science

Newton's Cannon

Newton's Cannon is a 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 Newton's Cannon rather than just read about it. In short: Newton's Cannon (1998) is a science fantasy novel by American writer Gregory Keyes, the first book in his The Age of Unreason series. The protagonist for the novel is Benjamin Franklin; other key characters to the novel are James Franklin – Ben's brother, John Collins – Ben's friend, as well as Adrienne and King Louis XIV – the Sun King.

Key takeaways

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

Reference excerpt

Newton's Cannon (1998) is a science fantasy novel by American writer Gregory Keyes, the first book in his The Age of Unreason series. The protagonist for the novel is Benjamin Franklin; other key characters to the novel are James Franklin – Ben's brother, John Collins – Ben's friend, as well as Adrienne and King Louis XIV – the Sun King.

The Age of Unreason Series The other three novels of the series are:

A Calculus of Angels Empire of Unreason The Shadow of Gods

Worked examples

Example 1 — a first encounter with Newton's Cannon

Start with the simplest possible case. Write down what Newton's Cannon claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In 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 Newton's Cannon 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 Newton's Cannon 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 Newton's Cannon

In research: Newton's Cannon appears in 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 Newton's Cannon 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: Newton's Cannon is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1990s historical novel stubs, 1990s speculative fiction novel stubs, 1998 American novels, so understanding it makes those chapters shorter.
In everyday life: Look for Newton's Cannon 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 Newton's Cannon in 20 minutes

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

Frequently asked questions

What is Newton's Cannon in simple terms?

Why does Newton's Cannon matter?

Because it connects several 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 Newton's Cannon?

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 Newton's Cannon.