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In agriculture, a plowshare or ploughshare (UK; / ˈ p l aʊ ʃ ɛər /) is a component of a plow (or plough). It is the cutting or leading edge of a moldboard which closely follows the coulter (one or more ground-breaking spikes ) when plowing.
An advance on the basic design was the iron ploughshare, a replaceable horizontal cutting surface mounted on the tip of the share. The earliest ploughs with a detachable and replaceable share date from around 1000 BC in the Ancient Near East , [ 32 ] and the earliest iron ploughshares from about 500 BC in China. [ 33 ]
The ploughshare (Hebrew: אֵת ’êṯ, also translated coulter) is often used to symbolize creative tools that benefit humankind, as opposed to destructive tools of war, symbolized by the sword (Hebrew: חֶרֶב ḥereḇ), a similar sharp metal tool with an arguably opposite use.
The vomer (/ ˈ v oʊ m ər /; [1] [2] Latin: vomer, lit. 'ploughshare') is one of the unpaired facial bones of the skull.It is located in the midsagittal line, and articulates with the sphenoid, the ethmoid, the left and right palatine bones, and the left and right maxillary bones.
It is also known as the angonoka, ploughshare tortoise, Madagascar tortoise, or Madagascar angulated tortoise. [1] There may be fewer than 400 of these tortoises left in the wild. It is found only in the dry forests of the Baly Bay area of northwestern Madagascar, near the town of Soalala (including Baie de Baly National Park ).
On September 9, 1980, Daniel Berrigan (above), his brother Philip, and six others (the "Plowshares Eight") began the Plowshares Movement. They illegally trespassed onto the General Electric Nuclear Missile facility in King of Prussia, Pennsylvania, where they damaged nuclear warhead nose cones and poured blood onto documents and files.
A simple drawn plough: 4) marks the coulter (using an early knife-like design) A (US:) colter / (British:) coulter (Latin 'culter' = 'knife') is a vertically mounted component of many ploughs that cuts an edge about 7 inches (18 cm) deep ahead of a plowshare. [1]
A ploughshare or plowshare is a component of a plough or plow. Ploughshare or Plowshare may also refer to: Project Plowshare, United States project to use nuclear explosives for civilian purposes; Ploughshare Innovations Ltd, a technology transfer company owned by the UK Defence Science and Technology Laboratory (Dstl)