There are two main types of non­verbal communication. Body language is the first. Body language is body movements that depend on a person's attitude or feelings. Body language includes the way people walk，how they stand，and their facial features. In other words，any kind of meaning is shown by a person's attitude or body movements. For example，when a boy is sad he may drop his head and walk slowly. Or，if a girl is happy，she might run and jump or stand up straight and put her hands in the air. People don't have to say anything to show how they feel about things. The colour of people's skin may even show how they feel. For example，if people with light coloured skin get embarrassed，their skin may turn red，or if they are worried，they might get pale. Body language can be voluntary(主动的) or involuntary(无意识的)．An interesting fact is that blind children will smile when happy even though they have never seen a smile.

    The next main type of non­verbal communication is gestures. Gestures are communications like facial expressions，hand signals，eye gazing，and body postures. Examples include smiles，handshakes，waving，and raising certain fingers to say something. For instance，if you saw a friend at a noisy carnival，you might smile and wave at your friend. You might also point at the Ferris wheel if you wanted to meet your friend there. You could do all of these things without saying a word. Another great example is in baseball when the catcher signals to the pitcher the kind of pitch to use for the batter that is up.

    Max Vernon Mathews has been called the father of computer music. He created electronic tools so that people could use computers as musical instruments. He had a huge influence on the development of electronic music and how it is written, recorded and played.

    In 1957, Max Mathews wrote the first computer program that enabled a computer to create sound and play it back. At the time, he was working as an engineer at Bell Laboratories in New Jersey. His computer program was called Music. It enabled a large IBM computer to play a seventeen-second piece of music that he had written.

    The computer was so slow that it would have taken an hour to play the piece of music in seventeen seconds. For that reason, Mathews moved the work to a tape player, which could be sped up to play the music at a normal speed. He later said that the sound quality of the music notes was not great, but the technical importance of the music was huge.

    The science fiction writer Arthur C. Clarke visited Bell Laboratories in the 1960s. He heard a computer “sing” the song "Daisy Bell" on devices and programs developed by Max Mathews andother engineers. Clarke noted this technology in his book “2001: A Space Odyssey,” which was later made into a movie.

    Mathews continued creating other versions of the Music program. He became interested in how computers could help musicians outside recording studios.

    Max Mathews had a long and productive career. He worked with composers like John Cage and Edgard Varese. He helped create a center for research in computer music in Paris. And he taught at the Center for Computer Research in Music and Acoustics in Stanford University in California.

    Mathews believed modern musicians were not making full use of the power of computer music. He said a violin always sounds like a violin, but with a computer, the way a violin sounds is unlimited. He said he did not want computer sounds to replace live music. But he said he hoped laptop computers would one day be considered serious instruments

    If you go into the forest with friends, stay with them. If you don't, you may get lost. If you get lost, this is what you should do. Sit down and stay where you are. Don't try to find your friends—let them find you. You can help them find you by staying in one place. There is another way to help your friends or other people to find you. You can shout or whistle(吹口哨) three times. Stop. Then shout or whistle three times again. Any signal given three times is a call for help.

    Keep up shouting or whistling. Always three times together. When people hear you, they will know that you are not just making a noise for fun. They will let you know that they have heard your signal. They will give you two shouts or two whistles. When a signal is given twice, it is an answer to a call for help.

    If you don't think that you will get help before night comes, try to make a little house with branches(树枝). Make yourself a bed with leaves and grass.

    When you need some water, you have to leave your little branch house to look for it. Don't just walk away. Pick off small branches and drop them as you walk in order to go back again easily. When you are lost, the most important thing to do is to stay in one place.

    Photos of eight-year-old Wang Fuman, nicknamed by “Snowflake Boy” in Yun Nan, shared by his principal on Tuesday, showed the boy has a red face from the low temperatures and apparently did not wear enough clothes to keep warm. He also suffered from frostbite. He stood alone with his white hair and eyebrows while other classmates behind were clearly amused and laughing. The picture drew widespread attention around the whole world. Many netizens (网民) were sympathetic to the boy's difficulties, with many Mircoblog users giving comments under the report.

    Just after the report, a donation of 100,000 yuan was sent to his Primary School. Constantly, help still pours in for the Chinese boy. But the local authorities call on others to pay attention to other similar rural areas and give them timely aid. In China, there are still so many children just like Fuman living by himself with parents migrating to cities to make a living.

    If you wear glasses, chances are you are smarter. Research published in the famous British journal Nawre Conurunications has found — people who displayed higher levels of intelligence were almost 30 percent more likely to wear glasses.

    The scientist, studied the genes of thousands of people between the ages of 16 and 102. The study showed intelligence can be connected to physical characteristics. One characteristic was eyesight. In out of 10 people who were intelligent, there was a higher chance they need glasses. Scientists also said being smarter has other benefits. It is connected to better health.

    It is important to remember these are connections which are not proven causes. Scientists call this correlation. Just because something is connoted to something else does not mean one of those caused the other. And it's worth noting that what constitutes (构成)intelligence is subjective and can be difficult, if not impossible, to measure.

    Forget genes thought. Plenty of proof shows wearing glasses makes people think you are more intelligent, even if you do no, need glasses. A number of studies have found people who wear glasses are seen as smarter, hard-working and honest. Many lawyers this idea to help win their cases. Lawyer Harvey Slovis explained this. "Classes soften their appearance," he said. Sometimes there has been a huge amount of proof showing that people he was defending broke the law. He had them wear glasses and they weren't found guilty.

    Glasses are also used to show someone is intelligent in movies and people who wear glares have begun to shift. People who do not need glasses sometimes wear them for fashion only. They want to look worldly or cool. But not everyone is impressed by this idea, thought. GQ magazine said people who wear glasses for fashion are trying too hard to look smart and hip(时髦的). However, that hasn't stopped many celebrities (名人) from happily wearing glasses even if they do not need them. Justen Bieber is just one high - profile fen of fashion glasses.

    For many families, a night at the ballpark is a treat. But it can be a terrible experience for those with autistic(自闭症的)children, who are sensitive to light and noise and usually become upset and scared.

    For these families, fear of how their child will react to new situations­and how others will react to them-keeps them from gaining everyday experiences others get to have.

    Dr. Wendy Ross was heartbroken to see that. The pediatrician(儿科医生)in Philadelphia also knew that separation from the community didn't serve her patients well in the long run.

    "If kids are not in the community, building their skills from very young ages, then there's no reason to expect them to be independent one day," Ross said. "It's a social disability. It needs to be addressed in a social setting."

    So in 2007, Ross set out to do just that. Today, her nonprofit, Autism Inclusion Resources, helps families affected by autism deal with challenging social situations, such as sporting events, airport travel and museum visits.

    Many Major League Baseball teams hold annual 44autism awareness nights", when they take temporary measures such as lowering the volume (音量)on the public address system. But Ross wanted to do more. "You can't turn down the volume of the world," Ross said. "It's nice to do it for one night, but our goal is for families to be able to go to a game on any night."

    To that end, Ross partnered with the Philadelphia Phillies to develop a creative program.

    She armed all the Phillies players and game-day staff with knowledge about autism and how to interact with individuals who have the disorder. Each family is also provided a clinician at the game who gives additional support if problems arise. She also helps prepare the families for the event.

    Ross has also found her airport travel program to be successful for families. Using the same principles, she trains airline and security staff at major airports and then guides families through the travel experience, including checking in, going through security and boarding a plane.

    Ross hopes that the tools she gives families can help them explore other settings on their own. "We really see it as a stepping stone to a brighter future," she said.