Bergl never plans to make money from his small but great invention. SMART is free and doesn't even have a patents(专利).