Several safari camps operate as the base for this adventure, providing unique rides twice a day to explore deep into the delta. The camps have excellent horses, professional guides and lots of support workers. They have a reputation for providing a great riding experience.

              The morning ride, when the guides take you to beautiful, shallow lakes full of water lilies, tends to be more active. It is unlike any other riding experience. With rainbows forming in the splashing water around you and the sound of huge drops of water bouncing off your body and face. It is truly exciting. You are very likely to come across large wild animals, too. On horseback it is possible to get quite close to elephants, giraffes and many other animals. The sense of excitement and tension levels rise suddenly though, as does your heart rate, as you move closer to them.

              In the evening, rides are usually at a more relaxed and unhurried pace. With golden light streaming across the grassy delta and the animals coming out to eat and drink. Sedate though they are, rides at this time of day are still very impressive. As the sun's rays pass through the dust kicked up by the horses, the romance of Africa comes to life.

              Back at the camp you can kick off your boots and enjoy excellent food and wine. Looking back on your day, you will find it hard to deny that a horseback Safari is as close as you will ever come to answering the call of the wild.

    They wear the latest fashions with the most up-to-date accessories(配饰). Yet these are girls in their teens or twenties but women in their sixties and seventies. A generation which would once only wear old-fashioned clothes is now favoring the same high street looks worn by those half their age.

    Professor Julia Twigg, a social policy expert , said ,“Women over 75 are now shopping for clothes more frequently than they did when they were young in the 1960s .In the 1960s buying a coat for a woman was a serious matter . It was an expensive item that they would purchase only every three or four years — now you can pick one up at the supermarket whosever you wish to .Fashion is a lot cheaper and people felt tired of things more quickly . ”

    Fashion designer Angela Barnard ,who runs own fashion business in London ,said older women were much more affected celebrity(名流) style than in previous years .

    She said, “When people see stars such as Judi Dench and Helen Mirren looking attractive and fashionable in their sixties ,they want to follow them . Older women are much more aware of celebrities .There's also the boom in TV programs showing people how they can change their look, and many of my older customers do yoga to stay in shape well in their fifties . When I started my business a fen years ago .my older customers wended to be very rich, but now they are what I would call ordinary women .My own mother is 61 and she wears the latest fashions in a way she would call ordinary women .My own mother is 61 and she wears the latest fashions in a way she would never have done ten years ago.”

    It is quite natural for all of us to want to preserve and protect the foods we buy. We always think that the best way is by putting them in our refrigerators. However, there are certain foods which should never be placed in the fridge. The foods listed below may surprise you.

    Bananas in the fridge? Because they keep nutrients better outside the fridge, they should never be placed inside the refrigerator. Bananas are better kept on the counter until they ripen. The cold temperatures actually slow down the ripening process of the bananas, while the moisture and darkness of the fridge will only make them go bad.

    Potato should be placed in a cool, dry and dark space. By reason of the cold temperatures of the fridge, it can turn starch（淀粉）into sugar more rapidly. It is also recommended that potatoes be removed from plastic or paper bags they may have been placed in. Also, keep them unwashed, as well as in a well-ventilated cardboard box.

    Placing your onions inside your refrigerator will eventually end up turning them moldy and soft. Unpeeled（未剥皮的）onions should be kept out of plastic bags and fridge. One of the reasons for this is because unpeeled onions require and need air exposure for maximum life. If you have peeled an onion though, then you should keep it in the fridge, in a covered container.

    Believe it or not, placing garlic in your refrigerator will actually cause it to sprout（发芽）. The garlic will also got moldy and even rubbery. Moreover, inside your fridge, the look of the garlic will rarely change. This means you won't be able to tell if it's any good until you finally slice it open.

    Whenever we see a button (按钮), we are eager to press it because we know something will happen. This is true in most cases, for example on a doorbell and on the “on/off” button on the TV. But some buttons are actually fake, like the “close” button on a lift.

    Many people are in the habit of pressing the “close” button because they don't have the patience to wait for the lift doors to shut. But lifts'" close" buttons are a complete scam, at least in the US—the doors will not close any faster no matter how hard you press.

    It started in the 1990s when the Americans with Disabilities Act was passed in the US, making sure that all lifts stayed open long enough so that people with disabilities could enter. Only US firefighters and repairmen can use the buttons to speed up the door-closing process if they have a code or special keys.

    But to normal lift riders, the buttons aren't completely useless. According to psychologists, fake buttons can actually make you feel better by offering you a sense of control.

    “Perceived (能够感知的) control is very important. It reduces stress and increases well-being," Ellen J. Langer, a psychology professor, said, “Having a lack of control is associated with depression.”

    Experts have revealed that a lot of buttons that don't do anything exist in our lives for this same purpose. For example  many offices in the US have fake thermostats (温度调节器) because people tend to feel better when they think they can control the temperature in their workspace.

    But psychologists found it interesting that even when people are aware of these little "white lies", they still continue to push fake buttons because as long as the doors eventually close, it is considered to be worth the effort.

    "That habit is here to stay," John Kounios, a psychology professor, said, ''Even though I have real doubts about the traffic light buttons, I always press them. After all, I've got nothing else to do while waiting. So why not press the button in the hope that this one will work?”

    While the start of a new school year is always exciting, this year was even more so for some elementary school students in Auckland, New Zealand. They became the world's first kids to be "taught" by a digital teacher, Will. Before you start imagining a human-like robot walking around the classroom, Will is just an avatar(化身) that turns up on the students' desktop, tablet, or smartphone screen when called.

    Thanks to a digital camera and microphone, the avatar not only responds to questions the kids may have, but also picks up non-verbal signals. For example, if a student smiles at Will, he responds by smiling back. This two-way communication not only helps draw the students' attention, but also allows the program's developers to monitor their involvement(参与) and make changes if needed.

    Vector's Chief Digital Officer, Nikhil Ravishankar, believes that Will-like avatars could be a novel way to attract the attention of the next generation. He says, "Using a digital human is a very popular method to deliver new information to people, and I have a lot of hope in this technology as a means to deliver rich and educational experience in the future." Greg Cross, the Chief Business Officer for Soul Machines, states that kids who have grown up in this digital time adapt(适应) to new technology quickly, and he hopes to develop the idea of digital humans in the area of educate further.

    The program, in place since August 2018, has been a great success so far. However, no mater how popular it becomes, Will is unlikely to replace human educators any time soon. For one, the avatar's knowledge base is severely limited. But more importantly, even the smartest digital avatars could never predict and react to all the unexpected situations that educators have to deal with on a daily basis. However, it could come in handy as a "personal teacher", providing kids with one-on-one help on the subjects or even topics.

Public libraries are an excellent resource for research, literacy(读写能力)education, and reading-centered events. Most towns have one or share library services with other towns through a mobile library, and the use of a public library is free to people who are willing to apply for a library card.

There are several primary sources of library funding(资金)， starting with national funds which are distributed to states or provinces. These regions send the funds on to public libraries. Local governments also play an important role in providing funding for libraries, and most librarians apply for grants(拨款). Finally, private donations help to maintain libraries—most libraries have an association of Friends of the Library which organizes fund-raising sales and pays annual dues to help maintain the library.

Grants and private donations can also be used to provide a large amount of funding for public libraries, and some large libraries maintain a separate staff to increase the amount of funding that they can obtain through these sources. Grants include technology grants which allow libraries to install and upgrade computer systems, grants which focus on a particular topic such as science, fiction, children's books, or local history, and education grants which support locally-based community efforts such as after-school reading programs. Many private donors are pleased to support their local public libraries by donating funds or including some library in their wills, and libraries reward their donors with treats like after-hours visits or privileged access to special collections.

By combining multiple resources, creative librarians can keep their libraries useful, informative, and fun for browsers. When it comes to supporting public libraries, every little bit counts: if you cannot afford to donate to a local library, think about volunteering time to help shelve, lead after-school programs, or organize fund raisers. Being active with your public library is a very important way to contribute to your local community.