### conduction:

Arc
* Most arcs are part of circles.
* accelerate from a common origin in a direction inward from their trajectory.
* also have length.
* are codes to represent specific fault types and certainty of surface location
  - durable constructs, made with a titanium alloy to prevent rusting
  - edges with a direction
  - similar to lightning in that the current flows through a channel of ionized air
  - simply wires that connect the components
* are the directed line segments of the figure
  - way of transitioning from one state to another
* is an acronym synonymous with industriousness and self-sufficiency
  - advocacy organization for people who have disabilities
  - electrical conduction
  - essential for visceral endoderm organization during early embryogenesis
  - the sucessor to R-code
* now have compass points determined by the circle of which the arc part.
* occur when the oil breaks down or is contaminated.
* represent lines that can define linear features or the boundary of areas or polygons.
* usually describe the centreline of a network feature, such as a road centreline.

### conduction | arc:

Corona discharge
* is able to destroy many more airborne contaminants than traditional ionization
  - an arc
  - discharge
* occur quite often during refueling operations.
* occurs by producing controlled sparks in the presence of oxygen.

Flashover
* generate voltage sags which disrupt sensitive machinery in the paper mill.
* is an arc

Bone conduction
* Some bone conduction has vibration.
* is tested by placing a vibrating tuning fork against the head
  - the conduction of sound to the inner ear through the bones of the skull
* plays an important role in self-listening.

Electrical conduction
* easy parameter to use when using metals.
* happens when a material allows an electrical current to pass through it.
* is conductivity

Saltatory conduction
* is metabolically more efficient than electrotonic conduction.
* occurs in myelinated cells.

Thermal conduction
* is responsible for transporting heat through a solid
  - the primary process by which most hot beverage containers lose their heat
* reduces the central temperature and the temperature gradient.
* removes heat from the center.

Conductivity
* Most conductivity comes from inorganic salt
* Most conductivity depends on humidity
  - relative humidity
  - increases temperature
* Some conductivity depends on materials
  - structures
  - tissue structures
  - water temperature
  - has dimensions
  - increases compaction
  - relates to dentistry
* detects mastitis two or more milkings before visible signs become apparent.
* has effects.
* increases elevate temperature
  - with increasing amounts and mobility of ions
* physical phenomenon
* refers to the ability of a material to transmit energy.

### conductivity:

Electrical conductivity
* depends on ions being able to move freely
  - the presence of ions in a solution
* describes a substance s ability to transmit electrical current.
* is especially sensitive to ice acidity
  - the reciprocal quantity of resistivity
* measure of how well a material transports an electric charge.
* physical property.
* useful measure of salinity.
* varies with moisture content.

Hydraulic conductivity
* Some hydraulic conductivity increases compaction.
* decreases with decreasing matric potential in unsaturated soils.
* defines the rate at which a fluid can pass through a porous medium.
* function of the sediment through which water travels.
* highly variable soil property.
* increases for all soils as they dry.
* is similar to permeability
  - the primary variable controlling flow
* property of the porous-fluid system together.