Most advertising in ancient times was word-of-mouth, that is, people liked something and told others about it. But even then, people advertised by putting inscriptions (题字) on walls, for example to display political slogans and to offer household goods for sale. Also, in Rome and Greece, in ancient times, it was common for people to use papyrus, a kind of paper, to advertise things they had lost or found. The tradition of wall or rock painting as a way of advertising goods is even more ancient.

    Painting developed in the 15th and 16th centuries, and this increased the forms of advertising. Handbills — small printed notices and advertisements — became common. Then, by the 17th century, advertisements started appearing in weekly newspapers in England. In the 19th century mail order catalogues appeared, promoting all kinds of goods.

    Finally, advertisements in the 1960s became more creative and more interesting. Also, they began to draw attention to the 'unique selling points', the USPs of products. These are the qualities that make a product different from competitors' products.

    These days, advertisers have come up with new ways of promoting their products. For example, product placement is now common. This is advertising in TV programmes or films by having a character, preferably played by a famous actor, use a particular product. For example, Tom Cruise's character in the movie, Minority Report, had a computer with the Nokia logo (商标) on it, and his watch was clearly made by Bulgari.

    TV commercials are a very effective medium for advertisers, though these are very expensive. If an organization wants to have a 30-second TV advert during the annual Superbowl game in the United States, they have to pay about $2.5 million.

    Perhaps the most interesting development is the use of famous personalities to endorse (代言) a product. The basketball player, Michael Jordan, endorsed Nike products and wore them while playing.

    Getting well-known personalities to endorse a product can be very expensive, but endorsements certainly increase a product's sales, especially if the personality has a positive image in the eyes of the public.

    No one is sure how the ancient Egyptians built the pyramids near Cairo. But a new study suggests they used a little rock 'n' roll. Long ago builders could have attached wooden poles to the stones and rolled them across the sand, the scientists say.

    "Technically, I think what they're proposing is possible." physicist Daniel Bonn said.

    People have long puzzled over how the Egyptians moved such huge rocks. And there's no obvious answer. On average, each of the two million big stones weighed about as much as a large pickup truck. The Egyptians somehow moved the stone blocks to the pyramid site from about one kilometer away.

    The most popular view is that Egyptian workers slid the blocks along smooth paths. Many scientists suspect workers first would have put the blocks on sleds. Then they would have dragged them along paths. To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle. Bonn has now tested this idea by building small sleds and dragging heavy objects over sand.

    Evidence from the sand supports this idea. Researchers found small amounts of fat, as well as a large amount of stone and the remains of paths.

    However, phyficmt Josepn West thought there might have been a simpler way, who led the new study. West said, "I was inspired while watching a television program showing how sleds might have helped with pyramid construction. I thought, "Why don't they just try rolling the things?" A square could be turned into a rough sort of wheel by attaching wooden poles to its sides, he realized. That, he noted, should make a block of stone "a lot easier to roll than a square".

    So he tried it.

    He and his students tied some poles to each of four sides of a 30-kilogram stone block. That action turned the block into somewhat a wheel. Then they placed the block on the ground.

    They wrapped one end of a rope around the block and pulled. The researchers found they could easily roll the block along different kinds of paths. They calculated that rolling the block required about as much force as moving it along a slippery path.

    West hasn't tested his idea on larger blocks, but he thinks rolling has clear advantages over sliding. At least, workers wouldn't have needed to carry cattle fat or water to smooth the paths.

    Gifts. com provides more than just ideas. Sure, our unique (独特的) and unforgettable gift suggestions are a big part of why people love us, but we also offer endless ideas and tools to make every day a reason to celebrate. Here are our Great Christmas Gift Ideas:

    Christmas Gifts for Parents

    You love your parents like no one else, and you want to give them something special for Christmas. But what would make their holiday bright? Finding them the perfect Christmas gift will be easy this year, with all our top picks in one place.

    Christmas Gifts for Parents Under $45

    Holiday Gift Baskets

    The gift basket is a great way to give a gift to a group. Our gift basket ideas come from all the top stores online, so you can easily find everything from fruit gift baskets to wine gift baskets in one place.

    Gift Baskets Under $50

    Ideas for Teens

    Trying to find the right gift for a teen? Teens can be a challenge (挑战). What do they want? What could they use? They're all unique, but we think we've got something for them, even though they're a special group that are hard to deal with.

    Top Picks for Teens Under $20

    The Secret Santa Exchange (交换)

    The Secret Santa is a great way to exchange gifts in the office, when it's often impossible to give everyone a present. We've got an office guide right here to help you find proper gifts for the workplace. And then there's always the gift basket, with things that are sure to please everyone in the office.

    Business Gifts Under $25

    No trip to Windsor could possibly be complete without a visit to amazing Windsor Castle, the family home to British kings and queens for over 1,000 years. The size of the Castle is breath-taking. In fact, it is the largest and oldest occupied Castle in the world and it's where Her Majesty The Queen chooses to spend most of her private weekends. You might even time your visit when she is in residence! The marriage of Prince Harry and Ms Meghan Markle took place in Windsor on Saturday, 19 May, 2018.They became the sixteenth royal couple to celebrate their marriage at Windsor Castle since 1863. Windsor Castle offers something for everyone with so many areas to explore.

    Visit the magnificent State Apartments, furnished with some of the finest works of art from the Royal Collection, including paintings by Rembrandt, Rubens and Canaletto.

    Take in the splendor of St George's Chapel, location of the wedding of Prince Harry and Ms Meghan Markle, the burial place of 10 Kings including Henry VIII and Charles I, and one of the finest examples of Gothic architecture in England.

    Be amazed at Queen Mary's Dolls' House, the largest, most beautiful and most famous dolls' house in the world, created in the 1920s and filled with thousands of objects made by leading craftsmen, artists and designers of the time.

    Imagine being entertained by royalty in the Semi-State Rooms, the spectacular private apartments open to visitors from September to March each year. Richly decorated, they are used by The Queen for hosting her guests.

    Nola (August 21, 1974 -November 22, 2015) was a northern white rhino who lived at the San Diego Zoo Safari Park near Escondido, California. At her death, she was one of only four remaining northern white rhinos in the world. The other three lived in Kenya. World Rhino Day, held on September 2, is to raise awareness(意识) of the less than 30,000 other rhinos left on Earth.

    “Rhinos need our help today, not tomorrow,” Nola's lead keeper Jane Kennedy said. “Last year we lost over 1,200 rhinos just in South Africa. If we continue to lose more than 1,000 rhinos a year, in 10 to 20 years all the rhinos on the planet will be gone.”

    “Unfortunately, most animals are in danger of dying out because of humans,” Kennedy says.“ Humans have either poached animals, or because there are over seven billion of us, we've taken up too much of the world's resources”. Poachers illegally hunt rhinos for their horns. They sell the horns for thousands of dollars per pound, to be used for art, jewelry, and decorations. Experts believe that one rhino is poached every eight hours.

    In 1975, the San Diego Zoo Institute for Conservation Research started the Frozen Zoo, a program through which researchers have collected cell (细胞) samples from more than 8,000 different types of animals, including the northern white rhino. Scientists hope that by studying the rhino cells, they will get greater understanding of it, and will find ways to increase its numbers.

    Jane Kennedy describes World Rhino Day as “a celebration of rhinos along with an awareness campaign for everybody across the world to know that rhinos need our help.”At the San Diego Zoo, children and adults are welcome to visit and speak with zookeepers to learn about rhinos. But you don't have to live in San Diego to celebrate World Rhino Day. It is observed around the world, with zoos and wildlife parks holding special events and programs to teach people about rhinos, and enable them to see the animals up close. For more information, go to www.worldrhinoday.org.

    A Language Programme for Teenagers

    Welcome to Teenagers Abroad! We invite you to join us on an amazing journey of language learning.

    Our Courses

    Regardless of your choice of course, you'll develop your language ability both quickly and effectively.

    Our Standard Course guarantees a significant increase in your confidence in a foreign language, with focused teaching in all 4 skill areas — speaking, listening, reading and writing.

    Our Intensive Course builds on our Standard Course, with 10 additional lessons per week, guaranteeing the fastest possible language learning(see table below).

    Evaluation

    Students are placed into classes according to their current language skills. The majority of them take an online language test before starting their programme. However, if this is not available, students sit the exam on the first Monday of their course.

    Learning materials are provided to students throughout their course, and there will never be more than 15 participants in each class.

Arrivals and Transfer

    Our programme offers the full package — students are taken good care of from the start through to the very end. They are collected from the airport upon arrival and brought to their accommodation in comfort. We require the student's full flight details at least 4 weeks in advance.

    Meals/Allergies(过敏)/Special Dietary Requirements

    Students are provided with breakfast, dinner and either a cooked or packed lunch (which consists of a sandwich, a drink and a dessert). Snacks outside of mealtimes may be purchased by the student individually.

    We ask that you let us know of any allergies or dietary requirements as well as information about any medicines you take. Depending on the type of allergies and/or dietary requirements, an extra charge may be made for providing special food.