Synopsis by Alice Day
The engineering expertise that enabled the construction of tunnels is discussed in Technology Starters: Tunnel Vision. In this series aimed at elementary and intermediate grades, the many developments in technology are explored. Explanations are designed for the target age group, and are enhanced with colorful, lively graphics. The difficulties involved in tunnel building is covered, particularly with the construction of the chunnel, which runs beneath the English Channel. The complicated machines used in these processes are demonstrated.