Observation in the natural sciences is an act or instance of noticing or perceiving and the acquisition of information from a primary source. In living...

An observation deck, observation platform, or viewing platform is an elevated sightseeing platform usually situated upon a tall architectural structure...

An observation post (commonly abbreviated OP), temporary or fixed, is a position from which soldiers can watch enemy movements, to warn of approaching...

statistics, a unit of observation is the unit described by the data that one analyzes. A study may treat groups as a unit of observation with a country as...

Medical observation is a medical service aimed at continued care of selected patients, usually for a period of 6 to 24 (sometimes more) hours, to determine...

An army of observation is a military body whose purpose is to monitor a given area or enemy body in preparation for possible hostilities. Some of the...

Earth observation (EO) is the gathering of information about the physical, chemical, and biological systems of the planet Earth. It can be performed via...

Observation Peak may refer to: Observation Peak (Alaska), near Juneau Observation Peak (Alberta), Banff National Park, Alberta, Canada Observation Peak...

biodiversity observations. Observation.org may be accessed via its website or from its mobile applications like ObsIdentify. The Observation.org database holds...

Naturalistic observation, sometimes referred to as fieldwork, is a research methodology in numerous fields of science including ethology, anthropology...

An observation tower is a structure used to view events from a long distance and to create a full 360 degree range of vision to conduct long distance...

Observational comedy is a form of humor based on the commonplace aspects of everyday life. It is one of the main types of humor in stand-up comedy. In...

The Bonilla observation was an astronomical event in 1883 in which hundreds of unidentified flying objects were observed and photographed by Mexican astronomer...

Mass-Observation is a United Kingdom social research project; originally the name of an organisation which ran from 1937 to the mid-1960s, and was revived...

An observation balloon is a type of balloon that is employed as an aerial platform for gathering intelligence and spotting artillery. The use of observation...

Natural observation may refer to: Observational study Naturalistic observation Self-observation This disambiguation page lists articles associated with...

Participant observation is one type of data collection method by practitioner-scholars typically used in qualitative research and ethnography. This type...

Observational astronomy is a division of astronomy that is concerned with recording data about the observable universe, in contrast with theoretical astronomy...

Analog observation is, in contrast to naturalistic observation, a research tool by which a subject is observed in an artificial setting. Typically, types...

the social sciences, observational research (or field research) is a social research technique that involves the direct observation of phenomena in their...

Observer effect, observer bias, observation effect, or observation bias may refer to a number of concepts, some of them closely related: Hawthorne effect...

Wildlife observation is the practice of noting the occurrence or abundance of animal species at a specific location and time, either for research purposes...

In statistics, an influential observation is an observation for a statistical calculation whose deletion from the dataset would noticeably change the...

An observation car/carriage/coach (in US English, often abbreviated to simply observation or obs) is a type of railroad passenger car, generally operated...

In observational astronomy, the observation arc (or arc length) of a Solar System body is the time period between its earliest and latest observations...

Described by its operators as an "observation wheel" and claimed to be "the Southern Hemisphere's only giant observation wheel", it is 120 m (394 ft) tall...

knowledge and ideas. Observation may also refer to: Observation in auditing, a procedure to obtain audit evidence. Observation tower Observation deck Observer...

Solar observation is the scientific endeavor of studying the Sun and its behavior and relation to the Earth and the remainder of the Solar System. Deliberate...

USNS Observation Island (T-AGM-23) was built as the Mariner-class merchant ship Empire State Mariner for the United States Maritime Commission, launched...

objects. It is generally accepted that unaided perception constitutes observation, but it is disputed to what extent objects accessible only to aided perception...