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I want to recommend to you a very interesting article. I remember reading about it in an English newspaper. The title is "100 inventions that changed the world". This article introduces various kinds of inventions. Not only have modern high-techproducts such as the mobile phone,the computer, the digital camera, but also many small household articles such as the lock, button and the pencil. Here I introduce and evaluates some my favourite interesting inventions.The first one is abacus, ues of the abacus,invented by the Chinese, it was first documented in about AD190 during the Han Dynasty.It was the speediest way to do sums. The second is button. Which one come first? the button or the buttonhole? The answer is button. The ancient Greeks fastened cloth use buttons. Today ,60 percent of the world's buttons are made in one Chinese town-- Qiao tou, there are makes 15 billion buttons a year. The next one is TV remote control. It is made by a American company ,it was quickly nicknamed"lazybones".It enabled some people became couch potatoes. It seems to me that every advantage has its disadvantages. The last one is mobile phone. There are more than two billion mobile phones in the world. If our life without mobile phones, we will have terrible life.Inventions are very important for us, inventions make our life convenient. So we should discover the world and make the world more various.