For a real brick wall, we often use a paste, called mortar, that acts like glue and sticks the bricks together. The taller you build a structure, the more unstable it becomes. Imagine this block ...

A plant cell wall is arranged in layers and contains cellulose microfibrils, hemicellulose, pectin, lignin, and soluble protein. These components are organized into three major layers: the primary ...

Party walls are most commonly found in apartments, condominiums, hotels, and office complexes, where different tenants share a common structure. A party wall separates tenants in joined units in a ...

Construction continued up to the Ming dynasty (1368–1644), when the Great Wall became the world's largest military structure. Its historic and strategic importance is matched only by its architectural ...