這本書介紹了物理上的各種的能量、動力及其如何在日常生活中運作。適合8歲以上兒童閱讀。 Where does energy come from? Why do things fall down instead of up? This book looks at physics around us, and its use in everyday life. Discover how cars and planes work, how energy is turned into power in your home, and much more. |