Observation

Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which study the physical world, and the social sciences, which study individuals and societies. While referred to as the formal sciences, the study of logic, mathematics, and theoretical computer science are typically regarded as separate because they rely on deductive reasoning instead of the scientific method as their main methodology. Meanwhile, applied sciences

thumb|The combustion of a match is an observable occurrence, or event, and therefore a phenomenon.

thumbnail|Observing the air traffic in Rõuge, [[Estonia]]

thumb|An audience in Tel Aviv, Israel, waiting to see the [[Batsheva Dance Company]] thumb|Audiences at the 2013 World Championships in Athletics in Moscow, Russia An audience is a group of people who participate in a show or encounter a work of art, literature (in which they are called "readers"), theatre, music (in which they are called "listeners"), video games (in which they are called "players"), or academics in any medium. Audience members participate in different ways in different kinds of art. Some events invite overt audience participation and others allow only modest clapping and cri

thumb|right|Inside a planetarium projection hall.(Belgrade Planetarium, [[Serbia)]] thumb|right|Inside the same hall during projection.(Belgrade Planetarium, [[Serbia)]]A planetarium (: planetariums or planetaria) is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation.

Introspection is the examination of one's own conscious thoughts and feelings. In psychology, the process of introspection relies on the observation of one's mental state, while in a spiritual context it may refer to the examination of one's soul. Introspection is closely related to human self-reflection and self-discovery and is contrasted with external observation.

act of detecting something new

hall designed for anatomical dissection

improvement in individual performance when working with other people rather than alone

Testability is a primary aspect of science and the scientific method. There are two components to testability: Falsifiability or defeasibility, which means that counterexamples to the hypothesis are logically possible. The practical feasibility of observing a reproducible series of such counterexamples if they do exist.

Interpretation of quantum mechanics in which consciousness is postulated to be necessary for the completion of the process of quantum measurement

In philosophy of science, an observation is said to be "theory-laden" when shaped by the investigator's theoretical presuppositions. According to this perspective, observers may have a perspective that presupposes a theory, in which case they may make unnecessary judgments about information observed at the moment of observation. The thesis is chiefly associated with the late 1950s–early 1960s work of Norwood Russell Hanson, Thomas Kuhn, and Paul Feyerabend, though it was likely first put forth some 50 years earlier, at least implicitly, by Pierre Duhem.

type of railway carriage

form of humor

variable that can be observed and directly measured