ArticleslgStudy

science

Rayonnant

Rayonnant is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Rayonnant rather than just read about it. In short: Rayonnant was a style of Gothic Architecture which was developed in France in the 13th century. It was the defining style of the High Gothic period, and is often described as the high point of French Gothic architecture.

Rayonnant — main illustration
Rayonnant — illustration

Key takeaways

  • Rayonnant belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Rayonnant to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Rayonnant from memory before moving on to harder problems.

Reference excerpt

Rayonnant was a style of Gothic Architecture which was developed in France in the 13th century. It was the defining style of the High Gothic period, and is often described as the high point of French Gothic architecture. French architects turned their attention from building cathedrals of greater size and height towards bringing greater light into the cathedral interiors and adding more extensive decoration. The architects made the vertical columns and supports thinner, made extensive use of pinnacles and mouldings. They combined the triforium gallery and the clerestory into single space and filled it with stained glass. They made extensive use of mouldings and bar tracery to decorate the exteriors and interiors. Among the most prominent features of the Rayonnant style were the enormous rose windows installed in the transepts and facades, made possible by the use of bar tracery. The design of the windows gave the name Rayonnant ("Radiant") to the style. The style was developed in the major reconstruction of the Abbey of Saint-Denis (1231) The first major church built in the new style was Amiens Cathedral (1220–1271). Later examples include Sainte-Chapelle, the royal chapel of King Louis IX of France (1248); the new north and south transepts of Notre Dame de Paris (1250–1270), and the church of Saint-Urbain de Troyes (1262). Rayonnant cathedrals soon appeared outside of France. One of the first was Cologne Cathedral, begun in 1248. After an interruption from 1528 to 1832, the cathedral was completed in 1880. The style also spread to England with the construction of Westminster Abbey after 1245; it was amalgamated with other elements of English Gothic Architecture to form the Decorated style. After the mid-14th century, Rayonnant was succeeded by the more ornate Flamboyant style.

Periods Rayonnant (French pronunciation: [ʁɛjɔnɑ̃]) style is the third of the four phases of Gothic architecture in France, as defined by French scholars. It succeeded Classic Gothic, the style of Bourges, Chartres and Reims. In the English division of Continental Gothic into three phases (Early, High, Late Gothic), it is the second and larger part of High Gothic. After the mid-14th century, Rayonnant was gradually replaced by the more ornate and highly decorated Flamboyant style.

Name The term "Rayonnant" comes from the radiating spokes of the rose windows of the major cathedrals. The term was first used by 19th-century French art historians (notably Henri Focillon and Ferdinand de Lasteyrie) to classify Gothic styles on the basis of window tracery, though tracery was just one facet of the underlying style, and radiating rose windows can also be seen on earlier cathedrals, like Chartres and Reims.

Rayonnant in France The style originated during the reign of Louis IX of France, or Saint Louis, from 1226 to 1270. During his reign, France was the wealthiest and most powerful nation in Europe. Louis was devoutly religious and was a major patron of the Catholic Church and arts. The University of Paris, or Sorbonne, was founded under his rule, as a school of theology. The major Rayonnant cathedrals had his patronage, and his royal chapel, Sainte-Chapelle, which he built to house his extensive collection of relics of the Saints, is considered one of the major landmarks of Rayonnant Gothic.

Basilica of Saint-Denis rebuilding (1231) The Basilica of Saint-Denis, which had been the most influential initial building of Gothic style, developed problems of stability in the early 13th century. Therefore, the upper parts of the choir as well as the nave and the transepts were rebuilt beginning in 1231, opening up a greater amount of interior space (and altering beyond recognition some of the original Gothic features created by Suger). The walls were rebuilt with much larger windows, which opened up the upper elevation from the main arcades to the apexes of the vaults. The apse, once dark, was filled with light. In this campaign, the first triforia with windows were built. This was the onset of Rayonnant Gothic.

Amiens Cathedral The construction of Amiens Cathedral had begun in 1220 with its western parts, in the more advanced version of Classic Gothic, similar to the eastern parts of Reims Cathedral, at the same time. Its builder, Bishop Evrard de Fouilly, set out to build the largest cathedral in France; one-hundred forty-five meters long, and seventy meters wide, with a surface area of 7700 square meters. The vaults are 42.5 meters high. The nave was completed by 1235. After the necessary enlargement of the area enclosed by the city wall, in 1236, began the construction of transept and choir, which was completed between 1241 and 1269. Here, the innovations were applied, that had been initiated in the relaunch of Saint-Denis abbey church. The western rose window was renewed in the 16th century in Flamboyant style. A close study of the tympanum in 1992 revealed traces of paint, indicating that it was entirely painted in bright colours. The original appearance is simulated today on special occasions with coloured lights.

Notre-Dame de Paris The Cathedral of Notre-Dame de Paris also received a major makeover into the new style. Between 1220 and 1230, flying buttresses were constructed to replace the old wall buttresses, and to support the walls of upper level. Thirty-seven new windows were installed, each one six meters high, each with a double-arched window topped by a rose. (Twenty-five are still in place, twelve in the nave and thirteen in the choir.). The first rose window of Notre-Dame was built on the west facade in the 1220s. In the Middle Ages, the rose was the symbol of the Virgin Mary, to whom the cathedral was dedicated. The west window was smaller, with thick spokes of stone. The larger transept windows were added in about 1250 (north) and 1260 (south), with much more ornate designs and thinner mullions, or ribs, between the glass. The north window was devoted to the events of the Old Testament, and the South to the teachings of Christ and the New Testament.

… excerpt ends here. Continue reading the full article.

Illustrations

Rayonnant illustration
Rayonnant illustration
Rayonnant illustration
Rayonnant illustration
Rayonnant illustration

Worked examples

Example 1 — a first encounter with Rayonnant

Start with the simplest possible case. Write down what Rayonnant claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Rayonnant before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Rayonnant ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Rayonnant

In research
Rayonnant appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Rayonnant in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Rayonnant is common in secondary-school and first-year university syllabi. It links to neighbouring topics Church architecture, Gothic architecture, Gothic architecture in France, so understanding it makes those chapters shorter.
In everyday life
Look for Rayonnant outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Rayonnant in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Rayonnant means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Rayonnant out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rayonnant in simple terms?

Rayonnant was a style of Gothic Architecture which was developed in France in the 13th century. It was the defining style of the High Gothic period, and is often described as the high point of French Gothic architecture.

Why does Rayonnant matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Rayonnant?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Rayonnant.

Tags

  • Church architecture
  • Gothic architecture
  • Gothic architecture in France
  • History of glass
  • Stained glass
  • Windows

Keep exploring