Reed level
Encyclopedia
A reed level is an Arab
ic invention for determining level
for the purpose of construction
. A hole is put through a long straight reed and water is poured into the center. When the flow out of both sides is equal, the reed is level. The device serves the same purpose as a spirit level
.
Arab
Arab people, also known as Arabs , are a panethnicity primarily living in the Arab world, which is located in Western Asia and North Africa. They are identified as such on one or more of genealogical, linguistic, or cultural grounds, with tribal affiliations, and intra-tribal relationships playing...
ic invention for determining level
Horizontal plane
In geometry, physics, astronomy, geography, and related sciences, a plane is said to be horizontal at a given point if it is perpendicular to the gradient of the gravity field at that point— in other words, if apparent gravity makes a plumb bob hang perpendicular to the plane at that point.In...
for the purpose of construction
Construction
In the fields of architecture and civil engineering, construction is a process that consists of the building or assembling of infrastructure. Far from being a single activity, large scale construction is a feat of human multitasking...
. A hole is put through a long straight reed and water is poured into the center. When the flow out of both sides is equal, the reed is level. The device serves the same purpose as a spirit level
Spirit level
A spirit level or bubble level is an instrument designed to indicate whether a surface ishorizontal or vertical . Different types of spirit levels may be used by carpenters, stonemasons, bricklayers, other building trades workers, surveyors, millwrights and other metalworkers, and in some...
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