astronomy

Lou Zhicen

Lou Zhicen 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 Lou Zhicen rather than just read about it. In short: Lou Zhicen (simplified Chinese: 楼之岑; traditional Chinese: 樓之岑; pinyin: Lóu Zhīcén; 28 January 1920 – 23 March 1995) was a Chinese pharmacognosist and educator. Lou comes from a long line doctors and graduated from the University of London.

Key takeaways

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

Reference excerpt

Lou Zhicen (simplified Chinese: 楼之岑; traditional Chinese: 樓之岑; pinyin: Lóu Zhīcén; 28 January 1920 – 23 March 1995) was a Chinese pharmacognosist and educator. Lou comes from a long line doctors and graduated from the University of London. Lou was a member of the Chinese Academy of Engineering. He was vice-president of the Chinese Pharmaceutical Association (CPA) and a member of the Chinese Pharmacopoeia Commission. He was chief editor of Chinese Pharmaceutical Journal and Bulletin of Chinese Materia Medica, and associate chief editor of Acta Pharmaceutica Sinica. Lou was the graduate tutor of Tu Youyou, who is a renowned pharmaceutical chemist, educator and Nobel laureate.

Biography Lou was born in Xiaofeng County (now Anji County), Zhejiang, Republic of China on January 28, 1920, to a family of physicians. He attended Xiaofeng County Sun Yat-sen Primary School and Zhejiang Provincial Huzhou Junior High School. In 1936 he was accepted to Zhejiang Provincial Xianghu Village Normal School and he entered Zhejiang Provincial Joint Normal School in February 1939. In the summer of 1939 he was accepted to National Military Medical Academy, after graduation, he taught there. In 1943 he became a member of the Chinese Chemical Society (CCS) and he was an editor of Quarterly Journal of Pharmacy. In September 1945 he entered the University of London, where he majored in pharmacognosy. He took up a post as research assistant in the Department of Pharmacology in 1948. He returned to China (the newly established People's Republic) in January 1951 and in that year became an associate professor of the Department of Pharmacy at Zhejiang University. Seven months later, he taught at Peking University Medical School (later Beijing Medical College, now Peking University Health Science Center). He was elected a member of the Chinese Academy of Engineering in June 1994. He died on March 23, 1995, in Beijing.

References

Worked examples

Example 1 — a first encounter with Lou Zhicen

Start with the simplest possible case. Write down what Lou Zhicen 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 Lou Zhicen 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 Lou Zhicen 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 Lou Zhicen

In research: Lou Zhicen 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 Lou Zhicen 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: Lou Zhicen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1920 births, 1995 deaths, Alumni of the University of London, so understanding it makes those chapters shorter.
In everyday life: Look for Lou Zhicen 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 Lou Zhicen in 20 minutes

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

Frequently asked questions

What is Lou Zhicen in simple terms?

Why does Lou Zhicen 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 Lou Zhicen?

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 Lou Zhicen.