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One basic model describing the geometry of the optical system is the Arizona Eye Model. [2] This model describes the accommodation of the eye geometrically. Photons of light falling on the light-sensitive cells of the retina ( photoreceptor cones and rods ) are converted into electrical signals that are transmitted to the brain by the optic ...
The icosahedral graph is a graceful graph, meaning that each vertex can be labeled with an integer between 0 and 30 inclusive, in such a way that the absolute difference between the labels of an edge's two vertices is different for every edge. [26]
Motion (geometry) – Transformation of a geometric space preserving structure; Motion capture – Process of recording the movement of objects or people; Displacement – Vector relating the initial and the final positions of a moving point
Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the social sciences (e.g., economics, psychology, and sociology), which ...
The ancient Greeks pioneered in many fields that rely on systematic thought, including logic, biology, geometry, government, geography, medicine, history, [345] philosophy, [346] physics, and mathematics. [347] They introduced important literary forms as epic and lyrical poetry, history, tragedy, comedy and drama.
Inkscape is a vector graphics editor.It is used for both artistic and technical illustrations such as cartoons, clip art, logos, typography, diagrams, and flowcharts.It uses vector graphics to allow for sharp printouts and renderings at unlimited resolution and is not bound to a fixed number of pixels like raster graphics.
Iran, [a] [b] officially the Islamic Republic of Iran (IRI) [c] and also known as Persia, [d] is a country in West Asia.It borders Turkey to the northwest and Iraq to the west, Azerbaijan, Armenia, the Caspian Sea, and Turkmenistan to the north, Afghanistan to the east, Pakistan to the southeast, the Gulf of Oman and the Persian Gulf to the south.