engineering

Sakuramachi Jin'ya

Sakuramachi Jin'ya 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 Sakuramachi Jin'ya rather than just read about it. In short: The Sakuramachi jin'ya (桜町陣屋) was a jin'ya built in the Edo period located in the city of Mooka, Tochigi Prefecture in the northern Kantō region of Japan. It was designated a National Historic Site of Japan in 1932.

Key takeaways

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

Reference excerpt

The Sakuramachi jin'ya (桜町陣屋) was a jin'ya built in the Edo period located in the city of Mooka, Tochigi Prefecture in the northern Kantō region of Japan. It was designated a National Historic Site of Japan in 1932.

Overview Under the Edo period Tokugawa shogunate, Odawara Domain in Sagami Province was controlled by the Ōkubo clan. As with most domains in the han system, Odawara Domain consisted of several discontinuous territories calculated to provide its assigned kokudaka, and one of these holdings was a 4000 koku fief in Shimotsuke Province. The daimyō of Odawara, Ōkubo Tadatomo and constructed a fortified residence the following year for his third son to administer this exclave. Originally, the jin'ya was a complex of 12-13 buildings with a large office, warehouses and stables, all surrounded by an earthen rampart. Over time, due to poor farming practices and neglect, the lands of the Ōkubo holding became exhausted, with its yield dropping to less than 1000 koku. In 1823, Ōkubo Tadazane dispatched the noted scholar and agrarian reformer Ninomiya Sontoku to the territory in an attempt to restore it to productivity. Ninomiya spent 26 years at this location, implementing his theories of agrarian management, and was able to restore the territory to its former prosperity. After the Meiji restoration, the jin'ja was abolished, and its surviving structures were destroyed, with the exception of the current single thatch-roof building and a fragment of the earthenworks on its south side. The National Historic site designation encompasses an area measuring 100 meters by 110 meters and includes a Shinto shrine dedicated by Ninomiya Sontoku and a local history museum, the Ninomiya Sontoku Shiryōkan (二宮尊徳資料館). The jin'ya is located about 10 minutes on foot from Kugeta Station on the Mooka Railway.

See also List of Historic Sites of Japan (Tochigi)

References

External links

Ninomiya Sontoku Museum (in Japanese) Tochigi Prefecture tourism home page (in Japanese) Mooka city home page (in Japanese)

Illustrations

Worked examples

Example 1 — a first encounter with Sakuramachi Jin'ya

Start with the simplest possible case. Write down what Sakuramachi Jin'ya 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 Sakuramachi Jin'ya 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 Sakuramachi Jin'ya 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 Sakuramachi Jin'ya

In research: Sakuramachi Jin'ya 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 Sakuramachi Jin'ya 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: Sakuramachi Jin'ya is common in secondary-school and first-year university syllabi. It links to neighbouring topics 17th-century establishments in Japan, Buildings and structures completed in 1699, Edo-period buildings and structures, so understanding it makes those chapters shorter.
In everyday life: Look for Sakuramachi Jin'ya 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 Sakuramachi Jin'ya in 20 minutes

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

Frequently asked questions

What is Sakuramachi Jin'ya in simple terms?

Why does Sakuramachi Jin'ya 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 Sakuramachi Jin'ya?

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 Sakuramachi Jin'ya.