science

Ophiussa

Ophiussa 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 Ophiussa rather than just read about it. In short: Ophiussa, also spelled Ophiusa, is the ancient name given by the ancient Greeks to what is now Portuguese territory near the mouth of the river Tagus. It means Land of Serpents.

Key takeaways

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

Reference excerpt

Ophiussa, also spelled Ophiusa, is the ancient name given by the ancient Greeks to what is now Portuguese territory near the mouth of the river Tagus. It means Land of Serpents.

The expulsion of the Oestrimni The 4th century Roman poet Rufius Festus Avienius, writing on geographical subjects in Ora Maritima ("Seacoasts"), a document inspired by a Greek mariners' Periplus, related that the Oestriminis (Extreme West in Latin) was peopled by the Oestrimni, a people who had been living there for a long time; they had to flee their homeland after an invasion of serpents. These people could be linked to the Saephe (Saefs) or Ophis ("People of the Serpents") and the Dragani ("People of the Dragons"), who came to those lands and built the territorial entity the Greeks termed Ophiussa. The expulsion of the Oestrimni, from Ora Maritima:

The "serpent people" of the semi-mythical Ophiussa in the far west are noted in ancient Greek sources.

Land of the Ophi The Ophi people lived mainly in the inland mountains of Northern Portugal (and Galicia). Others say they lived mainly by the estuaries of the rivers Douro and Tagus. The Ophi worshiped serpents, hence Land of Serpents. There have surfaced a few archeological findings that could be related to this people or culture. Some believe that the dragon sometimes represented as a griffin, from the original Winged Serpent, or Wyvern (the traditional Portuguese Serpe Real), old crest of the crown of the Kings of Portugal and later of the Emperors of Brazil, is linked to local people or to the Celts who had previously invaded the area and could also have been the influence for the Ophi cult.

Ophi legend A legend relates that on the summer solstice a maiden-serpent, a chthonic goddess, reveals hidden treasures to people journeying through forests. This maiden would live in the city of Porto. Festivities related to this goddess occurred during the solstice. During the rest of the year, she would change into a snake living under or among rocks, and shepherds would set aside some milk from their flocks as an offering to her.

See also Avienius Cuco History of Portugal Lusitania Lusitanian mythology Sepharad Timeline of Portuguese history

Notes

External links Ora Maritima (in Latin) at The Latin Library Culto a la serpiente en el mundo Antiguo Archived 2005-11-17 at the Wayback Machine Serpent cult in the Ancient Word (in Spanish) Detailed map of the Pre-Roman Peoples of Iberia (around 200 BC)

Worked examples

Example 1 — a first encounter with Ophiussa

Start with the simplest possible case. Write down what Ophiussa 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 Ophiussa 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 Ophiussa 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 Ophiussa

In research: Ophiussa 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 Ophiussa 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: Ophiussa is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ancient Portugal, Fauna of Portugal, Fauna of Spain, so understanding it makes those chapters shorter.
In everyday life: Look for Ophiussa 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 Ophiussa in 20 minutes

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

Frequently asked questions

What is Ophiussa in simple terms?

Ophiussa, also spelled Ophiusa, is the ancient name given by the ancient Greeks to what is now Portuguese territory near the mouth of the river Tagus. It means Land of Serpents.

Why does Ophiussa 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 Ophiussa?

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 Ophiussa.