astronomy

Jean Jacques Raimond Jr.

Jean Jacques Raimond Jr. is a astronomy 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 Jean Jacques Raimond Jr. rather than just read about it. In short: Jean Jacques Raimond Jr. (13 April 1903, in The Hague – 3 December 1961) was a Dutch astronomer.

Key takeaways

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

Reference excerpt

Jean Jacques Raimond Jr. (13 April 1903, in The Hague – 3 December 1961) was a Dutch astronomer.

Raimond was the son of Jean Jacques Raimond Sr., furniture maker in The Hague, and Tetje van der Werf. He studied astronomy at the universities of Leiden and Groningen. He obtained his PhD at the latter as a student of Jacobus Kapteyn, defending the dissertation The Coefficient of Differential Galactic Absorption. He became the director of the Zeiss Planetarium in The Hague at its opening in 1934. This was the first planetarium installed outside Germany. Here he had a strong influence on the popularization of astronomy. In 1944 he became the president of the 'Nederlandse Vereniging voor Weer- en Sterrenkunde' (NVWS, Netherlands Association for Meteorology and Astronomy) after serving as a board member. From 1938 until his death in 1961, he published annual issues of the popular series 'Sterrengids', an astronomical almanac. The asteroid 1450 Raimonda is named after him, as is the crater Raimond on the Moon. His son Ernst became a radio astronomer. In 1955 a local Dutch astronomy society was named after him. This society still exists albeit under a different name: Triangulum. Recently it celebrated its 50th year of existence.

References

External links Triangulum

Illustrations

Worked examples

Example 1 — a first encounter with Jean Jacques Raimond Jr.

Start with the simplest possible case. Write down what Jean Jacques Raimond Jr. claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Jean Jacques Raimond Jr. 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 Jean Jacques Raimond Jr. 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 Jean Jacques Raimond Jr.

In research: Jean Jacques Raimond Jr. appears in astronomy 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 Jean Jacques Raimond Jr. 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: Jean Jacques Raimond Jr. is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1903 births, 1961 deaths, 20th-century Dutch astronomers, so understanding it makes those chapters shorter.
In everyday life: Look for Jean Jacques Raimond Jr. 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 Jean Jacques Raimond Jr. in 20 minutes

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

Frequently asked questions

What is Jean Jacques Raimond Jr. in simple terms?

Jean Jacques Raimond Jr. (13 April 1903, in The Hague – 3 December 1961) was a Dutch astronomer.

Why does Jean Jacques Raimond Jr. matter?

Because it connects several astronomy 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 Jean Jacques Raimond Jr.?

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 Jean Jacques Raimond Jr..