physics

Guo Kexin

Guo Kexin is a physics 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 Guo Kexin rather than just read about it. In short: Guo Kexin (Chinese: 郭可信; 1923–2006), also known as Ke-Xin Guo or K. H.

Key takeaways

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

Reference excerpt

Guo Kexin (Chinese: 郭可信; 1923–2006), also known as Ke-Xin Guo or K. H. Kuo (Ke-Hsin Kuo), was a Chinese chemical engineer, physicist, metallurgist and crystallographer. He was an academician of the Chinese Academy of Sciences, and is a pioneer of electron microscopy in China.

Life Guo was born on August 23, 1923. In 1941, he graduated from Chongqing Nankai Middle School. He graduated from Zhejiang University in 1946 with a Bachelor of Engineering degree in chemical engineering. In 1947, Guo went to study in Sweden. Guo was the Director and a senior researcher at the Beijing Electron Microscope Open Laboratory (a.k.a. Beijing Laboratory of Electron Microscopy) and the Center for Condensed Matter Physics and the Institute of Physics, Chinese Academy of Sciences. Guo was the main founder of the Chinese Society for Electron Microscopy (a.k.a. Chinese Electron Microscopy Society, CEMS; 中国电子显微镜会), and served as its Director/President from 1982 to 1996.

Recognition In 1980, Guo was elected as a member of the Chinese Academy of Sciences. He was also a foreign member of the Royal Swedish Academy of Engineering Sciences (IVA), and received an Honorary Doctorate from the Royal Institute of Technology (KTH), Sweden. The K. H. Kuo Education Fund is named after him.

References

Archive Electron microscopy of aperiodic materials Invited and contributed papers from a symposium at the ICEM14, Cancun, Mexico, 3 September 1998, in honour of Professor K.H. Kuo - by Lian-Mao Peng and J. L. Aragón

External links Guo Kexin's biography at China Vitae Guo Kexin's short CV at China Vitae "Physicist GUO Kexin, 83, passes away". Chinese Academy of Sciences. Retrieved 2018-03-21. Homepage of the K.H.Kuo Education Fund (in Chinese and English) K. H. Kuo Home Page Archived 2008-10-29 at the Wayback Machine

Worked examples

Example 1 — a first encounter with Guo Kexin

Start with the simplest possible case. Write down what Guo Kexin claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, 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 Guo Kexin 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 Guo Kexin 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 Guo Kexin

In research: Guo Kexin appears in physics 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 Guo Kexin 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: Guo Kexin is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1923 births, 2006 deaths, Chinese chemical engineers, so understanding it makes those chapters shorter.
In everyday life: Look for Guo Kexin 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 Guo Kexin in 20 minutes

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

Frequently asked questions

What is Guo Kexin in simple terms?

Guo Kexin (Chinese: 郭可信; 1923–2006), also known as Ke-Xin Guo or K. H.

Why does Guo Kexin matter?

Because it connects several physics 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 Guo Kexin?

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 Guo Kexin.