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Lacus Excellentiae

Lacus Excellentiae is a biology 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 Excellentiae rather than just read about it. In short: Lacus Excellentiae (Latin excellentiae, "Lake of Excellence") is a relatively small, irregular lunar mare in the southern latitudes of the Moon, amidst the rugged terrain to the south of the larger Mare Humorum. The most prominent feature within the diameter of this basin is the small crater Clausius.

Lacus Excellentiae — main illustration
Lacus Excellentiae — illustration

Key takeaways

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

Reference excerpt

Lacus Excellentiae (Latin excellentiae, "Lake of Excellence") is a relatively small, irregular lunar mare in the southern latitudes of the Moon, amidst the rugged terrain to the south of the larger Mare Humorum. The most prominent feature within the diameter of this basin is the small crater Clausius. The selenographic coordinates of this feature are 35.4°S 44.0°W / -35.4; -44.0 and it lies within a diameter of 184 km. The name of this lunar lake is a relatively recent addition to lunar nomenclature, being officially approved in 1976 by the IAU General Assembly. The Lacus Excellentiae was the impact site of the SMART-1 lunar orbiter. This probe impacted the lunar surface on September 3, 2006 and was observed by astronomers to determine the properties of the ejected materials.

References

External links "SMART-1 manoeuvres bring Moon impact to nearside". ESA. 2006-07-19. Retrieved 2006-07-25. LAC-110, lunar chart from Gazetteer of Planetary Nomenclature

Illustrations

Lacus Excellentiae illustration
Lacus Excellentiae: Lunar Orbiter 4 image showing approximately the same extent as the Clementine image above.
Lunar Orbiter 4 image showing approximately the same extent as the Clementine image above.

Worked examples

Example 1 — a first encounter with Lacus Excellentiae

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

In research
Lacus Excellentiae appears in biology 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 Excellentiae 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 Excellentiae is common in secondary-school and first-year university syllabi. It links to neighbouring topics LQ26 quadrangle, Maria on the Moon, so understanding it makes those chapters shorter.
In everyday life
Look for Lacus Excellentiae 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 Excellentiae in 20 minutes

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

Frequently asked questions

What is Lacus Excellentiae in simple terms?

Lacus Excellentiae (Latin excellentiae, "Lake of Excellence") is a relatively small, irregular lunar mare in the southern latitudes of the Moon, amidst the rugged terrain to the south of the larger Mare Humorum. The most prominent feature within the diameter of this basin is the small crater Clausi…

Why does Lacus Excellentiae matter?

Because it connects several biology 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 Excellentiae?

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 Excellentiae.

Tags

  • LQ26 quadrangle
  • Maria on the Moon

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