Title: Power and energy
Description: "Traces the progress of technology used to create energy to run machines from ancient watermills and windmills to today's biofuels, solar cells, and other renewable resources. A timeline shows the evolution of technology used to create electricity and other power"--Provided by publisher.
Subjects: Power (Mechanics), Force and energy, Power resources, Juvenile literature, Power resources, juvenile literature, Force and energy, juvenile literature, Machinery, Machinery, juvenile literature