science

Picard (crater)

Picard (crater) 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 Picard (crater) rather than just read about it. In short: Picard is a lunar impact crater that lies in Mare Crisium. The crater is named for 17th century French astronomer and geodesist Jean Picard.

Key takeaways

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

Reference excerpt

Picard is a lunar impact crater that lies in Mare Crisium. The crater is named for 17th century French astronomer and geodesist Jean Picard. It is the biggest non-flooded crater of this mare, being slightly larger than Peirce to the north-northwest. To the west is the almost completely flooded crater Yerkes. To east of Picard is the tiny Curtis. Picard is a crater from the Eratosthenian period, which lasted from 3.2 to 1.1 billion years ago. The roughly circular rim of Picard is well-defined and shows little sign of wear, having a sharp-edged appearance. On the inner wall are a series of layered terraces that seismologists have attributed to a collapse of the crater floor. It has a cluster of low hills at the bottom.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Picard.

The following craters have been renamed by the IAU.

Picard G — see Tebbutt. Picard H — see Shapley. Picard X — see Fahrenheit. Picard Z — see Curtis.

Gallery

References

External links Map of the region Part of Picard crater: photo by Lunar Reconnaissance Orbiter with resolution 1,3 meters/pixel Archived 2014-12-13 at the Wayback Machine "Picard Crater Impact Melt". lroc.sese.asu.edu. 2012-12-11. Archived from the original on 2014-12-12. Retrieved 2014-12-12. "The Crater Picard: Strange Convergences". vgl.org. 1996-04-04. Archived from the original on 2007-10-25. Retrieved 2014-12-12. Picard in The-Moon Wiki

Illustrations

Worked examples

Example 1 — a first encounter with Picard (crater)

Start with the simplest possible case. Write down what Picard (crater) 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 Picard (crater) 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 Picard (crater) 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 Picard (crater)

In research: Picard (crater) 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 Picard (crater) 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: Picard (crater) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Eratosthenian, Impact craters on the Moon, LQ13 quadrangle, so understanding it makes those chapters shorter.
In everyday life: Look for Picard (crater) 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 Picard (crater) in 20 minutes

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

Frequently asked questions

What is Picard (crater) in simple terms?

Picard is a lunar impact crater that lies in Mare Crisium. The crater is named for 17th century French astronomer and geodesist Jean Picard.

Why does Picard (crater) 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 Picard (crater)?

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 Picard (crater).