engineering

July Column

July Column is a engineering 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 July Column rather than just read about it. In short: The July Column (French: Colonne de Juillet, [kɔlɔn d(ə) ʒɥijɛ]) is a monumental column in Paris commemorating the Revolution of 1830. It stands in the center of the Place de la Bastille and celebrates the Trois Glorieuses — the 'three glorious' days of 27–29 July 1830 that saw the fall of Charles X, King of France, and the commencement of the July Monarchy of Louis-Philippe, King of the French.

Key takeaways

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

Reference excerpt

The July Column (French: Colonne de Juillet, [kɔlɔn d(ə) ʒɥijɛ]) is a monumental column in Paris commemorating the Revolution of 1830. It stands in the center of the Place de la Bastille and celebrates the Trois Glorieuses — the 'three glorious' days of 27–29 July 1830 that saw the fall of Charles X, King of France, and the commencement of the July Monarchy of Louis-Philippe, King of the French. It was built between 1835 and 1840.

History A first project for one commemorative column, one that would commemorate the Fall of the Bastille, had been envisaged in 1792, and a foundation stone was laid, 14 July 1792; but the project never got further than that. The circular basin in which its socle stands was realised during the Empire as part of the Elephant of the Bastille, a fountain with an elephant in its centre. The elephant was completed to designs by Percier and Fontaine in semi-permanent stucco, but the permanent bronze sculpture was never commissioned due to pinched finances in the latter days of the Empire. Its low base has been retained to support the socle of the column.

The monument, in an elaboration of a Corinthian column, was designed by the architect Jean-Antoine Alavoine, following a commission from Louis-Philippe: the Place de la Bastille was officially selected as the site on 9 March 1831, and the Citizen-King placed a first stone on 28 July 1831, the anniversary of the revolution that brought him to power; a hymn with words by Victor Hugo and music by Ferdinand Hérold was sung at the Panthéon on the occasion. The Colonne de Juillet was constructed by Alavoine's partner in the project, Joseph-Louis Duc. It was inaugurated 28 July 1840. Music composed for the occasion was Hector Berlioz's Grande Symphonie funèbre et triomphale, which was performed in the open air under the direction of Berlioz himself, leading the procession of musicians which ended at the Place de la Bastille. Jean-Pierre Montagny issued commemorative medals on the occasion. In the foundation, a columbarium was arranged to receive the remains of 615 victims of the July Revolution. A further 200 victims of the Revolution of 1848 were later interred in the space; the throne of Louis-Philippe was symbolically burned in the square, in July 1848.

Description

The Colonne de Juillet is composed of twenty-one cast bronze drums, weighing over 74 tonnes (163,000 lb); it is 47 metres (154 ft) high, containing an interior spiral staircase, and rests on a base of white marble ornamented with bronze bas-reliefs, of which the lion by Antoine-Louis Barye is the most noted. The roosters at the corners are also by Barye. The column is engraved in gold with the names of those who died during the July 1830 revolution. Over the Corinthian capital is a gallery 4.9 metres (16 ft) wide, surmounted with a gilded globe, on which stands a colossal gilded figure, Augustin's Génie de la Liberté (the "Spirit of Freedom"). Perched on one foot in the manner of Giambologna's Mercury, the star-crowned nude brandishes the torch of civilisation and the remains of his broken chains. Formerly, the figure also appeared on French ten-franc coins. Gustave Flaubert, in Sentimental Education, compares the statue to a large golden star shining in the east.

Illustrations

July Column: Augustin Dumont's Génie de la Liberté — Augustin Dumont's Génie de la Liberté

Worked examples

Example 1 — a first encounter with July Column

Start with the simplest possible case. Write down what July Column claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 July Column 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 July Column 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 July Column

In research: July Column appears in engineering 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 July Column 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: July Column is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1840 sculptures, 19th-century architecture in France, Bronze sculptures in Paris, so understanding it makes those chapters shorter.
In everyday life: Look for July Column 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 July Column in 20 minutes

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

Frequently asked questions

What is July Column in simple terms?

Why does July Column matter?

Because it connects several engineering 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 July Column?

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 July Column.