tunnels

Drizzt Do'Urden, exiled from the surface world, struggles with solitude as he seeks out a new home in the labyrinth of the Underdark and watches for dark elves in pursuit.

"Examines the engineering concepts that make [tunnels]...possible"--Provided by publisher.

Kids will learn about the history of tunnels with Engineer It! Tunnel Projects. They will discover how tunnels are built. Then, build their own train tunnel, underwater tunnel, and more. Each project has color photos and easy-to-follow instructions. Young crafters will be budding engineers in no time!.

An introduction to the design process for tunnels.

The Berlin Wall went up in 1961. A year later a group of young West Germans risked prison, Stasi torture, and even death to liberate friends, lovers, and even strangers in East Berlin by digging tunnels under the Wall. When American channels NBC and CBS heard about it, they funded two separate tunnels in return for the right to film the escapes, planning spectacular prime-time documentary specials. President John F. Kennedy was not in favor of the plan because he was worried that the Soviets might take offense. As he said, "a wall is better than a war." In an era of escalating nuclear tensions, he approved unprecedented maneuvers to halt both documentaries, testing the limits of a free press.

"Created to support NGSS, the Be An Engineer! series explains how different structures are designed by engineers to solve problems. Each title takes readers through the steps of the engineering design process to explain how an everyday structure is designed to overcome physical obstacles to meet peoples' needs. Real-world examples, vibrant photographs, and fact boxes reinforce learning, and readers design and create their own model structures. A link printed inside each book gives readers access to Crabtree Plus, a secure website with supplemental digital content, including engaging simulations and interactive activities that reinforce and extend key series' concepts."--.

Ten true stories about how people have used tunnels for many different purposes.

Highlights the origin of the first tunnels, the greatest tunnel builders, the evolution and advancement of tunnels that are being built today.

Examines the earliest known tunnels in the world and the physics of how tunnels are built and remain standing in spite of tremendous weight above them.

Examines the development and building of tunnels through history. Discusses the engineering involved in designing and constructing tunnels, and what they may look like in the future.