How would you use a radio or a telephone if you had no electricity or batteries? These1bothered (使烦恼) British inventor Trevor Baylis. So in 1996 he2a windup (装有发条的) radio. It doesn't need electricity or batteries. You wind it up3hand. It plays for about an hour. Then, you wind it up4. Today it's made in South Africa.
Then in 1999, Baylis invented a mobile telephone that is powered by5. The shoes contain( 含有)! a small battery that is powered when you6. This battery is connected to a mobile phone. These two simple inventions can bring modern7to all parts of the world.
Baylis doesn't have a university degree in engineering. In8,he left school before graduating(毕业). He just loves9things to help people. He never knows10ideas will come to him. The idea for the telephone came to him in a dream.
