On the Connexion of the Physical Sciences

"On the Connexion of the Physical Sciences" by Mary Somerville is a nineteenth-century book about science that shows how different parts of science are connected, mainly through astronomy and gravity. Somerville starts by saying that learning about science is like thinking deeply about important things. She explains that when we understand the world, especially space, we see how amazing the universe is, and the rules that control it show that there's a greater plan. The first part of the book sets up detailed talks about how things move in space, what gravity is, and the math that helps us understand how stars and planets move, highlighting how beautiful and complicated science can be.