This building used the steel-frame method, innovated in Chicago. It was originally built with 10 stories, a considerable height in the 1800s, to a height of 138 feet (42 m), making it the tallest building in the world. It was later expanded to 12 stories with a height of 180 feet (55 m).
A battery is a device that converts chemical energy into electrical energy and vice versa. batteries for hybrid, plug-in hybrid, and electric vehicles. specifications used to characterize battery nominal and maximum characteristics. pack that consists of individual modules and cells organized in series and parallel.
Figure 2.6: Batteries transform chemical energy into electrical energy. Batteries transform chemical energy into electrical energy. There are many different types of batteries, but all have three basic components: positive electrode (cathode, or positive terminal), negative electrode (anode or negative terminal), and electrolyte.