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Lacus Perseverantiae

Lacus Perseverantiae 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 Lacus Perseverantiae rather than just read about it. In short: Lacus Perseverantiae (Latin persevērantiae, "Perseverance") is a small lunar mare extending westward from the northwestern exterior of the crater Firmicus, with smaller extensions to the northeast and northwest at the eastern terminus. Its name is Latin for Lake of Perseverance.

Lacus Perseverantiae — main illustration
Lacus Perseverantiae — illustration

Key takeaways

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

Reference excerpt

Lacus Perseverantiae (Latin persevērantiae, "Perseverance") is a small lunar mare extending westward from the northwestern exterior of the crater Firmicus, with smaller extensions to the northeast and northwest at the eastern terminus. Its name is Latin for Lake of Perseverance. The selenographic coordinates are 8.0° N, 62.0° E, and it has a length of 70 km, but a maximum width of less than 15 km. The name of the lacus was adopted by the IAU in 1979.

References

Illustrations

Lacus Perseverantiae illustration
Lacus Perseverantiae: Oblique view of Lacus Perseverantiae, facing south, from Apollo 17
Oblique view of Lacus Perseverantiae, facing south, from Apollo 17

Worked examples

Example 1 — a first encounter with Lacus Perseverantiae

Start with the simplest possible case. Write down what Lacus Perseverantiae 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 Lacus Perseverantiae 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 Lacus Perseverantiae 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 Lacus Perseverantiae

In research
Lacus Perseverantiae 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 Lacus Perseverantiae 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
Lacus Perseverantiae is common in secondary-school and first-year university syllabi. It links to neighbouring topics LQ13 quadrangle, Maria on the Moon, so understanding it makes those chapters shorter.
In everyday life
Look for Lacus Perseverantiae 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 Lacus Perseverantiae in 20 minutes

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

Frequently asked questions

What is Lacus Perseverantiae in simple terms?

Lacus Perseverantiae (Latin persevērantiae, "Perseverance") is a small lunar mare extending westward from the northwestern exterior of the crater Firmicus, with smaller extensions to the northeast and northwest at the eastern terminus. Its name is Latin for Lake of Perseverance.

Why does Lacus Perseverantiae 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 Lacus Perseverantiae?

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 Lacus Perseverantiae.

Tags

  • LQ13 quadrangle
  • Maria on the Moon

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