Road Construction Methods have changed a lot since the first roads were built in about…

Wattle and daub, in building construction, method of constructing walls in which vertical wooden stakes, or…

Tepee, also spelled tipi, conical tent most common to the North American Plains Indians. Although a number of Native American groups…

Yurt, also spelled yurta, Mongol ger, tentlike Central Asian nomad’s dwelling, erected on wooden poles and covered…

Machine, device, having a unique purpose, that augments or replaces human or animal effort for…

Humidity, the amount of water vapour in the air. It is the most variable characteristic of…

Environment, the complex of physical, chemical, and biotic factors that act upon an organism or…

Concrete, in construction, structural material consisting of a hard, chemically inert particulate substance, known as aggregate (usually sand and gravel),…

Brick and tile, structural clay products, manufactured as standard units, used in building construction. The brick, first…