science

Silo (series)

Silo (series) 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 Silo (series) rather than just read about it. In short: Silo is a dystopian series of post-apocalyptic science fiction books by American writer Hugh Howey. The series started in 2011 with the short story "Wool", which was later published together with four sequel novellas as a novel with the same name.

Key takeaways

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

Reference excerpt

Silo is a dystopian series of post-apocalyptic science fiction books by American writer Hugh Howey. The series started in 2011 with the short story "Wool", which was later published together with four sequel novellas as a novel with the same name. Along with Wool, the series consists of Shift, Dust, and three short stories. The series has also been adapted as a graphic novel and a television series on Apple TV+.

Background Howey began the series in 2011, initially writing Wool as a short story. He published the work through Amazon's Kindle Direct Publishing system, opting for self-publishing. After the series grew in popularity, he completed additional entries as a series of short stories, later publishing them as a single book Wool. Howey began soliciting international rights in 2012 and has since signed a deal for dramatic rights in Brazil. By March 2013, Howey signed a print-only deal for around US$500,000 (equivalent to $690,000 in 2025) with Simon & Schuster, to distribute print copies of the initial collection, Wool, to book retailers in the US and Canada; he turned down $1,000,000+ offers from publishing houses to retain full rights to continue distributing Wool online, noting that he had already earned more than seven figures from his online publishing royalties.

Works

Novels Originally published as novellas, the series is commonly packaged as three novels. In 2021, Howey tweeted that he had begun a new entry in the series about Silo 40. In a 2025 Reddit AMA, Howey revealed he has planned another trilogy about Silo 40.

1. Wool (2011) Contains the novellas: Holston (short story) Proper Gauge Casting Off The Unraveling The Stranded 2. Shift (2013) Contains the novellas: First Shift — Legacy Second Shift — Order Third Shift — Pact 3. Dust (2013)

Short stories Short stories (published in The Apocalypse Triptych and Howey's anthology Machine Learning)

"In the Air" (2014) "In the Mountains" (2014) "In the Woods" (2015)

Plot

The story of Wool takes place on a post-apocalyptic Earth. Humanity clings to survival in the Silo, a self-sustaining subterranean city with 144 floors. No records of the time before the Silo remain. All residents of the Silo are taught that the outside world is toxic and deadly, and the Silo's cardinal rule is that anyone who expresses a desire to go outside must be sent outside to clean the external sensors of the silo, while facing certain death. The deaths of those sent to clean reaffirm to the Silo residents that the outdoors remain uninhabitable.

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Silo (series)

Start with the simplest possible case. Write down what Silo (series) 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 Silo (series) 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 Silo (series) 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 Silo (series)

In research: Silo (series) 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 Silo (series) 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: Silo (series) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2012 American novels, 2012 English-language novels, 2012 science fiction novels, so understanding it makes those chapters shorter.
In everyday life: Look for Silo (series) 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Silo (series)” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Silo (series) in 20 minutes

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

Frequently asked questions

What is Silo (series) in simple terms?

Why does Silo (series) 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 Silo (series)?

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 Silo (series).