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A chalk line or chalk box is a tool for marking long, straight lines on relatively flat surfaces, much further than is practical by hand or with a straightedge. They may be used to lay out straight lines between two points, or vertical lines by using the weight of the line reel as a plumb line .
The Chalk Line (Spanish: Jaula; transl. 'Cage') [a] [3] is a 2022 Spanish mystery psychological thriller [4] film directed by Ignacio Tatay (in his feature debut) and co-written by Isabel Peña. It stars Elena Anaya .
Chalk and other forms of limestone may be used for their properties as a base. [23] Chalk is a source of quicklime by thermal decomposition, or slaked lime following quenching of quicklime with water. [24] In agriculture, chalk is used for raising pH in soils with high acidity. [25] Small doses of chalk can also be used as an antacid. [26]
A chalk line or chalk box is a tool for marking long, straight lines on relatively flat surfaces, much farther than is practical by hand or with a straightedge. It is an important tool in construction and carpentry, the working of timber in a rough and unplaned state, as it does not require the timber to have a straight or squared edge formed ...
A chalk outline, which was drawn around a person laying on the ground. A chalk outline is a temporary outline, usually of a person, drawn on the ground, usually outlining evidence at a crime scene. The outline provides context for photographs of the crime scene, and assists investigators in preserving the evidence.
Boxes of Hagoromo Fulltouch Chalk, produced by Hagoromo Bungu. Hagoromo Fulltouch Chalk (Japanese: 羽衣フルタッチチョーク, Korean: 하고로모 풀터치 분필) is a South Korean-owned brand of chalk for blackboards, originally produced by Japanese company Hagoromo Bungu (羽衣文具). Production of the chalk began in 1932.
Their most recognizable brand was the Crayola "Gold Medal" line in yellow boxes, which referred to one the company earned with their An-du-Septic dustless chalk during the March 1904 St. Louis World's Fair. They used the award to design a new line of crayons featuring the medal on the front of their box. [20]
The Chalk Group is now divided into a White Chalk Subgroup and a Grey Chalk Subgroup, both of which are further subdivided into formations.These modern divisions replace numerous earlier divisions, references to which occur widely on geological maps and in other geological literature.