I think that the most advanced form of technology “railcar” surprised me the most. This technology become successful because of the invention of railroad and the building of the Erie Canal. This increase the runway growth of Chicago would never be possible without the chemical properties of water. If the chemical properties of liquid water changes, life on earth might be in different shape. Our lives can have big differences. If there is some kind of change for the water, most of us might not be evolved in this world. Human might not even appear in this world. As a human being, we all need water. Coldness help us to freeze the water into ice, which allow the world to hold more water. If coldness is to be disappear, the form of human might be
