science

Mare Desiderii

Mare Desiderii 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 Mare Desiderii rather than just read about it. In short: Mare Desiderii (Latin dēsīderiī, the "Sea of Desires") was an area of the Moon named after Luna 3 returned the first pictures of the far side in 1959. Early publications of the Luna 3 image referred to the Mare as Mechta, the Russian word for dream.

Key takeaways

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

Reference excerpt

Mare Desiderii (Latin dēsīderiī, the "Sea of Desires") was an area of the Moon named after Luna 3 returned the first pictures of the far side in 1959. Early publications of the Luna 3 image referred to the Mare as Mechta, the Russian word for dream. Mechta was an alternate name for the Luna 1 spacecraft. The feature was also called the Dream Sea or the Sea of Dreams. Other references called it Mare Somnii, Latin for the Sea of Dreams. It was later determined to be an optical illusion in the low quality image. The International Astronomical Union (IAU) removed the name from the list of lunar nomenclature in 1960. Instead this area includes a smaller mare, Mare Ingenii (Sea of Ingenuity or Cleverness), and other dark craters overlapping with the South Pole-Aitken Basin. The naming of this and other features by the Soviet Union was considered controversial at the time. The newly named places on Soviet lunar maps were perceived as an extension of Soviet territory. The IAU was then given the responsibility for naming newly discovered features.

References

Stooke, Philip J. (2007). The International Atlas of Lunar Exploration. Cambridge University Press. p. 17. ISBN 978-0-521-81930-5.

Illustrations

Worked examples

Example 1 — a first encounter with Mare Desiderii

Start with the simplest possible case. Write down what Mare Desiderii 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 Mare Desiderii 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 Mare Desiderii 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 Mare Desiderii

In research: Mare Desiderii 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 Mare Desiderii 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: Mare Desiderii is common in secondary-school and first-year university syllabi. It links to neighbouring topics LQ29 quadrangle, Maria on the Moon, so understanding it makes those chapters shorter.
In everyday life: Look for Mare Desiderii 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 Mare Desiderii in 20 minutes

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

Frequently asked questions

What is Mare Desiderii in simple terms?

Why does Mare Desiderii 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 Mare Desiderii?

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 Mare Desiderii.