### device | instrument | measuring device:

Caliper
* also work well for measuring diameter.
* are a tool that looks somewhat like a giant tweezers
  - the devices that push the brake pads against the disc
  - two piston units all around
  - used for measuring
* critical measure of uniformity.
* includes sections.
  - the thickness of paper
* logs record borehole diameter.
* refers to the diameter of the trunk measured just above the ground
  - thickness of the paper in thousandths of an inch or mils

### device | instrument | measuring device | caliper:

Micrometer
* are calipers
  - instruments
* have better resolution yet, but generally have a smaller measurement range.
* is an instrument

### device | instrument | measuring device:

Calorimeter
* Some calorimeters measure energy
  - heat energy
* are able to get the best spectral resolution of any non-dispersive spectrometer.
* are devices that take a completely different approach
  - to measure heat released by a reaction
  - laboratory equipment
  - one of the best tools to study kinetics
  - universal detectors for chemical reactions and physical processes
* form the heart of modern high energy physics experiments.
* measure the energy lost and determine the total energy of the incoming particle
  - of hadrons, photons, and electrons
* measuring device.

Dropper
* includes sections.
* snap to use.

Gage
* are a labor savings option that allows visual checks of tire pressure.
* have capacity.
  - the index case of an individual who suffered major personality changes after brain trauma

### device | instrument | measuring device | gage:

Anemometer
* Some anemometers have a device that measures the speed of the wind.
* are common at weather stations
  - gauges
  - important tools for meteorologist s, who study weather pattern s
* are used to measure wind speed instead of wind direction
  - speeds
* exist for measurement of wind speed.
* generally use several cups to catch wind and turn a dial that displays wind speed.
* have a rotating mass which requires some amount of time to fully respond to the wind.
* heat a wire to a specified temperature and then measure the rate of cooling.
* measure the apparent wind speed and indicate the apparent wind direction
  - wind speed and determine wind direction

Manometer
* are useful for measuring the pressure inside of a closed system.
* show the pressure differences.

Rain gauge
* Some rain gauges measure rain.
* are gauges
  - important for lawn and garden care
  - placed in open areas where there are no obstructions
* collect and measure the amount of rain that falls on a particular spot.

Gauge
* Some gauges are pressure transducers, which are tubes that pump nitrogen bubbles into a stream.
* are distance
  - standards
* indicate the level and stability of vacuum found in the manifold and vacuum reservoir.

### device | instrument | measuring device | gauge:

Narrow gauge
* is used to build railroads for less money , because the smaller track costs less.
* refers to the distance between the rails.
+ Rail gauge: Rail transport
  * Broad gauge is usually used where the track needs to have heavy things moving on it. Narrow gauge is used to build railroads for less money, because the smaller track costs less. Places where different gauges meet are called break of gauge.

Tide gauge
* are simple floats that move up and down as the level of the sea changes.
* measure sea level changes relative to the land on which the the tide gauge rests.

Odometer
* Some odometers are part of ambulances
  - automobiles
  - cars
  - go-karts
  - motorbikes
  - taxis
  - trucks
* is calibrated in miles rather than kilometres.