### shape | angle:

Right ascension
* celestial longitude measured in the direction of the Earth's rotation.
* coordinate for measuring the east-west location of astronomical objects.
* corresponds to longitude, but different units are used.
  - analogous to longitude for locating positions on the Earth
  - expressed in time units
* is measured around the celestial equator towards the east
  - continuously in a full circle from that equinox towards the east
  - eastward along the celestial equator from the primary direction
* is measured in hours, minutes and seconds
  - units of time rather than degrees of arc
  - one unit of measure for locating an object in the sky
  - similar to longitude on the Earth's surface
* is the celestial equivalent of terrestrial longitude

Solid angle
* Any solid angle is contained by plane angles whose sum is less than four right angles.
* are angles
  - important in measuring the amplitude of dipoles
* is an angle

Vertical angle
* are equal on a sphere
  - to each other
  - non-adjacent angles formed by a pair of intersecting lines
  - pairs of angles formed by two intersecting lines
* have equal measures.

### shape:

Barrel
* Most barrels hold toxic substances.
* allow the wine to breathe and absorb flavor and tannins from the wood.
* are containers
  - cylinders
  - located in markets
  - part of guns
  - storage devices
  - tubes
  - used for holds
  - vessels
* dark color without pitting.
* hold substances
* is the standard unit to measure crude oil and most petroleum products
  - used for water at a barn without running water
* remains as the unit of volume for oil production.
* volume measurement for oil.

### shape | barrel:

Barrel distortion
* means straight lines in real world bow outward in images.
* occurs when the central parts of an image are magnified more than the outer parts.

Barrel racing
* is the oldest and most competitive girl's college rodeo event
  - usualy the only event in which women compete
* woman's event with riders weaving in and out of barrels for the fastest time.

Keg
* are heavy-duty designed for rough handling' commercial applications.
* carry a connotation of excessiveness.
* still contain soda syrups.

Wine barrel
* are the often forgotten link between the grapes and the finished wine.
* come in only a few shapes and sizes and are made exclusively from oak.

Blob
* are excellent for creating lumpy organic shapes
  - films
  - useful for modelling of smooth, organic shapes
* become squares with area proportional to variance, to convey relative weight.
* can fragment into pieces of at least two people.

Body shape
* affects the risk of other cancers.
* can be especially useful for camouflage.
* changes as the hormone testosterone causes muscle mass to develop and height increases.
* is only partly hereditary
  - quite similar across several species of seals

Breast shape
* can also be a function of the skill of the surgeon and the degree of the problem.
* is determined by breast volume and surface area of the skin envelope.

Cavern
* Some caverns have sinkholes in their floors.
* are caves and tunnels that are automatically generated under the ground in various places
  - composed mainly of stone, and expose large amounts of ores and igneous stones
  - enclosures

Cladogram
* Some cladograms show phylogeny.
* are testable hypotheses of phylogenetic relationships
  - trees
* display hypotheses of relationship among organisms.
* take one of two forms, but each shows essentially the same information.
* tree diagram