physics

John Collier Frederick Hopkins

John Collier Frederick Hopkins 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 John Collier Frederick Hopkins rather than just read about it. In short: John Collier Frederick Hopkins (12 May 1898 in Stamford Hill, Greater London – 1 October 1981 in Maughold, Isle of Man) was a British mycologist. After serving in the Royal Air Force during World War I, he worked as a plant scientist in Africa for a number of years.

Key takeaways

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

Reference excerpt

John Collier Frederick Hopkins (12 May 1898 in Stamford Hill, Greater London – 1 October 1981 in Maughold, Isle of Man) was a British mycologist. After serving in the Royal Air Force during World War I, he worked as a plant scientist in Africa for a number of years. He became the Chief Botanist of Southern Rhodesia (present day Zimbabwe) and later the Director of the Commonwealth Mycological Institute, London.

Career After having served in World War I and in the Royal Air Force, Hopkins won a Colonial Agricultural Scholarship and spent a year at the Imperial College of Tropical Agriculture in Trinidad. Having worked for two years in Uganda as an agriculture officer, Hopkins was appointed in 1926 as mycologist in Southern Rhodesia, and from 1946 to 1954 as Chief Botanist and Plant Pathologist. He published numerous papers on the diseases afflicting tobacco and other crops. In 1954, he returned to England as Assistant Director of the Commonwealth Mycological Institute, Kew and, two years later, he followed S.P. Wiltshire as Director. In 1963, he returned to Salisbury to attend the 3rd World Tobacco Scientific Congress arranged by the Tobacco Research Board of Rhodesia and Nyasaland. On his retirement in 1964, he moved first to Hastings, and then to the Isle of Man where he assembled a collection of fungi. His Tobacco Diseases with Special Reference to Africa (1956) became the standard text on the subject. Hopkins' expertise was much sought after and in consequence he travelled widely.

Awards and honours In 1962 he was made a Companion of the Order of St Michael and St George.

Personal life Hopkins was the son of William Henry Hopkins and Edith Eliza Hopkins. He married Elizabeth Callister Rothnie (1914-1993) and they had a daughter called Evadne.

Cited as The standard author abbreviation J. C. F. Hopkins is used to indicate this person as the author when citing a botanical name.

Works Hopkins, J. C. F. Tobacco Diseases with Special Reference to Africa (1956) Commonwealth Mycological Institute. Kew, Surrey. 1956.

References

External links Media related to John Collier Frederick Hopkins at Wikimedia Commons

Illustrations

Worked examples

Example 1 — a first encounter with John Collier Frederick Hopkins

Start with the simplest possible case. Write down what John Collier Frederick Hopkins 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 John Collier Frederick Hopkins 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 John Collier Frederick Hopkins 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 John Collier Frederick Hopkins

In research: John Collier Frederick Hopkins 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 John Collier Frederick Hopkins 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: John Collier Frederick Hopkins is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1898 births, 1981 deaths, British mycologists, so understanding it makes those chapters shorter.
In everyday life: Look for John Collier Frederick Hopkins 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 John Collier Frederick Hopkins in 20 minutes

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

Frequently asked questions

What is John Collier Frederick Hopkins in simple terms?

Why does John Collier Frederick Hopkins 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 John Collier Frederick Hopkins?

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 John Collier Frederick Hopkins.