The winter vacation is just around the corner. With such a long holiday to spend, have you decided where to get yourself relaxed from the great pressure of school study? Our company specializes in civil tours. We take pride in offering you the best services and in providing you with a vacation that will be fondly remembered. The following places can be your unforgettable destinations in our country.

    A. The Australian Museum

    The Australian Museum has an international reputation in the fields of natural history and indigenous studies research and exhibitions. The museum was established in 1827 and is Australia's first museum of natural science and cultural artifacts.

    B. Sydney Olympic Park

    Home of the Best Games Ever and 2003 Rugby World, Sydney Olympic Park is a gold medal attraction and continues to serve as a major sport and social venue.

    Apart from its ultra-modern sport venues, Sydney Olympic Park is set in extensive parklands. Bicentennial Park, one of Sydney's most popular recreational areas, is criss-crossed with walking and bicycle tracks.

    C. Art Gallery of New South Wales

    Located within a short walking distance from Sydney's CBD, the Art Gallery of New South Wales is one of Australia's foremost art museums housing some of the finest works of art in the country.

    The Gallery has a rich and diverse collection including key works of the Heidelberg School and favorite modern Australian artists including Brett Whiteley and Margaret Preston, as well as permanent Australian, European, Asian, contemporary and photographic galleries.

    D. Koalas Park Sanctuary

    Koalas are on show every day. Shows are at 10:20 A.M., 11:20 A.M., 2:00 P.M., 3:00 P.M. where you can cuddle, feed, pat and have your photo taken with the Koalas. See free roaming Koalas as well, 10 acres of rainforest. Walk in and pat our kangaroos.

    Ever wonder how much a cloud weighs? What about a hurricane? A meteorologist（气象学家） has done some estimates and the results might surprise you.

    Let's start with a very simple white puffy cloud—a cumulus cloud(积云). How much does the water in a cumulus cloud weigh? Peggy LeMone, senior scientist at the National Center for Atmospheric Research in Boulder, Colorado, did the numbers. “The water in the little cloud weighs about 550 tons,” she calculates. “Or if you want to convert it to something that might be a little more meaningful...think of elephants.” Assume（假设） an elephant weighs about six tons, she says, that would mean the water inside a typical cumulus cloud would weigh about one hundred elephants.

    The thought of a hundred elephants' worth of water floating in the sky begs another question—what keeps it up there?

    “First of all, the water isn't in elephant-sized particles(微粒); it's in tiny tiny tiny particles,” explains LeMone. And those particles float on the warmer air that's rising below. But still, the concept of so much water floating in the sky was surprising even to a meteorologist like LeMone. “I had no idea how much a cloud would weigh, actually, when I started the calculations（计算）,” she says.

    So how many elephant units of water are inside a big storm cloud—10 times bigger all the way around than the “puffy” cumulus cloud? Again, LeMone did the numbers: About 200,000 elephants.

    Now, come to the calculations for a hurricane about the size of Missouri and the figures get really massive. “What we're doing is weighing the water in one cubic meter theoretically pulled from a cloud and then multiplying by the number of meters in a whole hurricane,” she explains.

    The result? Forty million elephants. That means the water in one hurricane weighs more than all the elephants on the planet. Perhaps even more than all the elephants that have ever lived on the planet.

    Photos of the moon are beautiful if taken well, but it can be very hard to get a picture of the moon that doesn't look blurry! In order to take a perfect picture of the moon, apart from a high­quality camera, the associated equipment and the skills to set up your camera, you also need to pick a proper time and a good place.

    Choose your favorite moon phase. The moon can be photographed in any phase except the new moon, which is not visible to Earth. The first quarter, half, and third quarter phases provide high contrast that allows you to see the craters(坑) in greater detail, while the full moon is a dramatic choice for a skyscraper. What phase you choose is up to your personal preference, but it's best to have a phase chosen before going out to photograph the moon.

    Learn when the moon rises and sets. When the moon sets or rises, it is closer to the horizon, making it appear larger and closer. This makes it much easier to photograph! Check an almanac(年历) or a weather app for moon rising and setting times in your area.

    Pick a clear night. Clouds, fog, and air pollution will blur your photographs. Check a weather app or watch the weather forecast before leaving for your session and while photographing. A clear night with low smog content and no rain is best for moon photography.

    Choose a location away from direct light sources. The moon appears bright because it reflects the light of the sun, and additional light from streetlights, homes, and cars can make the moon appear duller and blurrier in pictures. It is fine if there is light in the distance, but be sure that you are not photographing close to another light source.

    After attending another parent meeting about my 7-year-old child's behavior, I didn't know what to do. It was the second school we had tried for Nathan and, as always, everything was being done for my child's needs. It was also having bad influence on Nathan. He would come home and say, "Mom, I hate my life. I do not want to live any more." I was afraid that my son was beginning to suffer from depression(抑郁) and that I was losing him. We needed help.

    By the age of seven, Nathan had already had three surgeries (外科手术) for his ears. He was in great pain, which made it difficult for him to learn or pay attention. Despite Nathan's bad condition, the staff at two former schools seemed as if they didn't care. They often forgot to deal with his medication(药剂). As a result of many times of ear infections (感染), Nathan had hearing loss. To make things worse, Nathan's speech was not very good. Children would make fun of him and Nathan began to fall behind in study.

    When I first set foot into Ripley House Charter School, I knew this was the school for my son. It felt positive from the moment I entered. From the start, Mrs. Elsen and her staff heard my concern over Nathan. Mrs. Elsen dealt with my concern, not with empty words but with action.

    That day, Nathan came home from his first day of school saying, "Mom, I love school!" By the end of the week he was saying, "Mom, I like my life. I have a good life." Ripley House Charter School gave me my son back and saved our lives. Thank you for giving me back what we had lost—HOPE.

    Facebook says it is working on technology to allow us to control computers directly with our brains. It is developing "silent speech "software to allow people to type at a rate of 100 words per minute, it says. The project, in its early stages, will require new technology to detect brainwaves without needing invasive operation. "We are not talking about monitoring your random thoughts," assured Facebook's Regina Dugan. "You have many thoughts, and you choose to share some of them. We're talking about monitoring those words. A silent speech interface（界面）-one with all the speed and flexibility（灵活）of voice. "

    Ms Dugan is the company's head of Building 8, the firm's hardware research lab. The company said it intends to build both the hardware and software to achieve its goal, and has employed a team of more than 60 scientists and academics to work on the project.

    On his Facebook page, Mark Zuckerberg added, "Our brains produce enough data to stream four HD（高清）movies every second. The problem is that the best way we have to get information out into the world-speech-can only send about the same amount of data as a 1980s modem. We're working on a system that will let you type straight from your brain about five times faster than you can type on your phone today. Finally, we want to turn it into a wearable technology that can be produced in quantity. "

    Technology is going to have to get a lot more advanced before we can share a pure thought or feeling. but this is a first step. Other ideas detailed at the company's developers conference in San Jose included work to allow people to "hear" through skin. The system, comparable to Braille, uses pressure points on the skin to pass information. "One day, not so far away, it may be possible for me to think in Chinese, and you to feel it instantly in Spanish,"Ms Dugan said.

After moving to the United States in 1901, 19-year-old Bob Douglas found a job as a doorman in New York. Later, a co-worker took him to visit a basketball court, and he was amazed by the athletic prowess on display. At that moment, Douglas, who had enjoyed playing sports as a child, was determined to create a basketball team and provide greater opportunities for New York City's Black athletes. 

He needed to find a place for his team to play. When asking a ballroom owner, William Roach, for permission to use one of the dance floors, Douglas was replied with "you guys will break up my place". After promising to take on all the financial risk, he finally persuaded Roach to change his mind and called the team "Rens". 

However, their ballroom had fewer seats and attracted fewer people than others, so Douglas had to pack the house to generate profits and keep his team alive. They traveled the country playing any opponent that would agree to schedule them, during which they repeatedly faced discrimination and unfair treatment and the players were often banned from hotels and restaurants. 

No matter the obstacle, the Rens just kept strict practicing. They helped change the game of basketball by focusing on quick passing, which let the players move faster, play a more fluid (流畅) game and keep winning. In 1925, the Rens shocked the world by defeating the Original Celtics, the most dominant team of their day. During the 1932-33 season, the team won 88 straight games, a professional basketball record that remains unbroken. 

Unfortunately, the Rens disbanded (解散) in 1949. But in time, they were recognized for the important role they played in advancing Black athletes in basketball, ensuring that although the Rens aren't a household name, their story will never be forgotten.