tunnels

"Styx and their cohorts of deadly Armagi have swept across England, leaving death and devastation in their wake. Only a miracle can save the day and, in the inner world at the centre of the earth, Will and Elliott might just have stumbled upon one as they uncover ancient secrets that are fundamental to all human and Styx life"--Provided by publisher.

Recounts the true story of Pennsylvania Railroad president Alexander Cassatt's ambitious journey to build the railroad by creating a monumental system of electrified tunnels under the Hudson River, Manhattan, and the East River, despite dangerous conditions, corporate sabotage, and his investors' lack of faith in the project.

Describes the world's longest tunnel, the Seikan Railroad Tunnel in Japan, including its size, how it was built, and how it is used.

Provides photographs and information about tunnels, discussing the history of the underground passages and how they were built, and looking at some of the world's best-known tunnels, including the Holland Tunnel, the Chunnel, and others.

Examines one of the longest international construction projects ever undertaken, the Channel Tunnel, the proposed tunnel linking Europe and Great Britain.

Explores the innovation and physical science behind bridges and tunnels, featuring illustrated, step-by-step instructions for twenty-five projects designed to help students learn about the engineering process.

Introduces the history and different types of bridges and tunnels, explains how they are built, and includes related activities and projects.

A brief introduction to tunnels--their types, shapes, and parts, and how they are built.

An introduction to tunnels including their history, how they are made, various kinds of tunnels and their construction, and their uses.