Market is the inevitable product of the division of labor and the development of commodity economy. At the same time, the market also promotes the social division of labor and the further development of commodity economy during its development and expansion. The market through information feedback directly affects the production of people, how much production, and the market time, product sales status, etc.; Middle link commodity economy development process, supply and sale, the parties to provide production, supply and sale parties exchange places and other exchange, exchange time, to realize the commodity producers, operators and consumers their own economic interests We now want the milk to move somewhat. To do this the colour changing milk science experiment will demand some washing up liquid or 'dish soap'. Get a cotton wool pad and dip it on to the soap - don't put to much soap onto it, you do not need the swab to get dripping in soap. Carefully dab the cotton wool ball into among the food coloring's inside the soap and retain the swab there. Bang! Watch the colour explode outwards in concentric circles - very pretty. The main characteristics of a typical trend movement process: first, the development of the trend has not been confirmed; Second, once the trend is confirmed, this will strengthen the trend and lead to a self-propelling process. In the early stage of trend formation and reinforcement, suspicion is repeated, but it is eliminated many times. Once again, if the trend continues after the impact of many doubts, then the trend will inevitably have an accelerated process; Then, the market began to appear extreme, the market behavior was seriously distorted, the market entered the irrational state. It also indicates that the climax is coming; Finally, the public's view of the market is highly consistent, and the market is stagnating itself in a frenzy. A reverse movement is coming. Markets tend to be overridden and prone to extremes. The more people who follow the trend of the market, the easier it is to continue and reinforce the trend. Sometimes, market prices are not just a reflection of fundamentals, they have become a fundamental and affect price fluctuations.