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Top-left Lighting
Top-left lighting is an artistic convention in which illustrations are produced so that the light appears to come from the top left of the picture. The vertical element of the convention comes from the human intuition that sunlight comes from above. Most people prefer lighting from the left when resolving a convex–concave ambiguity, and this preference may be stronger for right-handed people. This is reflected in Roman mosaics and in Renaissance, baroque and impressionist art. In cartography, the predominant custom of placing the shadow on the right-hand side of hill profiles was established during the 15th century. Computer interfaces tend to use top left lighting as well (cf. Windows 9x and macOS screenshot), although this trend has gradually shifted more towards light coming straight from the top (cf. Android key light.) There are notable exceptions to this convention, such as Sandro Botticelli's ''The Birth of Venus'' due to the point of view which may represent geogra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Still Life Carvaggio
A still is an apparatus used to distillation, distill liquid mixtures by heating to selectively Boiling, boil and then cooling to Condensation, condense the vapor. A still uses the same concepts as a basic distillation apparatus, but on a much larger scale. Stills have been used to produce perfume and medicine, water for injection (WFI) for pharmaceutical use, generally to separate and purify different chemicals, and to produce distilled beverages containing ethanol. Application Since ethanol boiling point, boils at a much lower temperature than water, simple distillation can separate ethanol from water by applying heat to the mixture. Historically, a copper vessel was used for this purpose, since copper removes undesirable sulfur-based compounds from the alcohol. However, many modern stills are made of stainless steel pipes with copper linings to prevent erosion of the entire vessel and lower copper levels in the waste product (which in large distilleries is processed to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Right-handedness
In human biology, handedness is an individual's preferential use of one hand, known as the dominant hand, due to it being stronger, faster or more dextrous. The other hand, comparatively often the weaker, less dextrous or simply less subjectively preferred, is called the non-dominant hand. In a study from 1975 on 7688 children in US grades 1-6, Left handers comprised 9.6% of the sample, with 10.5% of male children and 8.7% of female children being left-handed. Handedness is often defined by one's writing hand, as it is fairly common for people to prefer to do some tasks with each hand. There are examples of true ambidexterity (equal preference of either hand), but it is rare—most people prefer using one hand for most purposes. Most of the current research suggests that left-handedness has an epigenetic marker—a combination of genetics, biology and the environment. Because the vast majority of the population is right-handed, many devices are designed for use by right-hande ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Rome
In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 BC), Roman Republic (509–27 BC) and Roman Empire (27 BC–476 AD) until the fall of the western empire. Ancient Rome began as an Italic settlement, traditionally dated to 753 BC, beside the River Tiber in the Italian Peninsula. The settlement grew into the city and polity of Rome, and came to control its neighbours through a combination of treaties and military strength. It eventually dominated the Italian Peninsula, assimilated the Greek culture of southern Italy ( Magna Grecia) and the Etruscan culture and acquired an Empire that took in much of Europe and the lands and peoples surrounding the Mediterranean Sea. It was among the largest empires in the ancient world, with an estimated 50 to 90 million inhabitants, roughly 20% of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosaic
A mosaic is a pattern or image made of small regular or irregular pieces of colored stone, glass or ceramic, held in place by plaster/mortar, and covering a surface. Mosaics are often used as floor and wall decoration, and were particularly popular in the Ancient Roman world. Mosaic today includes not just murals and pavements, but also artwork, hobby crafts, and industrial and construction forms. Mosaics have a long history, starting in Mesopotamia in the 3rd millennium BC. Pebble mosaics were made in Tiryns in Mycenean Greece; mosaics with patterns and pictures became widespread in classical times, both in Ancient Greece and Ancient Rome. Early Christian basilicas from the 4th century onwards were decorated with wall and ceiling mosaics. Mosaic art flourished in the Byzantine Empire from the 6th to the 15th centuries; that tradition was adopted by the Norman Kingdom of Sicily in the 12th century, by the eastern-influenced Republic of Venice, and among the Rus. Mosaic fell ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renaissance Painting
Renaissance art (1350 – 1620 AD) is the painting, sculpture, and decorative arts of the period of European history known as the Renaissance, which emerged as a distinct style in Italy in about AD 1400, in parallel with developments which occurred in philosophy, literature, music, science, and technology. Renaissance art took as its foundation the art of Classical antiquity, perceived as the noblest of ancient traditions, but transformed that tradition by absorbing recent developments in the art of Northern Europe and by applying contemporary scientific knowledge. Along with Renaissance humanist philosophy, it spread throughout Europe, affecting both artists and their patrons with the development of new techniques and new artistic sensibilities. For art historians, Renaissance art marks the transition of Europe from the medieval period to the Early Modern age. The body of art, painting, sculpture, architecture, music and literature identified as "Renaissance art" was primar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baroque Painting
Baroque painting is the painting associated with the Baroque cultural movement. The movement is often identified with Absolutism, the Counter Reformation and Catholic Revival,Counter Reformation from '''', latest edition, full-article. but the existence of important Baroque art and in non-absolutist and states throughout Western Europe underscores its w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impressionism
Impressionism was a 19th-century art movement characterized by relatively small, thin, yet visible brush strokes, open Composition (visual arts), composition, emphasis on accurate depiction of light in its changing qualities (often accentuating the effects of the passage of time), ordinary subject matter, unusual visual angles, and inclusion of movement as a crucial element of human perception and experience. Impressionism originated with a group of Paris-based artists whose independent exhibitions brought them to prominence during the 1870s and 1880s. The Impressionists faced harsh opposition from the conventional art community in France. The name of the style derives from the title of a Claude Monet work, ''Impression, soleil levant'' (''Impression, Sunrise''), which provoked the critic Louis Leroy to coin the term in a Satire, satirical review published in the Parisian newspaper ''Le Charivari''. The development of Impressionism in the visual arts was soon followed by analogo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartographic Relief Depiction
Terrain cartography or relief mapping is the depiction of the shape of the surface of the Earth on a map, using one or more of several techniques that have been developed. Terrain or relief is an essential aspect of physical geography, and as such its portrayal presents a central problem in cartographic design, and more recently geographic information systems and geovisualization. Hill profiles The most ancient form of relief depiction in cartography, hill profiles are simply illustrations of mountains and hills in profile, placed as appropriate on generally small-scale (broad area of coverage) maps. They are seldom used today except as part of an "antique" styling. Physiographic illustration In 1921, A.K. Lobeck published ''A Physiographic Diagram of the United States'', using an advanced version of the hill profile technique to illustrate the distribution of landforms on a small-scale map.Lobeck, A.K. (1921''A Physiographic Diagram of the United States'' A.J. Nystrom & Co., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Birth Of Venus (Botticelli)
''The Birth of Venus'' ( it, Nascita di Venere ) is a painting by the Italian artist Sandro Botticelli, probably executed in the mid 1480s. It depicts the goddess Venus arriving at the shore after her birth, when she had emerged from the sea fully-grown (called Venus Anadyomene and often depicted in art). The painting is in the Uffizi Gallery in Florence, Italy. Although the two are not a pair, the painting is inevitably discussed with Botticelli's other very large mythological painting, the '' Primavera'', also in the Uffizi. They are among the most famous paintings in the world, and icons of the Italian Renaissance; of the two, the ''Birth'' is better known than the ''Primavera''. As depictions of subjects from classical mythology on a very large scale they were virtually unprecedented in Western art since classical antiquity, as was the size and prominence of a nude female figure in the ''Birth''. It used to be thought that they were both commissioned by the same member ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multistable Perception
Multistable perception (or bistable perception) is a perceptual phenomenon in which an observer experiences an unpredictable sequence of spontaneous subjective changes. While usually associated with visual perception (a form of optical illusion), multistable perception can also be experienced with auditory and olfactory percepts. Classification Perceptual multistability can be evoked by visual patterns that are too ambiguous for the human visual system to definitively and uniquely interpret. Familiar examples include the Necker cube, Schroeder staircase, structure from motion, monocular rivalry, and binocular rivalry, but many more visually ambiguous patterns are known. Because most of these images lead to an alternation between two mutually exclusive perceptual states, they are sometimes also referred to as bistable perception. Auditory and olfactory examples can occur when there are conflicting, and so rival, inputs into the two ears or two nostrils. Characterization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Key Light
Key or The Key may refer to: Common meanings * Key (cryptography), a piece of information that controls the operation of a cryptography algorithm * Key (lock), device used to control access to places or facilities restricted by a lock * Key (map), a guide to a map's symbology * Key (music), a group of pitches in a piece * Key, on a typewriter or computer keyboard * Answer key, a list of answers to a test Geography * Cay, also spelled key, a small, low-elevation, sandy island formed on the surface of a coral reef United States * Key, Alabama * Key, Ohio * Key, West Virginia * Keys, Oklahoma * Florida Keys, an archipelago of about 1,700 islands in the southeast United States Elsewhere * Rural Municipality of Keys No. 303, Saskatchewan, Canada * Key, Iran, a village in Isfahan Province, Iran * Key Island, Tasmania, Australia * The Key, New Zealand, a locality in Southland, New Zealand Arts and media Films * ''The Key'' (1934 film), a 1934 film directed by Michael Curtiz * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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