Although the museum charges a high fee. But it's really a good place for children, including adults, to learn about science. We visited a robot exhibition sponsored by Google. Through interactive participation, we can understand the formation of tornadoes, experience the strong characteristics of hurricanes, make waves and lightning by ourselves. Because English is too poor to support my interaction, many projects are confused and don't know what's going on. There are also special projects that need to be paid separately, such as exploring underground to experience coal mining, boarding German World War II submarines and whaling boats. The museum includes industry, natural phenomena of the earth, biological nature, flight aviation, human mystery and so on. It's as popular as the Washington Space Museum. There are American children everywhere who enjoy themselves. The technologically powerful United States has done a really good job in science popularization. Our country needs to learn too much. American parents are so keen to take their children to museums, I also lament once and again.