### motion | wave:

Gravity wave
* Gravity Waves are a vibration akin to sound waves which travel through space at the speed of light.
* are a phenomenon associated with thunderstorm development.
* are like sounds that travel through deep space at the speed of light
  - proposed to be the formation mechanism of linearly organized mammatus clouds
  - ripples in the overall geometry of space and time
* carry energy and travel at light-speed.
* cause the mirrors to move which modifies a tiny bit of the light.
* deposit momentum in the mesosphere and lower thermosphere as they break.
* provide clues to cataclysmic events, such as the collision of two black holes
  - transport for energy from the lower atmosphere to the middle atmosphere
* travel at the speed of light.

### motion | wave:

Heat wave
* Most heat waves cause destruction
  - visible destruction
* Some heat waves increase electricity.
* Some heat waves lead to exhaustion
  - heat exhaustion
  - take places
* are common across the country during the summer
  - the most lethal type of weather phenomenon, overall
* are, largely by definition, unusual events.
* begins over the Atlantic Coast States, from the Carolinas to southern New England.
* can cause big problems in unair-conditioned places
  - dramatically increase daily water consumption levels
  - last from several days to several weeks
  - stress plants but with enough water most plants can look great in almost any heat
  - thousands of deaths in India and hundreds in central Europe and the United States
* have a special impact on the generation of electricity for air conditioning.
* kill more people each year than hurricanes, tornadoes or volcanoes.
* present a set of identifiable risks, especially in urban areas.
* prolonged period of excessive heat and humidity.
* travel out into the void.

### motion | wave:

Internal wave
* act like surface waves.
* appear to be generated by a dynamic instability.
* are frequent oceanographic features seen throughout the worlds oceans
  - mysterious water movements inside a body of water and invisible from above
  - ubiquitous in the interior of the oceans
* can break in a fashion similar to surface waves on the ocean.
* form surface waves and the surface waves cause teh shaking of the ground
  - waves cause the shaking of the ground
* occur in a great variety of wavelengths
  - both liquid and gaseous phases

L wave
* are even slower and travel all the way along the surface
  - the last to occur and have the longest periods
* cause the most damage and set up tsunamis.
* generate outward from the epicenter on the surface of the earth.

Large wave
* Most large waves are caused by displacement
  - earthquakes
* Some large waves are caused by storms
  - produced by earthquakes
  - located in oceans
* break onshore, which makes for good surfing.
* can severely damage aircraft upon impact.
* crashing onto rocks and cliffs can remove and disperse oil naturally.
* generate plumes of spray and thunderous explosions as they surge into the sea caves.

Larger wave
* carry more energy.
* hold greater volumes of water and thus lose a smaller percentage into the sand.
* move sand from the coastal sand dunes off into the ocean.