A new keyboard can tell whether you are its owner. The keyboard records information about the typing pattern（模式）and sends it to a computer program. The program then checks to see if the pattern matches the right user. If not, an alarm sounds, and the computer locks the typist out. It locks out everyone else, even if the person knows the password. What's more, this equipment needs no batteries. It collects all the energy it needs from your actions of typing. Besides, the keyboard is also self-cleaning and the keys are free of damage from water, oil and dirt.

The keys of the new keyboard are made of the same inexpensive plastic that might be found on any other standard keyboard. But instead of being smooth, the keys have millions of tiny plastic nanowires（纳米线）on their surface area, increasing the effective contact areas between the plastics and fingers. This guarantees that there's enough power to run the keyboard as someone types.

Liming Dai, a scientist, did not work on the new keyboard, but he thinks the design could be important in getting better performance from a variety of equipment. "It could also be applied to a touch screen, for example, "Dai says. " Then smart phones and notepads could collect energy from someone's actions of typing or drawing. "

"Future work might make the keyboard even more useful, "Dai adds. " A later design might build tiny capacitors onto the nanowires, "he suggests. Capacitors are little devices that temporarily store electric charge. Those might then be LEDs to light a keyboard in the dark.

Zhonglin Wang is a co-designer of the new keyboard. His team has built a working model of the keyboard. "If a company decides to fund（资助）its production, this keyboard could be in stores in as few as two years, "says Wang.

   Driverless technology will soon enter another major global industry: shipping. Several companies recently announced plans to launch self-sailing ships to improve safety and efficiency.

Kongsberg developed the ship's electrical technology and autonomous control systems. The ship is fully electric to reduce air pollution. It is designed to carry goods containers normally transported by truck. This means the ship will also improve road safety by replacing about 40, 000 truck trips a year. The company plans to operate the ships by far-away control beginning sometime next year. By 2020, the ships should be loading and sailing themselves. While Yara's ships will be limited to Norway at first, the company plans to greatly expand its autonomous shipping operations in the coming years.

Another company putting a high priority（优先）to self-sailing ships is the world's largest mining company, Australia's BHP Billiton. The company's Vice President of Freight, Rashpal Bhai, recently spoke about the technology in a website post. Bhatti believes automation will be one of the biggest changes for shipping in the future. He said, "Autonomous ships offer important opportunities to improve safety and provide more effective results to the supply chain of the sea. "He added that self-sailing ships could become a reality within the next decade.

Rolls-Royce, the British automobile and engine manufacturer（制造商）, is also developing unmanned（无人驾驶的）shipping technologies. Oskar Levander is the company's head of operations at sea. He said in a conference last year, "This is happening. It's not if, it's when. "

Levander said these autonomous ships could be controlled by far-away operators from anywhere. He added, "Because these ships will be designed to be unmanned, they can be built smaller, more efficient and environmentally friendly. "

   As an old saying goes, "Surround yourself with the people you want to be like. " 【小题1】 Here are four signs that you are surrounded by good friends who care about you but not just what you can do for them!

【小题2】

A good friend can tell when you need an ear, or just take time and talk something out. More importantly, they help you determine where you have good ideas and where they think you' re wrong.

Your friends care about you.

【小题3】They also take time to be there when you need them, and want to help you be the best person you can be.

You feel like your friends have your best interests at heart.

You may not always agree with what your friends say or their perceptions of a situation. 【小题4】 This can be a tricky line to walk, and sometimes you should ignore the advice of others. Nevertheless, a good friend will be less worried about sparing your feelings than looking out for you.

Your friends check in on you.

Good friends care about the people close to them. If they don't hear from you periodically, they will pick up the phone or even send an email, "Dude, where you at？Everything okay？"This doesn't mean they constantly worry about you, because sometimes people get sick or busy and life happens. 【小题5】

As everyone knows it, people can get many information through the Internet. Meanwhile, people are also clear aware of its disadvantages, and some children don't realize they sometimes make friends with bad people online. In my opinion, people can use the Internet make friends, download useful materials and go shopping online. However, there were also many disadvantages of the Internet. If you can't use it correctly, it may be harmful for you. In junior middle school, I was once crazy about play online games and I couldn't control myself. As the result, my study results were getting from bad to worse. Besides, if you believe whichever your friends say online, you will be cheated by them some day.