machines & structures library
Learn about Machines & Structures and get information on topics related to Machines & Structures.
Featured Article: Bulldozer
Bulldozer is an earth-moving machine. See more »
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Air lock
Air lock is a device that permits people or materials to pass in or out of a structure called a pneumatic caisson.
See more »Caisson
Caisson, KAY son, in building, is a watertight chamber that is used in the construction of building foundations, bridges, tunnels, and other structures.
See more »Trestle
Trestle, in engineering, is a structure used to support railroad tracks or a road over a valley, or at a crossing point over railroad tracks or a road.
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