Since 2008, hunters have illegally killed more than 3000 rhinos in South Africa. The International Union for Conservation of Nature warns that rhinos may die out by 2026. People who hunt and kill illegally are called poachers. The most effective way to watch for and prevent illegal hunting is from the air. However, piloted flights are too costly. Fortunately, some Spanish college students have invented a drone (无人机) that can observe more places than a plane.

    Arnau Garcia is an aeronautical (航空学的) engineering student at the Polytechnic Institute of Catalonia, in Spain. He says observers from the air have trouble finding poachers when they hide under the trees. Mr. Garcia and other students have worked with the drone manufacturer HEMAV to help find the hidden poachers. They make it by using the thermal camera, which is especially sensitive to body heat. Even when the poachers keep still, it can also keep track of them.

    The drone can fly in the wind up to 55 kilometers per hour. It has an autopilot system, so it memorizes the flight path. The drone also has a microphone, a video camera and a GPS system. These permit it to report accurately where a picture is taken. After each flight, the drone can bring back detailed information about where rhinos are found, the conditions of water and plants in the area, and the positions of suspected poachers.

    Experts say the drone can fly as far as 70 kilometers from the base. It means that it could quickly observe large areas for poachers. However, the same search operation would take days for human observers. Thanks to the drone, many poachers have been caught and the number of rhinos is on the increase. In addition, HEMAV has received an increasing number of orders for the drone. Even South African national park officials attempt to fill the air with drones.

    Have you ever heard of agritourism where you can experience farm life? If not, Dr. Cindy Ayers-Elliott will tell you the real story of Foot Print Farms.

    The original concept of building Foot Print Farms was simple. When Ayers-Elliott returned to her hometown after graduation, she didn't have to look any further than her state's alarming health statistics to find a mission. Everywhere she turned, there were reports of high blood pressure, diabetes, obesity and heart disease. "The problem was already identified." explains Ayers-Elliott. "Too many Mississippians were seriously unhealthy and it didn't take research to see that. And many of the state's greatest health challenges could directly result from poor diet. "

    These days, Foot Print Farms, which started with a few raised beds of herbs and vegetables, is making fresh, naturally grown food. "When speaking of the key to my success, the co-op model works because we share the work and rewards," notes Ayers-Elliott. "A perfect example is the Wingfield High School football team. To earn the money for equipment and other items, players committed to working five hours a week on the farm, and by the end of the summer they had produced 1, 000 melons and the profits from their sales helped to buy weights, T-shirts, sweat suits and pregame meals. But the lessons they learned about the rewards of hard work and working together to accomplish something were even more valuable products of their efforts."

    "It' s a model that can easily be learned in other places and I' m looking forward to seeing some of our current partners do just that——to take what they have learned here and spin it off in other communities," Ayers-Elliott remarks. She is now looking forward to developing an agritourism aspect to the farm, where visitors can experience farm life, learn new skills and take with them seeds of inspiration they can sow in their own communities when they return home.

    This year promises to be an exciting one for technology and science. There's a line-up of great products for you to look forward to.

    The Air Board 1.0

    The Air Board 1.0 is a fantastic new way to get around. The board works when you step onto the pressure pads. To turn? All you have to do is move your weight to the left or right. It can travel at the speed of 10 miles an hour and it takes one hour to be fully charged. The power will last for about ten miles.

    The Oculus Rift

    Have you ever wished you could walk through the world of your games, seeing things as your characters would? Well, now you can. This clever headset Rift allows you to see the world of your games in 3-D.

    The Miito

    The Miilo is perfect for all homes, and especially those who like to care for the environment. It has been called "the kettle of the future". The Miito is designed to heat up the water in any container. You can fill a cup with the right amount of water and place it onto the kettle. After placing the rod into the water, the rod would heat up and so would the water. The product doesn't only water. They also save electricity.

    The Click & Grow

    Are you the kind of person who enjoys using herbs and spices (香料) when cooking? The Click A Grow makes sure that you always have fresh and well-grown herbs or other plants whenever you need them. It is self-watering. And it also has an LED light that makes sure the plants grow fast and healthy.

SECONDARY PROGRAMS & RESOURCES

    Florida is a state located in the southeastern region of the United States. It is one of the most visited states in the country and the sunshine state attracts millions of visitors each year. Are you planning a vacation to it? Here our travel guide may help you.

    La Nouba at Walt Disney World Resort

    Duration: 90 minutes

    Location: Orlando, Florida

    While you're in Orlando, spend a day at the theme parks with a Cirque du Soleil show at Downtown Disney, La Nouba is the meeting of two different worlds—the fantastic world of the circus (马戏团) people who wear bright colors and the boring world of the people living in big cities who wear dark, lifeless clothes.

    Kennedy Space Center

    Duration: Flexible

    Location: Orlando, Florida

    Spend a day exploring the attractive Kennedy Space Center, just 45 minutes from Orlando. Learn about the history of the US space program and watch beautiful IMAX films. Don't miss the chance to walk under a Saturn V rocket, and experience a real moonwalk!

    Sea World Orlando

    Duration: Varies

    Location: Orlando, Florida

    Spend a day at Sea World Orlando and come face to face with the ocean's most attractive sea animals. With several up­close meetings with killer whales, sharks and turtles, you'll feel the energy and excitement of all kinds of sea life.

    South Beach Cultural Food and Walking Tour

    Duration: 2 hours and 30 minutes

    Location: Miami, Florida

    On the South Beach Cultural Food and Walking Tour, you'll explore the Art Deco district of South Beach on foot and along the way, you'll taste a variety of foods that make South Beach such an internationally well­known food region.

    Price information：

    Click the link below to check price information on your preferred travel date. Our price is constantly updated.

    If you make a list of the top ten most challenging jobs in the world, chances are that being a teacher will not make the cut. Let's think about their complex task millions of educators face each day as they try to teach a group of often unfriendly, disorderly kids into intelligent, well-rounded individuals. That surely has to be the toughest job in the world, especially taking into consideration that there is no promotion waiting for them even if they are wildly successful!

    What if these all-important individuals that we often take for granted disappear from our lives? That was what Project Ed and Participant Media's teaching campaign asked filmmakers of all ages to envision for their recently-held contest.

    Their short films were called "A World without Teachers", whose intention was to inspire more young people to become teachers. However, the 62 amazing video submissions (提交物) also serve as a reminder of how terrible things would be if we didn't have these selfless individuals guiding us through life. What was interesting is that even the youngest contestants didn't accept the idea that there's no person to tell them what to do.

    High-school student Savannah Wakefield considered if art as we know today would have been different without teachers. Would C. Monet have discovered his talent for impressionism?

    Miles Horst won the 1,000-dollar prize for the best adult submission, lie pictures n world where teachers are replaced by a "brain box". Youth group winner Marina Barham's video describes a fact we all know but often forget. Teachers don't just teach; they inspire—something that no electronic device, no matter how smart, can do!

    So the next time you think your teacher is being "troublesome" for trying to channel you in the right direction, imagine a life without him/her.