### line:

Absorption line
* are dark regions of an object's spectrum
  - visible as dark spots within the bright stripes of the individual orders
* arise when atoms are in, or near, the ground state, as in a cooler gas.
* cause dark features in the continuum emission where the radiation is removed.
* occur at the same locations but with subtraction of light from the continuum.

Balmer line
* are generally temperature sensitive in all stars.
* fall in the optical.

Bar line
* are lines
  - musical notation
  - vertical lines that intersect the entire stave at regular intervals
* is musical notation

Black line
* are direction of player movement - following the throw
  - old cracks in the ice that have refrozen
  - state highways and other roads
  - the mapped geological faults of the area
* correspond to opening cracks and white lines to closing cracks.
+ Basin (geology), Causes, Death Valley example: Landforms
  * Black lines show some of the major faults that created the valley.

Brown line
* are major roads and highways.
* represent known faults or other geologic features.

Casuistry
* attempts to establish a plan of action to respond to particular facts.
* is argumentation
  - ethic

Coax cable
* is called coaxial because everything is on the same axis.
* resembles cable TV wire.
* semi-rigid round cable.

### line | coax cable:

Ethernet cable
* are coaxial cables
  - part of ethernets
* coax cable

### line:

Coaxial cable
* are cables
  - electrical wire
  - much safer near disks
* can carry hundreds of times more information than telephone wiring.
* has better data transmission rate than twisted pair
  - two conductors that share the same axis
* have a wider bandwidth than twisted pair but less than that available over fibre.
* is also cable
  - vulnerable to being cut by digging or farm machinery
  - an economical method of delivering multiple TV channels to millions of viewers
  - like a fire hose
  - probably the most well-known type of cable
  - the cheapest physical medium for setting up a network
  - used extensively in networking and data communications
  - very expensive and used for high speed access
* looks like cable-TV wiring.
* minimize the amount of jitter in a transmission.
* most common method of video transmission.
* single wire running the length of the cable.
* two wire conductor with a larger bandwidth than twisted pair cable.

### line:

Contour
* are a common source of digital elevation data
  - also important with vegetation lines
  - feet above mean sea level
* are in inches of rainfall
  - meters below sea level
  - millimeters of rainfall
  - milliseconds two-way traveltime below sea level
  - isolines of elevation with a specified interval
  - isotherms of sea-surface temperature, with warmer surface temperature in darkest blue
  - lines that represent regions of equal depth of the sea floor
  - perpendicular to the direction of maximum slope
  - predefined work patterns
  - spacecrafts
  - the brightness of the sodium tail in Rayleighs
  - useful in showing topographic relief across a surface
* can be on top of each other in image space
  - make a face appear soft and delicate, while jagged lines can make one seem rugged
* drawing -A contour drawing simple way to start drawing.
* is an isometric
* lines Contour lines define edges, ridges or outlines of a shape or form.
* relate when their imaginary extensions intersect at an obtuse or right angle.
* represent elevation of surface and are essentially parallel to isobars
  - levels of constant vorticity magnitude
* reveal the relief or topography of a region.
* rows reduce erosion, slow runoff, and increase infiltration.
* show the column of the molecular gas.

### line | contour:

Illusory contour
* activate non-retinotopic areas of human visual cortex.
* are an example of the perceptual grouping of local features into a global percept
  - imaginary boundaries that are commonly perceived in optical illusions