Aperture vs Notch - What's the difference?
aperture | notch | Related terms |
An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall.
* Gilpin
* Owen
(optics) Something which restricts the diameter of the light path through one plane in an optical system.
(astronomy, photography) The diameter of the aperture (in the sense above) which restricts the width of the light path through the whole system. For a telescope, this is the diameter of the objective lens. e.g. a telescope may have a 100 cm aperture.
(spaceflight, communications) The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array .
(mathematics, rare, of a right circular cone) The maximum angle between the two generatrices.
A V-shaped cut.
Such a cut, used for keeping a record
An indentation.
A mountain pass; a defile
(informal) A level or degree.
* 2014 , Daniel Taylor, "
To cut a notch in (something).
To record (a score or similar) by making notches on something.
To join by means of notches.
To achieve (something).
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Aperture is a related term of notch.
As nouns the difference between aperture and notch
is that aperture is an opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall while notch is a v-shaped cut.As a verb notch is
to cut a notch in (something).aperture
English
Noun
(en noun)- an aperture between the mountains
- the back aperture of the nostrils
- If the generatrix makes an angle ? to the axis, then the aperture is 2?.
Usage notes
The aperture of microscopes is often expressed in degrees, called also the angular aperture, which signifies the angular breadth of the pencil of light which the instrument transmits from the object or point viewed; as, a microscope of 100° aperture.Derived terms
* aperture priorityExternal links
* * ----notch
English
Noun
(es)- ''The notches in that tribe's warrior axe handles stand for killed enemies.
- ''This car is a notch better than the other.
World Cup 2014: Uruguay sink England as Suárez makes his mark," guardian.co.uk , 20 June:
- A better team might also have done more to expose Uruguay’s occasionally brittle defence, but England’s speed of thought and movement in their attacking positions was a good notch or two down from the Italy game.
Derived terms
* notch on one's bedpost, notch on the bedpost * notchback * notchboard * top notchVerb
(es)- The tribe's hunters notch their kills by notches on each's axe's handle.
- The team notched a pair of shutout wins on Sunday.