### science | geology:

Seismology
* also studies the propagation of seismic energy through the Earth.
* broad and rapidly developing field.
* can also serve as a deterrent for countries trying to test clandestine weapons.
* is the most fruitful method of probing the structure of the deep Earth
  - science of earthquakes
* is the study of earthquakes and related phenomena
  - seismic waves that move through and around the earth
  - how sound or seismic waves move through the earth's crust
  - traditional workhorse for imaging the interior of the earth
* provides a model of the internal structure of the mantle.
* studies the frequency , type and size of earthquakes over a period of time.
* vocabulary-rich field.
+ Earthquake: Plate tectonics
  * There are large earthquakes and small earthquakes. Big earthquakes can take down buildings and cause death and injury. The study of earthquakes is called seismology. Seismology studies the frequency, type and size of earthquakes over a period of time.

### science | geology | stratigraphy:

Sequence stratigraphy
* chronostratigraphic method of correlation.
* new method for correlating and analyzing sedimentary rocks.

Volcanology
* branch of geology that studies volcanoes
  - which studies volcanoes and their activities
  - geology, the science of learning about the earth
* can use people with diverse backgrounds.
* is the science dealing with the study of volcanoes
  - scientific study of volcanic phenomena
* is the study of volcanoes, their origin, behavior and mode of occurrence
  * The term 'volcanology' comes from the Latin word 'vulcan', the Roman god of fire. Volcanology sub-field of geology

Good science
* continuing discussion between many people.
* is the basis for good management decisions.
* requires studying molecular behavior directly, in the laboratory.
* tries to find general rules of nature using objective evidence.

Grammar
* Find the rules of a language or learn a new language.
* Some grammar can help people understand why they are saying what they are saying.
* are structures.
* is science
* usually classify verbs as regular and irregular.
* vary from language to language.

### science | grammar:

Descriptive grammar
* categorizes the parts of speech and sentence types in English.
* deals with how language is actually used.

Semantic grammar
* are different in spirit.
* encode the semantics in the grammar itself.

### science:

Group theory
* branch of mathematics which studies symmetry.
* can be though of as the study of symmetry in the abstract.
* clear example of abstraction in modern mathematics.
* crops up in various musical contexts.
* has many applications in science, especially in physics and crystallography
  - some small applications in musics, art and architecture
* is also useful in studying the symmetry of molecular orbitals
  - developed from first principles and applied to molecular systems
  - introduced as an aid for understanding spectroscopic selection rules
  - much used for the study of molecular symmetries
  - paleontology
  - the mathematics behind the representation of all modern physics
* particularly fertile field for the design of practical algorithms.
* powerful mathematical technique for studying symmetry.
* requires only that a mathematical system obey a few simple rules.
+ Molecular symmetry: Symmetry :: Theoretical chemistry
  * Molecular symmetry can be studied several different ways. Group theory is the most popular idea. Group theory is also useful in studying the symmetry of molecular orbitals. Another idea on a larger scale is the use of crystal systems to describe crystallographic symmetry in bulk materials.

History of science
* are history.
* is an academic discipline, with an international community of specialists.