### device | machine | motor | engine | generator:

Alternator
* Most alternators provide a signal that can be used to indicate how fast the alternator is turning.
* Most alternators use a rotating magnetic field with a stationary armature
  - field with a stationary armature. * field with a stationary armature. The armature reacts to the rotating field and carries the current caused by the rotation
* are a common failure item on cars
* are part of cars
  - electrical systems
* provide energy for the vehicle electrical system.

Dynamo
* Some dynamos produce particles.
* burn out halogen light bulbs.
* includes field magnets
  - power trains
  - sections

Electric generator
* Most electric generators convert energy
  - mechanical energy
  - make electricity
  - produce electricity
* Most electric generators transform energy
* are a major source of NOx emissions
  - significant gas user
  - powered through steam, water or air
* convert mechanical energy into electric energy

### device | machine | motor | engine | generator:

Oscillator
* Many oscillators use class C bias to increase efficiency.
* Most oscillators operate in saturation.
* also give an insight into the cyclical nature of markets.
* are everywhere in electronics
  - most useful for stocks or indices that are trading sideways
  - powerful technical tools
  - safer and more efficient but also more costly to operate
  - voltage regulated and temperature compensated
* determine the short-term movement of a stock.
* exhibit a variety of instabilities.
* generally supply repeating signals which are used as sound sources.
* generate a signal of a certain frequency.
* have a spray arm that flips back and forth instead of revolving
  - resonance property
* help identify overbought and oversold markets.
* normally peak and bottom at roughly the same time as prices.
* produce electrical fluctuations that repeat in a consistent and periodic manner.
* thing that generates sound.
* usually involve moving averages.

### device | machine | motor | engine | generator | oscillator:

Crystal oscillator
* are low cost and provide excellent stability
  - one of the fundamental building blocks of electronic systems
* drift over time.
* is an oscillator
* provide a simple solution for precise, stable, and calibration-free clocks.

Harmonic oscillator
* go forever.
* model for molecular vibrations and rigid rotator is for molecular rotation.

Ozone generator
* Most ozone generators use a corona spark method to produce the ozone.
* Some ozone generators kill mites.
* kill mites and destroy allergens.

Power generator
* are expensive and out of reach for most people.
* pay emissions fees for generating electricity with coal.

Turbine generator
* are large magnets inside metal rings that are wrapped with wires.
* utilize the steam to generate electricity at high voltage.

Wind generator
* give off a low frequency sound which shakes objects in near by homes.
* have lots of moving parts.
* help supply power, while catchment systems trap rainwater in cisterns.
* produce varying amounts of power depending on wind speed.
* run day and night.
* use large turbines that look like the propeller of an airplane
  - the wind to generate DC electrical power

Heat engine
* All heat engines have the common property of turning internal energy into useful macroscopic energy.
* Most heat engines burn gasoline to produce heat
  - generate energy
* Some heat engines use steam.
* are engines
  - the most common form of power for moving vehicles
* is an engine
* produce electricity.