astronomy

Ouyang Ziyuan

Ouyang Ziyuan 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 Ouyang Ziyuan rather than just read about it. In short: Ouyang Ziyuan (simplified Chinese: 欧阳自远; traditional Chinese: 歐陽自遠; pinyin: Ōuyáng Zìyuǎn, born October 9, 1935) is a Chinese cosmochemist, geochemist and space advocate. He is a research professor at the Institute of Geochemistry of the Chinese Academy of Sciences.

Key takeaways

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

Reference excerpt

Ouyang Ziyuan (simplified Chinese: 欧阳自远; traditional Chinese: 歐陽自遠; pinyin: Ōuyáng Zìyuǎn, born October 9, 1935) is a Chinese cosmochemist, geochemist and space advocate. He is a research professor at the Institute of Geochemistry of the Chinese Academy of Sciences. Asteroid 8919 Ouyangziyuan, discovered in 1996, was named in his honor.

Career Ouyang was born in 1935 in Ji'an, Jiangxi. He obtained a degree in geology at the Beijing College of Geology and a doctorate in mineral deposits and geochemistry at the Beijing Institute of Geology. Thereafter, Ouyang spent many years conducting studies in deep mines. He later studied nuclear physics and worked in a particle accelerator laboratory. He later put forward a hypothesis on the formation of iron meteorites, an evolutionary model of the formation of the meteorites which fell at Jilin in 1976, and a theory of multi-stage cosmic ray radiation history. His works include Celestial Chemistry, and he has published more than 160 scientific treatises. He was elected a Member of the Chinese Academy of Sciences in 1991.

Space advocacy As an expert in geological research on underground nuclear tests and extraterrestrial materials, Ouyang was among the first to advocate not only the exploitation of lunar reserves of metals such as iron, but also the mining of lunar helium-3, an ideal fuel for nuclear fusion power plants. Ouyang is now the chief scientist of the Chinese Lunar Exploration Program (CLEP), also known as the Chang'e program. He is the most prominent supporter of the Chinese crewed lunar exploration program, and also lobbies for the Chinese exploration of Mars. On November 12, 2008, upon China's publication of a comprehensive lunar surface map, Ouyang encouraged all three Asian nations then involved in lunar exploration (China, India and Japan) to increase co-operation in furthering humanity's understanding of the Moon.

Illustrations

Worked examples

Example 1 — a first encounter with Ouyang Ziyuan

Start with the simplest possible case. Write down what Ouyang Ziyuan 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 Ouyang Ziyuan 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 Ouyang Ziyuan 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 Ouyang Ziyuan

In research: Ouyang Ziyuan 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 Ouyang Ziyuan 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: Ouyang Ziyuan is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1935 births, 20th-century Chinese chemists, 21st-century Chinese chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Ouyang Ziyuan 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 Ouyang Ziyuan in 20 minutes

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

Frequently asked questions

What is Ouyang Ziyuan in simple terms?

Why does Ouyang Ziyuan 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 Ouyang Ziyuan?

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 Ouyang Ziyuan.