mathematics

John William Norie

John William Norie is a mathematics 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 William Norie rather than just read about it. In short: John William Norie (3 July 1772 in London – 24 December 1843), was a mathematician, hydrographer, chart maker and publisher of nautical books most famous for his Epitome of Practical Navigation (1805) which became a standard work on navigation and went through many editions as did many of Norie's works. Norie began his career working with William Heather, who had in 1765 taken over chart publishers Mount and Page an…

Key takeaways

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

Reference excerpt

John William Norie (3 July 1772 in London – 24 December 1843), was a mathematician, hydrographer, chart maker and publisher of nautical books most famous for his Epitome of Practical Navigation (1805) which became a standard work on navigation and went through many editions as did many of Norie's works. Norie began his career working with William Heather, who had in 1765 taken over chart publishers Mount and Page and who ran the Naval Academy and Naval Warehouse in Leadenhall Street from 1795; the Naval Warehouse provided navigational instruments, charts, and books on navigation. Norie took over the Naval Warehouse after Heather's retirement and founded the company J.W. Norie and Company in 1813. After Norie's death the company became Norie and Wilson, then in 1903 Imray, Laurie, Norie & Wilson. Charles Dickens later used the Naval Warehouse in Dombey and Son. Jack London mentions Norie's Epitome in Chapter 5 of his novel Martin Eden, and C. S. Forester refers to it in chapters 1 and 8 of Mr. Midshipman Hornblower and in Chapter 17 of The Commodore, both of the Horatio Hornblower series of novels. He died at 3 Coates Crescent in Edinburgh's fashionable West End, Leaving his house to William H. Norie FRSE a barrister-at-law.

Bibliography A New and Complete Epitome of Practical Navigation (1805) Complete East India Pilot (1816) The shipwright's vade-mecum (1822) Complete North Sea and Baltic Pilot (1824) – reissued 1848 Complete North America and United States Pilot (1825) Piloting Directions for the River and Gulf of St. Lawrence (1826) West India directory, containing instructions for navigating the Caribbee (1827) New Piloting Directions for the Mediterranean Sea, the Adriatic, or Gulf of Venice, the Black Sea, Grecian Archipelago, and the Seas of Marmara and Azov (1831) Complete British and Irish Coasting Pilot (1835) – reissued 1845 Plates Descriptive of the Maritime Flags of All Nations (1838) The naval gazetteer, biographer, and chronologist; new and improved (1842) Complete Mediterranean Pilot (1845) Norie, John William; Hobbs, J. S. (1847) [First published 1840]. Sailing directions for the Bay of Biscay, including the coasts of France and Spain, from Ushant to Cape Finisterre (A new ed., rev. and considerably improved ed.). C. Wilson. OCLC 41208722. Brazil and South American Pilot (c. 1850) Sailing directions for the navigation of the North Sea (1852)

Illustrations

Worked examples

Example 1 — a first encounter with John William Norie

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

In research: John William Norie appears in mathematics 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 William Norie 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 William Norie is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1772 births, 1843 deaths, 19th-century English mathematicians, so understanding it makes those chapters shorter.
In everyday life: Look for John William Norie 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 William Norie in 20 minutes

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

Frequently asked questions

What is John William Norie in simple terms?

Why does John William Norie matter?

Because it connects several mathematics 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 William Norie?

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 William Norie.