On the day the tornado hit, there was no indication that severe weather was on its way—the sky was blue and the sun bad been out. The first alert my husband,Jimmy,67,and I,65,got came around 9 p.m., from some scrolling text on the TV Jimmy was watching. He ran upstairs to find me in our third-floor bedroom, and we changed the channel from the presidential primary debate I had been watching to our local Pensacola, Florida, station.

    No sooner had we found coverage of the tornado than it was on top of us. It was the loudest thing I have ever heard. The bones of the house shook, and the power went out. The wind began to roar through the house, most likely through blown-out windows and the door to our garage. We had three flights of steps to navigate to get to the relative safety of the first floor, because the cupboard down there is underneath a brick staircase.

    I didn't know how or if we would make it down the steps. It felt as if there were no floor underneath me as the wind lifted me off my feet. I tried to move forward, but this intense pressure held me in place.

    As we reached the last flight of steps, our front door blew out. Pieces of glass that looked like crushed ice flew everywhere. Suddenly, a three-foot-long tree branch crashed into the door frame. It flew over our heads, missing us by inches. Had we been one step up, it would have hit us.

    By the time I reached the cupboard, the tornado had been over us for about a minute. Jimmy pushed me down to the cupboard floor, but he couldn't get inside himself because of the wind. I held Jimmy's arm and tried to bring Jimmy with it. My knees were full of glass, but at that moment, I felt no pain. If I had let go, Jimmy would have flown right out the back of the house and into the bay.

    All of a sudden, Jimmy lifted off his feet like people in tornadoes do in the movies. I thought he was gone. And then everything stopped. He landed on his feet. In those first quiet moments, I couldn't believe it was over, Jimmy said he'd go outside to check. "No,"I said. "Don't leave me. Don't leave me."

    Our neighbor says the storm lasted four minutes. In that time, four of the twelve town houses in our unit were completely destroyed. Of the houses left standing, ours suffered the most damage. Amazingly, none of us were severely injured.

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    One Moore Elementary school teacher is showing students the importance of communication through “shout-outs”. Third Grade Moore Elementary teacher Lindsey Winders said a shout-out is a compliment（称赞）that students can say or write down. “Like, 'hey I noticed you doing a really great job solving your math facts yesterday. I wanted to make sure you know that I saw you do that,” Winders said.

    Winders said she makes sure she is giving shout-outs to her students every day. “I might write them a sticky note, or write them a quick little note in their plans. I might just say it to them on their way into the classroom or on their way out of the classroom, but most importantly I try to do it every day,” Winders said.

    In addition to the compliments, Winders has the students greet each other every morning during morning meeting. She will have students give examples to the class of how to communicate in different settings. Third grade student Nayelli Moranchel said she has given at least six shout outs this year. “It makes me happy, because they always write something back,” Moranchel said.

    Recently, Winders took it one step further and wrote a personalized note on each of her students' desk. “In our classroom, sometimes it can be challenging for me to give a compliment or a shout out to each and every one of them in a way that feels equal and valuable at the same time. So I thought what's a better way to be able to do that than leaving a note on their desk that can stay for as long as they want it.” Winders said.

    Winders said it is encouraging when she sees her students copy the act, and give each other compliments without her guidance.

    Many years ago, people relied on the sun, the moon and stars to find their way around. Later, the compass was introduced. And now, we have satnav（卫星导航）systems to guide us. A satnav system uses groups of satellites to show the user's location. They send information to a receiver, such as a smartphone, to show us where we are.

    The earliest built satnav system is the Global Positioning Satellite System, which belongs to the US. Then there is Russia's Global Navigation Satellite system，the European Union's Galileo and China's own satellite navigation system, Beidou.

On October 18, 2017, an ARJ21-700 plane, which was the first domestically（国内地） produced jet equipped with the Beidou navigation system, successfully completed a test flight. The results showed the performance of the system developed by China matches that of similar systems produced abroad, according to the Commercial Aircraft Corporation of China.

    Since its introduction in 2000, the Beidou navigation system has been increasing numbers of applications linked to everyday life, from shared bikes to farming.

When it comes to shared bikes, smart locks that support Beidou chips offer more accurate positioning than others, making it easier to find a bike.

    Farmers can use Beidou-enabled tractors to plow（犁）the soil and use unmanned aircraft with Beidou to sow seeds, which can improve efficiency and make better use of resources. Beidou's farming applications have spread from Heilongjiang Province to Beijing, Liaoning, Shanxi, Hubei and other regions across China.

    With its many uses, the Beidou navigation system is even playing a big role in the Belt and Road Initiative（一带一路）. “To date, the Beidou system has covered most parts of the Asia-Pacific region, as well as countries along the Silk Road Economic Belt and the 21^st Century Maritime Silk Road,” said Yang Changfeng, chief designer of the Beidou system.

    Today, there are more than 20 Beidou satellites above our heads, and China plans to launch even more this year to expand the Beidou network to better serve the Belt and Road Initiative.

    “As Beidou expands its overseas reach, it will be increasingly popular in the logistics（物流） industry,” said Miao Qianjun, Secretary General of the navigation services association. “Ships, for example, can use it to position themselves while sailing across oceans to European countries, no longer limited to Southeast Asian regions in the near future.

    God has a way of allowing us to be in the right place at the right time.

    I was walking down a dark street late one evening when I heard screams coming from behind a clump of bushes (灌木). Alarmed, I slowed down to listen and soon realized that what I was hearing was the unmistakable sounds of a struggle: mad fighting and tearing of clothes.

    Only yards from where I stood a girl was being attacked. Should I get involved? I was worried about my own safety, and regretted having suddenly decided to take a new route home that night. What if I became another victim? Shouldn't I just run to the nearest phone and call the police?

    The girl's cries were growing weaker. I knew I had to act at once. How could I walk away from this? I finally made up my mind. I could not turn my back on the fate of this unknown girl, even if it meant risking my own life.

    I am not a brave man, nor am I physically strong. I didn't know where I got the courage and strength, but once I had decided to help the girl, I became strangely different. I ran behind the bushes and pulled the attacker off the girl. Struggling, we fell to the ground, where we wrestled for a few minutes until the attacker jumped up and escaped.

    Out of breath, I stood up and approached the girl, who was behind a tree, sobbing. Not wanting to frighten her further, I at first spoke to her from a distance. "It's okay," I said softly. "The man has run away. You're safe now." There was a long pause and then I heard the words, spoken in wonder, in amazement. "Dad, is that you?" And then, from behind the tree, out stepped my youngest daughter, Katherine.

    People who sleep fewer than six hours a night are more likely to die early, researchers in University of Warwick have found in a recent study. They discovered that people who slept for less than six hours each night were 12% more likely to die before the age of 65 than those who slept the recommended six to eight hours a night.

    The researchers pointed out that previous studies had shown that the lack of sleep was associated with problems like heart disease and high blood pressure. However, the researchers also found that sleeping too much was linked to an early death. Those who slept for more than nine hours a night were 30% more likely to die early, as an article in the latest Sleep suggested. That directly contradicts another passage in the same journal last month suggesting that people who slept for ten hours or longer a night were more likely to live to 100. This was thought to be because people who lived into extreme old age were healthier and therefore slept better.

    However, the authors of the latest research contradicted this and suggested that long sleep was a sign of underlying illnesses such as depression and low levels of physical activity. Professor Francesco Cappuccio at the University of Warwick said: "While short sleep may represent a cause of ill-health, long sleep is believed to represent more an indicator of ill-health."

    He also mentioned: "Modern society has seen a gradual reduction in the average amount of sleep people take, and this pattern is more common among full-time workers, suggesting that it may be due to social pressures for longer working hours. On the other hand, the worsening of our health is often accompanied by an extension of our sleeping time."

    "Consistently sleeping six to eight hours per night may be good for health. However, whether to achieve the goal depends on various factors such as the environment as well as measures of public health aimed at favourable changes of the working environments," Professor Francesco Cappuccio added.

After a long and hard journey that made international headlines, China's famous herd of wandering elephants appears to finally be heading home.

In August, the 14 Asian elephants of various sizes and ages were guided across the Yuanjiang river in Yunnan and a path was being made for them to return to the nature reserve in the Xishuangbanna Dai Autonomous Prefecture.

The elephants' return completes a more than 500km odyssey that caught the attention of the country. The highlights of their trip included the birth of a calf in Pu'er in last November; and going viral for taking a nap. If they were just taking a walk in the forest, it wasn't a big deal. But the fact is, they left whatever they stepped on in ruins, causing great damage to local residents.

Local wildlife experts have been unable to pinpoint the reason the herd decided to move. One reason is given that the population of elephants in the nature reserve in the Xishuangbanna Dai Autonomous Prefecture is so large, which has increased from 190 to over 300 since 40 years ago, that there is not enough food for them. Some say that their move is due to the influence of the magnetic field of the earth and there is another story saying maybe that lead elephant lost its way, thus leading the herd out of the way. But Zhang Li, a professor on conservation biology at Beijing Normal University, told the Global Times in June that large-scale human engineering developments have sped up the ‘islanding'of elephant habitats.

This meant "the traditional safe zones between humans and elephants are gradually disappearing, and the chances of elephants encountering humans naturally increase greatly".