About 70 results for ‘Geometry’
-
Geometry
Geometry is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. A mathematician who works in the field of geometry is called a geometer. Geometry arose independently in a number of early cultures as a body of practical knowledge concerning lengths, areas, and volumes, with elements of a formal mathematical science emerging in the West as early as Thales (6th Century BC). By the 3rd century BC geometry was put into an axiomatic form by Euclid, whose treatment—Euclidean geometry—set a standard for many centuries to follow. Archimedes developed ingenious techniques for calculating areas and volumes, in many ways anticipating modern integral calculus. The field of astronomy, especially mapping the positions of the stars and planets on the celestial sphere and describing the relationship between movements of celestial bodies, served as an important source of geometric problems during the next one and a half millennia. Both geometry and astronomy were considered in the classical world to be part of the Quadrivium, a subset of the seven liberal arts considered essential for a free citizen to master. The introduction of coordinates by René Descartes and the concurrent development of algebra marked a new stage for geometry, since geometric figures, such as plane curves, could now be represented analytically, i.e. , with functions and equations. This played a key role in the emergence of infinitesimal calculus in the 17th century. Furthermore, the theory of perspective showed that there is more to geometry than just the metric properties of figures: perspective is the origin of projective geometry. The subject of geometry was further enriched by the study of intrinsic structure of geometric objects that originated with Euler and Gauss and led to the creation of topology and differential geometry. In Euclid's time there was no clear distinction between physical space and geometrical space. Since the 19th-century discovery of non-Euclidean geometry, the concept of space has undergone a radical transformation, and the question arose: which geometrical space best fits physical space? With the rise of formal mathematics in the 20th century, also 'space' (and 'point', 'line', 'plane') lost its intuitive contents, so today we have to distinguish between physical space, geometrical spaces (in which 'space', 'point' etc. still have their intuitive meaning) and abstract spaces. Contemporary geometry considers manifolds, spaces that are considerably more abstract than the familiar Euclidean space, which they only approximately resemble at small scales. These spaces may be endowed with additional structure, allowing one to speak about length. Modern geometry has multiple strong bonds with physics, exemplified by the ties between pseudo-Riemannian geometry and general relativity. One of the youngest physical theories, string theory, is also very geometric in flavour. While the visual nature of geometry makes it initially more accessible than other parts of mathematics, such as algebra or number theory, geometric language is also used in contexts far removed from its traditional, Euclidean provenance.
-
-
- Artist(s):
- Henri-Pierre Danloux
L'ARCHITECTE NICOLAS LENOIR, DIT LE ROMAIN (1726-1810)
-
- Field(s):
- Painting
-
- Portrayed subject:
- Architect
- Geometry
- Man
- Portrait
- Scientific instrument
-
- Date:
- 18th century
-
-
L'ARCHITECTURE
-
- Field(s):
- Painting
-
- Portrayed subject:
- Allegory
- Architecture
- Geometry
- Putto
- Scientific instrument
-
- Date:
- 18th century
-
-
-
- Designation:
- cabinet (portatif) | cabinet à poser
-
- Portrayed subject:
- Acanthus (ornament)
- Allegory
- Compass (drafting)
- Feather
- Flower
- Geometry
- …
-
- Date:
- 17th century
-
La Muse Urania
-
- Field(s):
- Painting
-
- Portrayed subject:
- Armillary sphere
- Astronomy
- Compass (drafting)
- Geometry
- Muse
- Sitting
- …
-
- Date:
- 17th century
-
-
La Géométrie
-
- Field(s):
- Painting
-
- Portrayed subject:
- Allegory
- Compass (drafting)
- Geometry
- Woman
-
- Date:
- 17th century
-
-
CROQUIS ALLEGORIQUES SUR L'ARCHITECTURE, L'ASTROLOGIE, L'...
-
- Field(s):
- Drawing
-
- Portrayed subject:
- Allegory
- Architecture
- Astrology
- Geometry
- Madonna (art)
-
- Date:
- 16th century
-
-
LA GEOMETRIE, DESSIN ALLEGORIQUE, ARCHITECTURE ET PERSONN...
-
- Field(s):
- Drawing
-
- Portrayed subject:
- Allegory
- Architecture
- Geometry
-
- Date:
- 16th century
-
-
-
- Artist(s):
- Michel Corneille the Elder
ASPASIE AU MILIEU DES PHILOSOPHES DE LA GRECE
-
- Field(s):
- Painting
-
- Portrayed subject:
- Aspasia
- Book
- Geometry
- Philosophy
- Scientific instrument
-
- Date:
- 17th century
-
-
La Géométrie
-
- Field(s):
- Sculpture
-
- Portrayed subject:
- Compass (drafting)
- Geometry
- Hairstyle
- Symbol
- Woman
-
- Date:
- 17th century
- 18th century
-
-
-
- Artist(s):
- Jean-Honoré Fragonard
- Raphael
Jeune garçon agenouillé, d'après Raphaël
-
- Field(s):
- Drawing
-
- Portrayed subject:
- Geometry
-
- Date:
- 18th century
-
-
-
- Artist(s):
- Gobelins Manufactory
- Noël Coypel
Triomphes des Dieux (3e tenture à or) : Le triomphe de la...
-
- Field(s):
- Tapestry
-
- Portrayed subject:
- Allegory
- Arithmetic
- Astronomy
- Dialectic
- Geometry
- Liberal arts
- …
-
- Date:
- 18th century
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- boîte à éponge (ronde) ; couvercle (rond)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- tasse ; soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- tasse ; soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- tasse ; soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- tasse ; soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- tasse ; soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- tasse
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- soucoupe (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- tasse
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- assiette (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- assiette (ronde)
-
-
-
- Field(s):
- Ceramic
-
- Designation:
- assiette (ronde)
-