Bridges and Tunnels

Bridges and Tunnels

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Introduces engineering concepts through twenty-five simple experiments that involve building several bridge and tunnel models.

Bridges and Tunnels

Bridges and Tunnels

File Size : 77,77 MB
Total View : 3089 Views
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Bridges and tunnels are lifelines. People have tackled seemingly insurmountable obstacles, including vast canyons and mountain ranges, to design and construct t