engineering

Tai-an

Tai-an is a engineering 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 Tai-an rather than just read about it. In short: Tai-an (待庵) is a Momoyama period chashitsu (Japanese tea house) located at Myōki-an temple in Yamazaki, Kyoto. Tai-an was designed by the great tea master Sen no Rikyū in 1582.

Key takeaways

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

Reference excerpt

Tai-an (待庵) is a Momoyama period chashitsu (Japanese tea house) located at Myōki-an temple in Yamazaki, Kyoto. Tai-an was designed by the great tea master Sen no Rikyū in 1582. Sen no Rikyū was named the tea master of Toyotomi Hideyoshi that same year, following Oda Nobunaga's death, and as Hideyoshi was battling around the area at the time, they often held tea ceremonies there. In fact it is often said that it was built for exactly this purpose. An example of the smallest type of chashitsu, its main layout consists of one tatami mat for the host and another one for the guest. On the north side, where the tea house connects with another building, there is a tokonoma. The entrance, on the south side, is said to have been designed larger than usual in order to allow Hideyoshi to enter with his armor on. On the west side there is another one mat area with a shelf for tea utensils, and a tablet with the name of the teahouse hanging near the ceiling. Tai-an is the only teahouse definitely attributed to Sen no Rikyū, and as such it is designated a National Treasure. It can be visited with advanced reservations with an entrance fee.

Illustrations

Worked examples

Example 1 — a first encounter with Tai-an

Start with the simplest possible case. Write down what Tai-an claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Tai-an 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 Tai-an 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 Tai-an

In research: Tai-an appears in engineering 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 Tai-an 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: Tai-an is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1582 in Japan, Buildings and structures completed in 1582, Buildings and structures in Kyoto, so understanding it makes those chapters shorter.
In everyday life: Look for Tai-an 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 Tai-an in 20 minutes

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

Frequently asked questions

What is Tai-an in simple terms?

Tai-an (待庵) is a Momoyama period chashitsu (Japanese tea house) located at Myōki-an temple in Yamazaki, Kyoto. Tai-an was designed by the great tea master Sen no Rikyū in 1582.

Why does Tai-an matter?

Because it connects several engineering 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 Tai-an?

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 Tai-an.