engineering

Puerta del Reloj

Puerta del Reloj 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 Puerta del Reloj rather than just read about it. In short: The Puerta del Reloj (pronounced [ˈpweɾta ðel reˈlox]), Torre del Reloj (pronounced [ˈtore ðel reˈlox]) or Boca del Puente (pronounced [ˈboka ðel ˈpwente]) is the main city gate of the historic center of Cartagena de Indias, in Colombia and the original entrance of the fortified city. It is located between the squares Plaza de Independencia and Plaza de los Coches.

Key takeaways

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

Reference excerpt

The Puerta del Reloj (pronounced [ˈpweɾta ðel reˈlox]), Torre del Reloj (pronounced [ˈtore ðel reˈlox]) or Boca del Puente (pronounced [ˈboka ðel ˈpwente]) is the main city gate of the historic center of Cartagena de Indias, in Colombia and the original entrance of the fortified city. It is located between the squares Plaza de Independencia and Plaza de los Coches. The name "Puerta del Reloj" responds to the clock with which it was crowned at the beginning of the 18th century. While the name of Boca del Puente is due to the fact that during the colonial period, a drawbridge was raised at the foot of the channel of San Anastasio, which linked the walled city to the legendary Getsemaní neighborhood. In addition the bridge served like defense of the city, since in case of enemy attack, this one was raised to prevent the access of buccaneers and pirates. Also the gate was protected by the bastions of San Pedro Apóstol (now disappeared) and the one of San Juan Bautista. It has a Postclassic style in its facade, precursory of those that advocated the treaties on fortification of second half of 18th century. The Puerta del Reloj is the work of the Spanish military engineer Juan de Herrera y Sotomayor, founder of the Cartagena Academy, and its style recalls the facade of the main church of the Monasterio de San Francisco in the Colonial City of Santo Domingo. In fact both gates present a half-point Roman arch, flanked by two pairs of Tuscan columns, and the same entablature with a frieze decorated with triglyphs. For the connoisseurs, this gate is one of the most successful works of the Spanish-American Fortification School and possibly one of the best preserved in the New World, as it strictly complies with the opinions of the Vauban school. Among the locals this gate is known as Boca del Puente, but for non-natives of Cartagena it is simply the Puerta del Reloj.

History Built between 1704 and 1738, Herrera undertook the repair of the 1631 "Puerta del Puente" or Gate of the Bridge, which overlooked a wooden bridge dating from 1540. This was a wooden viaduct that passed over the Caño de San Anastasio, a seawater rivulet separating the island of Getsemaní from the island of Calamarí.

Gallery

See also List of colonial buildings in Cartagena, Colombia

References

Illustrations

Worked examples

Example 1 — a first encounter with Puerta del Reloj

Start with the simplest possible case. Write down what Puerta del Reloj 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 Puerta del Reloj 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 Puerta del Reloj 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 Puerta del Reloj

In research: Puerta del Reloj 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 Puerta del Reloj 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: Puerta del Reloj is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1601 establishments in the Spanish Empire, 17th-century fortifications, Baroque architecture in Colombia, so understanding it makes those chapters shorter.
In everyday life: Look for Puerta del Reloj 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.

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How to study Puerta del Reloj in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Puerta del Reloj 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 Puerta del Reloj out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Puerta del Reloj in simple terms?

Why does Puerta del Reloj 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 Puerta del Reloj?

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 Puerta del Reloj.