Discusses various types of bridges that can be found all over the world.

"Beneath Earth's surface is a boundless source of energy--geothermal energy. Heated by our planet's red-hot core, hot water and hot rock below the ground on which we walk already provides energy in many parts of the world, from Alaska to Hawaii. Discover the different forms geothermal energy, how people are harnessing and using this rich supply, and how it could be an important part of our energy future."--

Examines how architecture has evolved over time by looking at buildings that typify each period, from the pyramids and the Parthenon to the Chrysler Building and the Sydney Opera House. "We spend most of our lives in buildings. We make our homes in them. We go to school in them. We work in them. But why and how did people start making buildings? How did they learn to make them stronger, bigger, and more comfortable? Why did they start to decorate...

"Overflowing with information and providing a narrative in the form of repartee-filled speech bubbles, this book reveals how concrete plays a huge role in the creation of the human-made world."--

Explains how flight works, looks at the history of human attempts at flight, and describes the different roles and responsibilities of aerospace engineers.