### action | movement | rotation:

Earth rotation
* Earth Rotations Consider first Earth rotations.
* is now slower than it was in that period, about a century ago.

Job rotation
* is practiced widely to help people develop their potential in new areas
  - the systematic shifting of employees from one job to another
* requires workers to move between different tasks at fixed or irregular periods of time.

Mental rotation
* is thought to help people find their way, according to researchers.
* specific example of spatial transformation.

### action | movement | rotation:

Pronation
* are rotation.
* assist on posture and function in forearm and hand.
* can be a major contributor to knee, hip and back pain.
* helps prevent injury by distributing the force of impact with the ground.
* is movement of the forearm in which the palm is turned posterior
* is the distinctive inward role of the foot as the arch collapses
  - movement of crossing the radius over the ulna
  - when the feet slant inward while standing
* leaning inward of the ankles toward the center line.
* natural cushioning mechanism.
* natural, biomechanical motion of the foot.
* occurs when the foot flattens out when weight is applied
  - has excessive mobility, leading to flattening of the arch
* shortens the foot, which helps it to clear the ground.
* slight inward rolling from the outside back of the heel to the inside forefoot.

### action | movement | rotation | pronation:

Excessive pronation
* involves increased internal rotation of the tibia.
* is another cause of shin splints.

Solar rotation
* accounts for the new location of the coronal hole.
* coupled with solar wind expansion distort the sheet into a wavy spiral shape.

Spin
* acts as a catalyst.
* are also aerobatic maneuvers
  - drives
  - renditions
  - turns
* is rotation
* rotate around the direction of the external magnetic field.
* still account for a large percentage of fatal accidents in both sailplanes and airplanes.

Supination
* are rotation.
* happens pretty much exclusively to runners with rigid feet, often with high arches.
* is movement of the forearm in which the palm is turned anterior
* is the opposite motion of pronation
  - slight outward roll which makes the foot more rigid and ready for push-off

Rush
* absorb moisture, thus lowering humidity in a room.
* are flow
  - marsh plants
  - mostly herbaceous, but one, the palmiet, native to South Africa, woody shrub
  - outburst
  - runs
  - worldwide in distribution but are most abundant in moist, cool habitats
* cause rushs.
* differ from grasses and sedges in that their fruits are capsules.
  - when fraternities recruit new members
* occurs during winter and spring quarters.
* provide important habitat for waterfowl and other wildlife.

### action | movement | rush:

Black rush
* is one of the dominant marsh species of the southern Atlantic and Gulf coasts.
* produces large amounts of belowground biomass which serves to consolidate marsh surfaces.
* turns a rich tawny color when dried.

Soft rush
* has a lateral inflorescence that appears to erupt from the side of the stem.
* occurs in shallow marshes, inland fresh meadows, borders of bogs and along shores.

Seasonal movement
* Some seasonal movement involves migration.
* follows general patterns
* follows same general patterns
* vary greatly with ice conditions and food availability.

Spinal movement
* consist of flexion-extension, axial rotation, and lateral flexion.
* is restricted severly and pain is relieved by rest.