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    With a floor area（占地面积）larger than Beijing' Tian'anmen Square, the Guangdong Science Centre is known as the world's largest science and technology museum. The centre is located on Xiaoguwei（小谷围岛）Island and seen from a distance, it looks like a kapok flower（木棉花）of Guangzhou. It is one of the most famous “landmarks of Guangzhou”.

    It cost the government about 1.9 billion yuan to build the centre over five years. On September 27, 2008, it was opened to the public. The centre shows China's newest fruits of science and technology. It is full of exciting small machines and amazing small invention, waiting to help you understand interesting aspects（方面）of the world of science.

    The centre offers eight exhibition areas, four science cinemas, two open labs and a digital “family experience” hall. Outside the main building, there is an 80,000-square-metre man-made lake for water-theme exhibitions and outdoor science square.

    Exhibition: Children's World, Experience and Discovery, Transportation World, Digital World,  Green Home, Flight Dream, The Human Body and health, Perception and Thinking

    Opening hours: 9:30 am to 4:30 pm from Tuesday to Sunday; Closed on Monday (except public holidays and Golden Weeks)

    Ordinary ticket: 60 yuan/person

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    How would you use a radio or a telephone if you had no electricity or batteries? This 1 bothered (使烦恼) British inventor Trevor Baylis. So in 1996, he 2 a wind-up (装有发条的) radio. It doesn't need any 3 or batteries. You wind it up by hand. It plays for about an hour. Then, you wind it up 4, and it plays for another hour. Today it's made in South Africa.

    Then in 1999, Baylis invented a mobile telephone that is powered by 5.The shoes have a small battery that is powered when you 6. This battery is connected to a mobile phone.

    These two simple inventions can bring 7 communications to all parts of the world. Baylis doesn't have a university degree in engineering. In 8, he left high school before graduating. He just loves 9 things to help people. He never knows when 10 will come to him. The idea for the telephone came to him in a dream.