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What (who) is surface-based observation - definition

ORGANIZATION

Mass observation surveys; Mass Observation; Mass observation; Mass-Observation Archive

Bonilla observation

FIRST SIGHTING OF UNIDENTIFIED FLYING OBJECTS

Jose Bonilla Observation; José Bonilla Observation

On August 12, 1883, the astronomer José Bonilla reported that he saw more than 300 dark, unidentified objects crossing before the Sun while observing sunspot activity at Zacatecas Observatory in Mexico. He was able to take several photographs, exposing wet plates at 1/100 second.

https://en.wikipedia.org/wiki/Bonilla_observation

Surface finish

SMALL, LOCAL DEVIATIONS OF A SURFACE FROM A PERFECTLY FLAT IDEAL; DEFINED BY THE THREE CHARACTERISTICS OF LAY, SURFACE ROUGHNESS, AND WAVINESS

Surface texture symbol; Surface texture; Surface topography

Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness.. It comprises the small, local deviations of a surface from the perfectly flat ideal (a true plane).

https://en.wikipedia.org/wiki/Surface_finish

Parametric surface

SURFACE IN THE EUCLIDEAN SPACE

Parametrized surface; Parametrised surface; Parametrized Surface; Surface parameterisation; Parametric object

A parametric surface is a surface in the Euclidean space \R^3 which is defined by a parametric equation with two parameters Parametric representation is a very general way to specify a surface, as well as implicit representation. Surfaces that occur in two of the main theorems of vector calculus, Stokes' theorem and the divergence theorem, are frequently given in a parametric form.

https://en.wikipedia.org/wiki/Parametric_surface

Wikipedia

Mass-Observation

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 in 1981 at the University of Sussex.

Mass-Observation originally aimed to record everyday life in Britain through a panel of around 500 untrained volunteer observers who either maintained diaries or replied to open-ended questionnaires (known as directives). The organisation also paid investigators to anonymously record people's conversation and behaviour at work, on the street and at various public occasions, including public meetings and sporting and religious events.

https://en.wikipedia.org/wiki/Mass-Observation