Etymology
The term "vertical" is derived from the Latin word "vertex," meaning "top," "summit," or "crown."
Meaning
In geometry, "vertical" refers to a line, plane, or surface that is perpendicular to the horizontal plane or parallel to the plumb line, representing the direction of gravity. It is used to indicate an upright position or an orientation perpendicular to the ground.
Origin
The concept of verticality has its roots in ancient times. In astronomy, the zenith, the point directly overhead, was considered the vertical direction from any point on the Earth's surface. In architecture, the vertical axis determined the symmetry and stability of buildings.
Applications
The term "vertical" is commonly used in various fields, such as:
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