The average annual yield from one coffee tree is the equivalent of 1 to 1 1/2 pounds of roasted coffee. It takes about 4,000 hand-picked green coffee beans to make a pound of coffee.
EYEPIECE
eyepiece, ocular
(noun) combination of lenses at the viewing end of optical instruments
Source: WordNet® 3.1
Etymology
Noun
eyepiece (plural eyepieces)
The lens (or combination of lenses) at the eye end of a microscope or telescope by which the image is viewed.
Source: Wiktionary
Eye"piece`, n. (Opt.)
Definition: The lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Collimating eyepiece. See under Collimate.
– Negative, or Huyghenian, eyepiece, an eyepiece consisting of two plano-convex lenses with their curved surfaces turned toward the object glass, and separated from each other by about half the sum of their focal distances, the image viewed by the eye being formed between the two lenses. it was devised by Huyghens, who applied it to the telescope. Campani applied it to the microscope, whence it is sometimes called Campani's eyepiece.
– Positive eyepiece, an eyepiece consisting of two plano-convex lenses placed with their curved surfaces toward each other, and separated by a distance somewhat less than the focal distance of the one nearest eye, the image of the object viewed being beyond both lenses; -- called also, from the name of the inventor, Ramsden's eyepiece.
– terrestrial, or Erecting eyepiece, an eyepiece used in telescopes for viewing terrestrial objects, consisting of three, or usually four, lenses, so arranged as to present the image of the object viewed in an erect position.
Source: Webster’s Unabridged Dictionary 1913 Edition
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16 May 2024
INDEXATION
(noun) a system of economic regulation: wages and interest are tied to the cost-of-living index in order to reduce the effects of inflation
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