biology

Hà Đình Đức

Hà Đình Đức is a biology 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 Hà Đình Đức rather than just read about it. In short: Hà Đình Đức (23 March 1940 – 7 August 2026) was a Vietnamese biologist. He was born in the Thọ Xuân District, now in Thanh Hóa Province, Vietnam.

Key takeaways

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

Reference excerpt

Hà Đình Đức (23 March 1940 – 7 August 2026) was a Vietnamese biologist. He was born in the Thọ Xuân District, now in Thanh Hóa Province, Vietnam. He was known for describing the Hoan Kiem turtle, which he classified under name Rafetus leloii. Duc believed it is distinct from the Yangtze giant softshell turtle, which is generally regarded by other biologists as the same species. He had also been at odds with other conservationists and officials who believe the turtle should remain in the Hoan Kiem lake, while he believed it should be removed to avoid competing with other invasive turtle species of the lake. Additionally, Ha believed there is only one Hoan Kiem turtle living in the lake, even though witnesses have reported at least one other turtle in the lake. Ha died on 7 August 2026, at the age of 86.

References

External links Professor Ha Dinh Duc's website Hà Đình Đức at IMDb

Illustrations

Worked examples

Example 1 — a first encounter with Hà Đình Đức

Start with the simplest possible case. Write down what Hà Đình Đức claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Hà Đình Đức 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 Hà Đình Đức 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 Hà Đình Đức

In research: Hà Đình Đức appears in biology 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 Hà Đình Đức 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: Hà Đình Đức is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1940 births, 2026 deaths, 20th-century Vietnamese scientists, so understanding it makes those chapters shorter.
In everyday life: Look for Hà Đình Đức 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 Hà Đình Đức in 20 minutes

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

Frequently asked questions

What is Hà Đình Đức in simple terms?

Hà Đình Đức (23 March 1940 – 7 August 2026) was a Vietnamese biologist. He was born in the Thọ Xuân District, now in Thanh Hóa Province, Vietnam.

Why does Hà Đình Đức matter?

Because it connects several biology 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 Hà Đình Đức?

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 Hà Đình Đức.