1 . Blind people have long desired for brightness, but scientists don’t have the technology. To bring that one step closer to reality, Zhiyong Fan, a materials scientist of the Hong Kong University of Science and Technology, developed a new artificial eye recently. The device, which is about as sensitive to light and has sharper vision and a faster reaction time than a real eyeball, may outperform human eyes.

The human eye owes its wide field of view and clear eyesight to the retina (视网膜) — an area at the back of the eyeball covered in light-detecting cells. The design for a new artificial eye is based on the structure of the human eye and uses a friendly light-sensitive material. At the back of the eyeball, an artificial retina is lined with Nan scale light sensors (纳米级光感器). Those sensors measure light that passes through the lens (晶状体) at the front of the eye. Wires attached to the back of the retina send signals from those sensors to the processor, similar to the way nerve networks connect the eyeball to the brain.

“In the future, we can use this to replace damaged human eyes,” says the lead designer. In theory, this artificial eye could see more clearly than the human eye, because the artificial retina contains about 460 million light sensors per square centimeter while a real retina has about 10 million light-detecting cells per square centimeter. Besides, the artificial eyeball records changes in lighting faster than human eyes can — within about 30 to 40 milliseconds, rather than 40 to 150 milliseconds. Although its 100-degree field of view isn’t as broad as the150 degrees a human eye can take in, the device can see as well as the human eye in poor light.

Hongrui Jiang, an electrical engineer at the University of Wisconsin, though, thinks engineers need a much more practical and efficient way to produce vast series of tiny wires on the back of the artificial eyeball to give it superhuman sight, which is super hard to achieve.

2 . India, as a country with plenty of resorts (旅游胜地), is popular with different kinds of travelers. If you’re planning to visit the country, the followings are the places that may interest you.

Delhi is a perfect place for those who love history, and there are plenty of attractions here to keep tourists of all interests entertained. It’s often the first city that many tourists visit on a trip around India. There are many resorts including India Gate, the Lotus Temple, Qutub Minar, and Humayun’s Tomb.

Agra is most well known for the Taj Mahal, which draws a large number of tourists to the city. Built in the 1600s, the Taj Mahal is still standing strong today and is admired by tourists as an important part of India’s heritage (遗产).

Kashmir is one of the most beautiful cities in India. With flower gardens, amazing water-falls, and snow-topped peaks, it’s a simply unforgettable place that tourists want to return to time and time again. Kashmir is especially popular with honeymooners and loved-up couples, because a lot of romantic trips are on sale in Kashmir.

Though Goa is small in size, it’s one of the top resorts for young tourists and those who love taking beach vacations. The golden sands and coconut palm trees are the charm (吸引力) here, and the sunrises and sunsets are so gorgeous that you’ll never forget them.

3 . How to Make Friends

Friendship is a very important human relationship and everyone needs good friends. Good friendship has many benefits. It offers companionship, improves self-worth and promotes good health. There are times in our lives such as when we have recently moved into a new town, or changed our jobs or schools. Such changes often leave us without a friend.     1     But for many of us the process is difficult and requires courage. Below are some helpful suggestions on how to make and keep friends.

1. Associate with others.

The first step to making friends is associating with other people. You can go to public places to meet new people. Besides, you will need to make yourself known by becoming an active member of such places.

2. Start a conversation.

Starting a conversation is the second most important step in making new friends.     2     You can always start the conversation. Being able to make small talk is a very useful skill in relating with other people.

3.     3    

Choosing friends with common interests is important in building friendship as these interests would always bring you and your friend together. Hanging out will always be a pleasant experience.

4. Let it grow.

It is a good thing to stay in touch. However, try not to press your new friend with calls, messages or visits as this would likely wear him or her out and finally you may lose your friend.     4     The best friendships are the ones that grow naturally.

5. Enjoy your friendship.

The best way to enjoy your friendship is to allow your friends to be themselves.     5     Try not to change them from who they are to what you want them to be. Become the kind of friend you will want your friend to be to you.

7 . Bullying(欺凌) can happen to anyone. A great many children around the world are bullied every year, but there are things that can be done to help.

What is bullying?

Bullying is when someone makes you feel bad or hurts you again and again. Bullying can happen at school, out of school and online. Bullying includes:

·calling people mean(恶意的)names

·laughing at people

·telling lies about people

·taking someone’s things without permission

·not letting someone play in a group

·hitting people

What is cyberbullying?

Cyberbullying includes:

·sending bad messages online

·sharing photos online without permission

·not letting someone be part of an online group

·spreading lies online

What can you do?

If someone is not kind to you, tell an adult that you know and like. For example, talk to a parent or a teacher.

If you get bad messages, don’t reply. You should save them and give them to your teacher, your family, or the police. Ask an adult for help. Don’t share anything before you make sure it is true. That will help stop the cyberbullying.

Talk to your parent or teacher or an adult if you see bullying or if you are worried about a friend.

Say sorry if you are not kind to someone. You can write a message or talk to the person.

And always remember: think about how to be kind in the future.

For more information, click(点击) here and visit our home page at www.kidsword.com.

A 63-year-old Chinese grandpa’s     1    (tradition) carpentry (木工) skills are delighting tens of millions of viewers online as he creates woodwork without glue, screws or nails.

The Chinese master carpenter, Wang Dewen, well known as “Granpa Amu” on YouTube, has been called as the modern Lu Ban,     2     famous Chinese structural engineer during the Zhou Dynasty, thanks     3     his vast carpentry knowledge. His most popular video,     4     shows him making a fantastic wooden arch bridge, became popular on the platform,    5    (eventual) gaining more than 42 million views.

Grandpa Amu follows an ancient Chinese mortise and tenon (榫卯) technique, which     6    (mean) no nails or glue are involved in the entire process of building the arch bridge.

Grandpa Amu has also made several wooden toys for his grandson     7    (use) the same technique. He created a folding stool(凳子), which looked like the China pavilion (中国馆) from the 2010 Shanghai Expo. “A block of wood transforms into a stool. Genius,” a YouTube user named Rey Rey commented under the video.

Among all the     8    (item), a walking Peppa Pig and a bubble blowing toy are     9    (he) grandson’s favorites.

So far, the master carpenter     10    (attract) over 1.18 million fans on YouTube. Grandpa Amu insists that he is not an internet superstar but just an ordinary farmer.