The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being practiced in mainland Greece in the 5th century BC. The first of the great Ionic temples was the Temple of Hera on Samos, built about 570 BC–560 BC by the architect Rhoikos. It stood for only a decade before it was leveled by an earthquake. It was in the great sanctuary of the goddess: it could scarcely have been in a more prominent location for its brief lifetime. A longer-lasting 6th century Ionic temple was the Temple of Artemis at Ephesus, one of the Seven Wonders of the Ancient World.

Greek Ionic Order (Side View)

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being…

The Corinthian order is one of the Classical orders of Greek and Roman architecture, characterized by a slender fluted column and an ornate capital decorated with acanthus leaves and scrolls. Although of Greek origin, the Corinthian order was seldom used in Greek architecture.

Greek Corinthian Order

The Corinthian order is one of the Classical orders of Greek and Roman architecture, characterized by…

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being practiced in mainland Greece in the 5th century BC. The first of the great Ionic temples was the Temple of Hera on Samos, built about 570 BC-560 BC by the architect Rhoikos. It stood for only a decade before it was leveled by an earthquake. It was in the great sanctuary of the goddess: it could scarcely have been in a more prominent location for its brief lifetime. A longer-lasting 6th century Ionic temple was the Temple of Artemis at Ephesus, one of the Seven Wonders of the Ancient World.

Roman Ionic Order

The Ionic order column originated in the mid-6th century BC in Ionia. The Ionic order column was being…

Fort Schlosser was a fortification built in Western New York in the USA around 1760 by British Colonial forces, in order to guard the upper entrance to the portage around Niagara Falls.

Remains at Fort Schlosser

Fort Schlosser was a fortification built in Western New York in the USA around 1760 by British Colonial…

Woodlice are crustaceans with a rigid, segmented, long exoskeleton and fourteen jointed limbs. They form the suborder Oniscidea within the order Isopoda, with over 3,000 known species.

Woodlouse

Woodlice are crustaceans with a rigid, segmented, long exoskeleton and fourteen jointed limbs. They…

The forum was built on the order of Emperor Trajan with the spoils of war from the conquest of Dacia, which ended in 106. The Forum was built from a vast stoa-lined piazza measuring 660 by 390 feet (200 × 120 m) with exedrae on two sides. The Basilica Ulpia was an ancient Roman civic building located in the Forum of Trajan. It was named after Roman emperor Trajan whose full name was Marcus Ulpius Traianus.

Forum and Basilica of Trajan

The forum was built on the order of Emperor Trajan with the spoils of war from the conquest of Dacia,…

The Fatih Mosque (Mosque of Mehmet II, Mosque of Mehmet the Conqueror) was constructed by order of Fatih Sultan Mehmed the Conqueror from 1463-1470, on the site of the former Byzantine Church of the Holy Apostles in Istanbul, whose ruins served as a quarry to supply building materials for the new mosque. The architect was Atik Sinan, about whom little is known.

Fatih Mosque (Plan)

The Fatih Mosque (Mosque of Mehmet II, Mosque of Mehmet the Conqueror) was constructed by order of Fatih…

The Elisabeth Church in Marburg was built by the Order of the Teutonic Knights in honor of Elisabeth of Hungary. Her tomb made the church an important pilgrimage destination in the late Middle Ages. The building is now a Protestant church.

Section of Elisabeth Church, Marburg, Germany

The Elisabeth Church in Marburg was built by the Order of the Teutonic Knights in honor of Elisabeth…

An illustration of various fractional distillation devices. fractional distillation must be used in order to separate the components well by repeated vaporization-condensation cycles within a packed fractionating column. This separation, by successive distillations, is also referred to as rectification.

Fractional Distillation

An illustration of various fractional distillation devices. fractional distillation must be used in…

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle of Fort Sumter during the American Civil War.

Fort Sumter Medal (Front)

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle…

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle of Fort Sumter during the American Civil War.

Fort Sumter Medal (Back)

The Fort Sumter medal executed by order of the New York Chamber of Commerce in recognition of the Battle…

The Alderfly (Sialis infumata) is an insect in the Megaloptera order of alderflies, dobsonflies, and fishflies.

Alderfly

The Alderfly (Sialis infumata) is an insect in the Megaloptera order of alderflies, dobsonflies, and…

A gravity escapement uses a small weight or a weak spring to give an impulse directly to the pendulum. The earliest form consisted of two arms which were pivoted very close to the suspension spring of the pendulum with one arm on each side of the pendulum. Each arm carried a small dead beat pallet with an angled plane leading to it. When the pendulum lifted one arm far enough its pallet would release the escape wheel. Almost immediately another tooth on the escape wheel would start to slide up the angle face on the other arm thereby lifting the arm. It would reach the pallet and stop. The other arm meanwhile was still in contact with pendulum and coming down again to a point lower than it had started from. This lowering of the arm provides the impulse to the pendulum. The design was developed steadily from the middle of the 18th century to the middle of the 19th century. It eventually became the escapement of choice for turret clocks.

Mudge's Gravity Escapement

A gravity escapement uses a small weight or a weak spring to give an impulse directly to the pendulum.…

A gravity escapement uses a small weight or a weak spring to give an impulse directly to the pendulum. The earliest form consisted of two arms which were pivoted very close to the suspension spring of the pendulum with one arm on each side of the pendulum. Each arm carried a small dead beat pallet with an angled plane leading to it. When the pendulum lifted one arm far enough its pallet would release the escape wheel. Almost immediately another tooth on the escape wheel would start to slide up the angle face on the other arm thereby lifting the arm. It would reach the pallet and stop. The other arm meanwhile was still in contact with pendulum and coming down again to a point lower than it had started from. This lowering of the arm provides the impulse to the pendulum. The design was developed steadily from the middle of the 18th century to the middle of the 19th century. It eventually became the escapement of choice for turret clocks.

Bloxam's Gravity Escapement

A gravity escapement uses a small weight or a weak spring to give an impulse directly to the pendulum.…

The cockchafer (colloquially called may bug, billy witch, or spang beetle, particularly in East Anglia) is a European beetle of the genus Melolontha, in the family Scarabaeidae. Once abundant throughout Europe and a major pest in the periodical years of "mass flight", it had been nearly eradicated in the middle of the 20th century through extensive use of pesticides and has even been locally exterminated in many regions. However, since a change in pest control beginning in the 1980s, its numbers have started to grow again.

Cockchafer

The cockchafer (colloquially called may bug, billy witch, or spang beetle, particularly in East Anglia)…

Rusts are fungi in the Uredinales order that are plant parasites and resemble rust."Ravenelia. a, stem of Cassia nictitans with teleutospores on the stem and uredospores on the leaves; b, stem and teleutospores enlarged; c, section showing the teleutospores."

Rust Fungus

Rusts are fungi in the Uredinales order that are plant parasites and resemble rust. "Ravenelia. a, stem…

Kailash Temple, also Kailasanatha Temple or Kylas Temple, is one of the 34 monasteries and temples, extending over more than 2 km, that were dug side by side in the wall of a high basalt cliff in the complex located at Ellora, Maharashtra, India, and represents the epitome of Indian rock-cut architecture. It was carved out of one single rock. The Kailash Temple is notable for its vertical excavation — carvers started at the top of the original rock, and excavated downward, exhuming the temple out of the existing rock. The traditional methods were rigidly followed by the master architect which could not have been achieved by excavating from the front.

Kailash Temple

Kailash Temple, also Kailasanatha Temple or Kylas Temple, is one of the 34 monasteries and temples,…

The "hammerhead", or giant cantilever, crane is a fixed-jib crane consisting of a steel-braced tower on which revolves a large, horizontal, double cantilever; the forward part of this cantilever or jib carries the lifting trolley, the jib is extended backwards in order to form a support for the machinery and counter-balancing weight. In addition to the motions of lifting and revolving, there is provided a so-called "racking" motion, by which the lifting trolley, with the load suspended, can be moved in and out along the jib without altering the level of the load. Such horizontal movement of the load is a marked feature of later crane design. These cranes are generally constructed in large sizes, up to 350 tons.

Hammerhead Crane

The "hammerhead", or giant cantilever, crane is a fixed-jib crane consisting of a steel-braced tower…

The Redlip Blenny (Ophioblennius atlanticus) is one of three species of blennies in the Perciformes order of perch-like fish.

Redlip Blenny

The Redlip Blenny (Ophioblennius atlanticus) is one of three species of blennies in the Perciformes…

Other capitals are more compact, where from the lower part, which is in the shape of a globular vessel, rises a slender cup, supporting a lofty member with double volutes or scrolls on the four sides, which correspond with those of the Grecian Ionic capitals, but which are introduced not horizontally but perpendicularly. The base consists of fillets and a leaf-covered torus resting on a circular path.

Volute of the Persian Column

Other capitals are more compact, where from the lower part, which is in the shape of a globular vessel,…

A cicada is an insect of the order Hemiptera, suborder Auchenorrhyncha, in the superfamily Cicadoidea, with large eyes wide apart on the head and usually transparent, well-veined wings.

Head of Cicada

A cicada is an insect of the order Hemiptera, suborder Auchenorrhyncha, in the superfamily Cicadoidea,…

The Doric columns, which are short, powerful, and closely ranged together, in order to support the weight of the massive entablature, consist of the shaft and the capital, and rest immediately without base on the upper step, which serves as the ground-floor, or stereobate of the temple.

Doric Column from the Temple of Neptune at Paestum

The Doric columns, which are short, powerful, and closely ranged together, in order to support the weight…

The frieze of the Doric order is not taken up with sculpture in uninterrupted succession, but it occurs in groups at regular intervals, separated by features called triglyphs (a). The spaces formed between the triglyphs are called metopes (b).

Doric Order Frieze in the Parthenon at Athens

The frieze of the Doric order is not taken up with sculpture in uninterrupted succession, but it occurs…

The Ionic order was indebted for its earlier development to western Asiatic influence, notably to that of Persepolis; but its maturer beauties are to be attributed to a Doric source. Its main features are the same as in the Doric style; their forms, however, are different. The Ionic order has more mouldings, its forms are richer and more elegant, and, as a style, it is lighter and more graceful than the Doric.

Ionic Pillar in the Erechtheum at Athens

The Ionic order was indebted for its earlier development to western Asiatic influence, notably to that…

The Ionic column has a less diminished shaft and a smaller parabolic curve than the Doric. It is, like the Doric, channeled; the flutings, which are 24 in number, are separated by annulets, and are therefore narrower, but at the same time deeper, than the Doric, and are terminated at the top and bottom by the final curvature.

Fluting Plan of the Ionic and Corinthian Column

The Ionic column has a less diminished shaft and a smaller parabolic curve than the Doric. It is, like…

The so-called Attic base is the form which most frequently occurs; and consists of two tori separated by a cavetto, the whole having a plinth as basis; the upper torus being less high and projecting than the lower.

Attic Base in the Temple of Minerva Polias

The so-called Attic base is the form which most frequently occurs; and consists of two tori separated…

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally, by an ovolo with a pearl-beading beneath. Instead of the Doric abacus there occurs a cushion-like band in its place, whose ends wound in a spiral shape and coiled with elastic force, when viewed either from in front or behind, formed volutes, which on both sides considerably exceed the diameter of the column, and also surpass the architrave in breadth.

Ionic Capital from the Temple of Minerva Polias at Priene

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally,…

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy line over the echinus. The intervals of the spiral coils are slightly hollowed, in order to bring them into more relief, and in this way the so-called channel is formed, which is continued in the horizontal portion which connects the volutes.

Side View of the Ionic Capital from the Temple of Minerva Polias at Priene

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy…

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy line over the echinus. The intervals of the spiral coils are slightly hollowed, in order to bring them into more relief, and in this way the so-called channel is formed, which is continued in the horizontal portion which connects the volutes.

Section of a Volute of an Ionic Capital

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy…

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy line over the echinus. The intervals of the spiral coils are slightly hollowed, in order to bring them into more relief, and in this way the so-called channel is formed, which is continued in the horizontal portion which connects the volutes.

Top View of the Ionic Capital from the Temple of Minerva Polias at Priene

These volutes, or scrolls, when viewed from the side, appear to meet in the middle, and form a wavy…

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally, by an ovolo with a pearl-beading beneath. Instead of the Doric abacus there occurs a cushion-like band in its place, whose ends wound in a spiral shape and coiled with elastic force, when viewed either from in front or behind, formed volutes, which on both sides considerably exceed the diameter of the column, and also surpass the architrave in breadth. This specific one differs from the normal shape.

Ionic Capital from the Temple of Apollo at Basse

In the capital the Doric echinus is replaced either by a cyma ornamented with leaves, or, more generally,…

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated to be introduced between pillars and antæ, and not in a disconnected peristyle with with angle columns. In angle columns, however, the volutes are sometimes constructed in such a way that they meet at both sides diagonally.

Ionic Angle Column from the Temple of Minerva Polias at Athens, Front

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated…

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated to be introduced between pillars and antæ, and not in a disconnected peristyle with with angle columns. In angle columns, however, the volutes are sometimes constructed in such a way that they meet at both sides diagonally.

Ionic Angle Column from the Temple of Minerva Polias at Athens, Side

The good effect of the Ionic capital is really only produced by the front-view. It seems calculated…

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings; the base, on the other hand, is the same as in the columns, and is continued round the walls as a plinth.

Plan of Ionic Antæ Capital from the Temple of Minerva Polias at Athens

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings;…

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings; the base, on the other hand, is the same as in the columns, and is continued round the walls as a plinth.

Ionic Antæ Capital from the Temple of Minerva Polias at Athens

The capital of the antæ and pilasters is without volutes, as is seen here. The shaft has no flutings;…

The entablature resting on the columns has three parts: a plain architrave divided into two, or more generally three, bands, with a frieze resting on it that may be richly sculptural, and a cornice built up with dentils, with a corona and cyma molding to support the projecting roof.

Ionic Cornice from the Temple of Minerva Polias at Priene

The entablature resting on the columns has three parts: a plain architrave divided into two, or more…

The structural tendency which prevails in the capitals of all orders to change from the circular form of the shaft into the square is modified in the Ionic by the voluted nature of the capital, and in the Corinthian by representations of vegetable life.

Corinthian Capital

The structural tendency which prevails in the capitals of all orders to change from the circular form…

The Corinthian cornice is only distinguished from the Ionic by its mutules and modillions, which take the place of the dentels in the latter style. They are fewer in number, but richer and more ornamented, as well as more projecting.

Corinthian Cornice

The Corinthian cornice is only distinguished from the Ionic by its mutules and modillions, which take…

The acanthus is one of the most common ornaments used to depict foliage.

Acanthus Leaf, Front and Side Views

The acanthus is one of the most common ornaments used to depict foliage.

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae. It is supposed to represent the piece of timber through which the wooden pegs were driven in order to hold the rafter in position, and it follows the sloping rake of the roof. In the Roman Doric order the mutule was horizontal, with sometimes a crowning fillet, so that it virtually fulfilled the purpose of the modillion in the Corinthian cornice.

Mutule, Side View

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae.…

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae. It is supposed to represent the piece of timber through which the wooden pegs were driven in order to hold the rafter in position, and it follows the sloping rake of the roof. In the Roman Doric order the mutule was horizontal, with sometimes a crowning fillet, so that it virtually fulfilled the purpose of the modillion in the Corinthian cornice.

Mutule, Front View

Rectangular block under the soffit of the cornice of the Greek Doric temple, which is studded with guttae.…

Simple styles, such as the Doric, which accorded so intimately with the whole disposition of the Grecian temple, and the Ionic, were but rarely used; whilst, on the other hand, the Corinthian order was extremely prevalent, for it corresponded to the desire for splendor and magnificence. This order was employed, not, as among the Greeks, in small dimensions, but on the largest scale.

Corinthian Entablature from the Nerva at Rome

Simple styles, such as the Doric, which accorded so intimately with the whole disposition of the Grecian…

An illustration of a lotus decorated capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Lotus Capital

An illustration of a lotus decorated capital. In several traditions of architecture including Classical…

An illustration of a papyrus decorated capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Papyrus Capital

An illustration of a papyrus decorated capital. In several traditions of architecture including Classical…

An illustration of a lotus decorated capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Lotus Capital

An illustration of a lotus decorated capital. In several traditions of architecture including Classical…

An illustration of a Persian capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Persian Capital

An illustration of a Persian capital. In several traditions of architecture including Classical architecture,…

An illustration of an early Greek capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Early Greek Capital

An illustration of an early Greek capital. In several traditions of architecture including Classical…

An illustration of a Corithian capital from the Tholos of Epidaurus. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Corinthian Capital

An illustration of a Corithian capital from the Tholos of Epidaurus. In several traditions of architecture…

An illustration of a Byzantine capital from the central portal of St. Mark's Venice. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Byzantine Capitals

An illustration of a Byzantine capital from the central portal of St. Mark's Venice. In several traditions…

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Byzantine Capitals

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions…

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Byzantine Capitals

An illustration of a Byzantine capital from the the Church of St. Vitale, Ravenna. In several traditions…

An illustration of a cushion capital. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Cushion Capitals

An illustration of a cushion capital. In several traditions of architecture including Classical architecture,…

An illustration of a Romanesque capitals from the cloister of Monreale near Palermo, Sicily. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Romanesque Capitals

An illustration of a Romanesque capitals from the cloister of Monreale near Palermo, Sicily. In several…

An illustration of a Gothic capitals from Wells Cathedral. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Gothic Capitals

An illustration of a Gothic capitals from Wells Cathedral. In several traditions of architecture including…

An illustration of a Gothic capitals from from Amiens Cathedral. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Gothic Capitals

An illustration of a Gothic capitals from from Amiens Cathedral. In several traditions of architecture…

An illustration of Italian Renaissance capital from St. Maria dei Miracoli, Venice. In several traditions of architecture including Classical architecture, the capital (from the Latin caput, 'head') forms the crowning member of a column or a pilaster. The capital projects on each side as it rises, in order to support the abacus and unite the form of the latter (normally square) with the circular shaft of the column.

Italian Renaissance Capitals

An illustration of Italian Renaissance capital from St. Maria dei Miracoli, Venice. In several traditions…

The Dugong (Dugong dugon) is a large marine mammal in the order Sirenia with the manatee.

Dugong

The Dugong (Dugong dugon) is a large marine mammal in the order Sirenia with the manatee.

An illustration of the floor plan of Angouleme Cathedral. A first cathedral was built on the site a primitive, pre-Christian sanctuary, in the 4th century AD. The edifice was destroyed when the town was taken by Clovis after the Battle of Vouillé (507). Another cathedral was consecrated in 560, but this was also set on fire by the Vikings/Normans some two centuries later. A third cathedral was then constructed under bishop Grimoard, abbot of Saint-Pierre de Brantôme. The new church was consecrated in 1017. However, at the beginning of the 12th century the citizens started to consider it too small for to the wealth of the county. The designer was bishop Gerard II, one of the most important French figures of the time, who was a professor, Papal legate for four popes and also a notable artist. Works began about 1110 and finished in 1128.

Angouleme Cathedral

An illustration of the floor plan of Angouleme Cathedral. A first cathedral was built on the site a…

Principal forms of the hexagonal system: hexagonal pyramid.

Hexagonal Pyramid First Order

Principal forms of the hexagonal system: hexagonal pyramid.

Principal forms of the hexagonal system: hexagonal pyramid.

Hexagonal Pyramid Second Order

Principal forms of the hexagonal system: hexagonal pyramid.