On the left side of the hall, there is a pendulum to test the rotation of the earth. The Power Machinery Museum displays ancient windmills, water turbines and steam engines. 654.38+000V discharge devices are displayed in the power hall. The transportation hall displays a series of steam locomotives, carriages and cars of all ages. The Iron and Steel Pavilion shows the development of British smelting industry in 14 ~ 19 century, the first model of Barrow Company in England in 1865 and the new technologies of ironmaking, steelmaking and casting and rolling in the 20th century. Geophysics and Oceanography Department displayed various instruments and equipment for19th century exploration. The Textile Museum shows the earliest textile machines in the world during the British Industrial Revolution. The history of ships, shipyard models and marine engines are all displayed in the shipping hall. Planes and rockets are on display at the Aviation Museum. 1977 The Discovery Hall, which opened, shows new achievements in exploring the universe, oceans and the earth's climate, as well as large-scale deep-water submarines, artificial satellites and lunar landers.