Dinosaurs are a diverse group of animals of the clade Dinosauria. They first appeared during the Triassic period, approximately 230 million years ago, and became the dominant terrestrial vertebrates for 135 million years, from the beginning of the Jurassic (about 200 million years ago) until the end of the Cretaceous (65.5 million years ago), when the Cretaceous–Paleogene extinction event led to the extinction of most dinosaur groups at the close of the Mesozoic era.
The fossil record indicates that birds evolved from the ropod dinosaurs during the Jurassic, and consequently they are considered a type of dinosaur in modern classification systems. Some birds survived the extinction event that occurred 65 million years ago, and continue the dinosaur lineage to the present day.
Dinosaurs are a varied group of animals from taxonomic, morphological and ecological standpoints. Birds, at over 9,000 living species, are the most diverse group of vertebrates besides perciform fish. Using fossil evidence, paleontologists have identified over 500 distinct genera and more than 1,000 different species of non-avian dinosaurs. Dinosaurs are represented on every continent by both extant species and fossil remains. Some are herbivorous, others carnivorous.
Most dinosaurs have been bipedal, though many extinct groups included quadrupedal species, and some were able to shift between these body postures. Many species possess elaborate display structures such as horns or crests, and some prehistoric groups developed skeletal modifications such as bony armorand spines.
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Portraits Made By Making People Stand Near Each Other
A portrait is a painting, photograph, sculpture, or other artistic representation of a person, in which the face and its expression is predominant. The intent is to display the likeness, personality, and even the mood of the person. For this reason, in photography a portrait is generally not a snapshot, but a composed image of a person in a still position.
A portrait often shows a person looking directly at the painter or photographer, in order to most successfully engage the subject with the viewer.
Some of the earliest surviving painted portraits of people who were not kings or emperors, are the funeral portraits that survived in the dry climate of Egypt’s Fayum district. These are almost the only paintings from the classical world that have survived, apart from frescos, though many sculptures survive, and portraits on coins.
The art of the portrait flourished in Ancient Greek and especially Roman sculpture, where sitters demanded individualized and realistic portraits, even unflattering ones. During the 4th century, the portrait began to retreat in favor of an idealized symbol of what that person looked like. (Compare the portraits of Roman Emperors Constantine I and Theodosius I at their entries.)
In the Europe of the Early Middle Ages representations of individuals are mostly generalized. True portraits of the outward appearance of individuals re-emerged in the late Middle Ages, in tomb monuments, donor portraits, miniatures inilluminated manuscripts and then panel paintings.
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The methods used for the printing and binding of books continued fundamentally unchanged from the 15th century into the early years of the 20th century. While there was of course more mechanization, Gutenberg would have had no difficulty in understanding what was going on if he had visited a book printer in 1900.
Gutenberg’s invention was the use of movable metal types, assembled into words, lines, and pages and then printed by letterpress. In letterpress printing ink is spread onto the tops of raised metal type, and is transferred onto a sheet of paper which is pressed against the type. Sheet-fed letterpress printing is still available but tends to be used for collector’s books and is now more of an art form than a commercial technique (see Letterpress).
Modern paper books are printed on papers which are designed specifically for the publication of printed books. Traditionally, book papers are off white or low white papers (easier to read), are opaque to minimise the show through of text from one side of the page to the other and are (usually) made to tighter caliper or thickness specifications, particularly for case bound books. Typically, books papers are light weight papers 60 to 90 g/m² and often specified by their caliper/substance ratios (volume basis). For example, a bulky 80 g/m² paper may have a caliper of 120 micrometres (0.12 mm) which would be Volume 15 (120×10/80) whereas a low bulk 80 g/m² may have a caliper of 88 micrometres, giving a volume 11.
What If Wan Gogh Painted Famous Pop Culture Characters
Vincent Willem van Gogh 30 March 1853 – 29 July 1890) was a Dutch post-Impressionist painter whose work, notable for its rough beauty, emotional honesty, and bold color, had a far-reaching influence on 20th-century art.
After years of painful anxiety and frequent bouts of mental illness, he died at the age of 37 from a gunshot wound, generally accepted to be self-inflicted (although no gun was ever found). His work was then known to only a handful of people and appreciated by fewer still.
Van Gogh began to draw as a child, and he continued to draw throughout the years that led up to his decision to become an artist. He did not begin painting until his late twenties, completing many of his best-known works during the last two years of his life.
In just over a decade, he produced more than 2,100 artworks, consisting of860 oil paintings and more than 1,300 watercolors, drawings, sketches and prints. His work included self portraits, landscapes, still lifes of flowers, portraits and paintings of cypresses, wheat fields and sunflowers.
Van Gogh spent his early adulthood working for a firm of art dealers, traveling between The Hague, London and Paris, after which he taught for a time in England. One of his early aspirations was to become a pastor and from 1879 he worked as a missionary in a mining region in Belgium where he began to sketch people from the local community.
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A film, also called a movie or motion picture, is a series of still or moving images. It is produced by recording photographic images with cameras, or by creating images using animation techniques or visual effects. The process of filmmaking has developed into an art form and industry.
Films are cultural artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them. Film is considered to be an important art form, a source of popular entertainment and a powerful method for educating – or indoctrinating – citizens.
The visual elements of cinema give motion pictures a universal power of communication. Some films have become popular worldwide attractions by using dubbing or subtitles that translate the dialogue into the language of the viewer.
Films are made up of a series of individual images called frames. When these images are shown rapidly in succession, a viewer has the illusion that motion is occurring. The viewer cannot see the flickering between frames due to an effect known as persistence of vision, whereby the eye retains a visual image for a fraction of a second after the source has been removed. Viewers perceive motion due to a psychological effect called beta movement.
The origin of the name “film” comes from the fact that photographic film (also called film stock) has historically been the primary medium for recording and displaying motion pictures. Many other terms exist for an individual motion picture, including picture, picture show, moving picture, photo-play and flick.
Beautiful Portrait Made From Old Socks
A sock is an item of clothing worn on the feet. The foot is among the heaviest producers of sweat in the body, as it is able to produce over 1 US pint (0.47 l) of perspiration per day.
Socks help to absorb this sweat and draw it to areas where air can evaporate the perspiration. In cold environments, socks decrease the risk of frostbite. Its name is derived from the loose-fitting slipper, called a soccus in Latin, worn by Roman comic actors.
Socks have evolved over the centuries from the earliest models which were made from animal skins gathered up and tied around the ankles. In the 8th century BC, the Ancient Greeks wore socks from matted animal hair for warmth. The Romans also wrapped their feet with leather or woven fabrics. By the 5th century AD, socks called “puttees” were worn by holy people in Europe to symbolise purity.
By 1000 AD, socks became a symbol of wealth among the nobility. From the 16th century onwards, an ornamental design on the ankle or side of a sock has been called a clock.
The invention of a knitting machine in 1589 meant that socks could be knitted six times faster than by hand. Nonetheless, knitting machines and hand knitters worked side by side until 1800.
The next revolution in sock production was the introduction of nylon in 1938. Until then socks were commonly made from silk, cotton and wool. Nylon was the start of blending two or more yarns in the production of socks, a process that still continues.
Radiator That Looks Like A Skeleton Of A Raptor
Radiators are heat exchangers used to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in automobiles, buildings, and electronics. The radiator is always a source of heat to its environment, although this may be for either the purpose of heating this environment, or for cooling the fluid or coolant supplied to it, as for engine cooling. Despite the name, radiators generally transfer the bulk of their heat via convection, not by thermal radiation, though the term “convector” is used more narrowly; see radiation and convection, below.
The heating radiator was invented by Franz San Galli, a Polish-born Russian businessman living in St. Petersburg, between 1855 and 1857.
One might expect the term “radiator” to apply to devices that transfer heat primarily by thermal radiation (see: infrared heating), while a device which relied primarily on natural or forced convection would be called a “convector”. In practice, the term “radiator” refers to any of a number of devices in which a liquid circulates through exposed pipes (often with fins or other means of increasing surface area), notwithstanding that such devices tend to transfer heat mainly by convection and might logically be called convectors. The term “convector” refers to a class of devices in which the source of heat is not directly exposed.
Bacon Coffins: Coffins For All Deceased Bacon Lovers
Bacon is a cured meat prepared from a pig. It is first cured using large quantities of salt, either in a brine or in a dry packing; the result is fresh bacon (also known as green bacon). Fresh bacon may then be further dried for weeks or months in cold air, boiled, or smoked. Fresh and dried bacon must be cooked before eating. Boiled bacon is ready to eat, as is some smoked bacon, but may be cooked further before eating.
Bacon is prepared from several different cuts of meat. It is usually made from side and back cuts of pork, except in the United States, where it is almost always prepared from pork belly (typically referred to as “streaky”, “fatty”, or “American style” outside of the US and Canada). The side cut has more meat and less fat than the belly. Bacon may be prepared from either of two distinct back cuts: fatback, which is almost pure fat, and pork loin, which is very lean. Bacon-cured pork loin is known as back bacon.
Bacon may be eaten smoked, boiled, fried, baked, or grilled, or used as a minor ingredient to flavor dishes. Bacon is also used for barding and larding roasts, especially game, e.g. venison, pheasant. The word is derived from the Old High German bacho, meaning “buttock”, “ham” or “side of bacon”, and cognate with the Old French bacon.
Creative Ways To Color You Eggs For Easter
Easter (Old English: Ēostre; Greek: Πάσχα, Paskha; Aramaic: פֶּסחא Pasḥa; from Hebrew: פֶּסַח Pesaḥ) is the central feast in the Christian liturgical year. According to the Canonical gospels, Jesus rose from the dead on the third day after hiscrucifixion. His resurrection is celebrated on Easter Day or Easter Sunday (also Resurrection Day or Resurrection Sunday). The chronology of his death and resurrection is variously interpreted to have occurred between AD 26 and 36.
Easter marks the end of Lent, a forty-day period of fasting, prayer, and penance. The last week of the Lent is called Holy Week, and it contains Good Friday, commemorating the crucifixion and death of Jesus. Easter is followed by a fifty-day period called Eastertide or the Easter Season, ending with Pentecost Sunday.
Easter is a moveable feast, meaning it is not fixed in relation to the civil calendar. The First Council of Nicaea (325) established the date of Easter as the first Sun day after the full moon (the Paschal Full Moon) following the northern hemisphere’s vernal equinox. Ecclesiastically, the equinox is reckoned to be on March 21 (even though the equinox occurs, astronomically speaking, on March 20 in most years), and the “Full Moon” is not necessarily the astronomically correct date. The date of Easter therefore varies between March 22 and April 25. Eastern Christianity bases its calculations on the Julian Calendar whose March 21 corresponds, during the 21st century, to April 3 in the Gregorian Calendar, in which calendar their celebration of Easter therefore varies between April 4 and May 8.
Hairstyle That Will Scare You Every Time You Look At It
A hairstyle, hairdo, or haircut refers to the styling of hair, usually on the human head. The fashioning of hair can be considered an aspect of personal grooming, fashion, and cosmetics, although practical, cultural, and popular considerations also influence some hairstyles.
Throughout history, people have worn their hair in a wide variety of ways, largely determined by the fashions of the culture they live in. Hairstyles are markers and signifiers of social class, age, marital status, racial identification, political beliefs and attitudes about gender.
In many cultures, often for religious reasons, women’s hair is covered while in public, and in some, such as Orthodox Judaism or European Orthodox communities, women’s hair is shaved or cut very short, and covered with wigs. Only since the end of World War I have women begun to wear their hair short and in fairly natural styles.
In ancient civilizations, women’s hair was often elaborately and carefully dressed in special ways. Women coloured their hair, curled it, and pinned it up in a variety of ways. They set their hair in waves and curls using wet clay, which they dried in the sun and then combed out, or else by using a jelly made of quince seeds soaked in water, or curling tongs and curling irons of various kinds.
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