earth science

John Francis Walker

John Francis Walker is a earth science 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 Francis Walker rather than just read about it. In short: John Francis Walker (25 November 1839 – 23 May 1907) was a natural scientist, teacher, and museum curator. Biography Walker was born in York, where his family had been for generations.

Key takeaways

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

Reference excerpt

John Francis Walker (25 November 1839 – 23 May 1907) was a natural scientist, teacher, and museum curator.

Biography Walker was born in York, where his family had been for generations. His grandfather (Robert T. Horsley) had served as Sheriff of York in 1841. He was educated at St. Peter's School, York, and then at the Royal Agricultural College. Walker was subsequently a student of Sidney Sussex College, Cambridge where he studied the Natural Sciences Tripos. After Cambridge he studied chemistry at the University of Bonn under August Kekulé and was in Germany during the Franco-Prussian War. When he returned to England he studied law and was called to the bar on 6 June 1874 and was a student of the Inner Temple though never practised. Instead, Walker became a lecturer in chemistry at University of Cambridge. He was also elected as a Fellow of Sidney Sussex College. In 1882 Walker married Alice Cracknell and together they moved to 45 Bootham, York. Whilst in York, Walker dedicated much more time to his study of geology and palaeontology. Walker was the honorary curator of geology at the Yorkshire Museum from 1893–1907. He also donated fossil specimens to the museum collection and served as the vice-president of the Yorkshire Philosophical Society (then the museum;s governing body). He was a specialist in Brachiopods. Walker was elected as a Fellow of the Geological Society in 1867, a Fellow of the Linnean Society in 1873. He was also a Fellow of the Chemical Society, and a member of the Geologists' Association.

Select publications Walker, J. F. 1867. "On some new Coprolite Workings in the Fens", Geological Magazine 4, 309-310. Walker, J. F. 1878. "On the Occurrence of Terebratula Morieri in England": Geological Magazine II, 5, 52-556. Walker, J. F. 1892. "The Discovery of Terebratulina substriata, Schlotheim, in Yorkshire", Geological Magazine 9, 364. Walker, J. F. 1903. "On a Fossiliferous Band at the top of the Lower Greensand near Leighton Buzzard, Bedfordshire", Quarterly Journal of the Geological Society 59, 234-265.

References

Illustrations

Worked examples

Example 1 — a first encounter with John Francis Walker

Start with the simplest possible case. Write down what John Francis Walker claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, 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 Francis Walker 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 Francis Walker 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 Francis Walker

In research: John Francis Walker appears in earth science 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 Francis Walker 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 Francis Walker is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1839 births, 1907 deaths, 19th-century British geologists, so understanding it makes those chapters shorter.
In everyday life: Look for John Francis Walker 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 Francis Walker in 20 minutes

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

Frequently asked questions

What is John Francis Walker in simple terms?

John Francis Walker (25 November 1839 – 23 May 1907) was a natural scientist, teacher, and museum curator. Biography Walker was born in York, where his family had been for generations.

Why does John Francis Walker matter?

Because it connects several earth science 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 Francis Walker?

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 Francis Walker.