science

Jinbei

Jinbei 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 Jinbei rather than just read about it. In short: A jinbei (甚平) (alternately jinbē (甚兵衛) or hippari (ひっぱり)) is a traditional set of Japanese clothing worn by men, women and children during summer as loungewear. Consisting of a side-tying, tube-sleeved kimono-style top and a pair of trousers, jinbei were originally menswear only, although in recent years women's jinbei have become popular.

Key takeaways

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

Reference excerpt

A jinbei (甚平) (alternately jinbē (甚兵衛) or hippari (ひっぱり)) is a traditional set of Japanese clothing worn by men, women and children during summer as loungewear. Consisting of a side-tying, tube-sleeved kimono-style top and a pair of trousers, jinbei were originally menswear only, although in recent years women's jinbei have become popular.

Description Jinbei typically come in a matching set of a top and trousers that are either short or long. Although the trousers resemble Western trousers, the top resembles a kimono, with a wrapped front and a long collar set on a diagonal angle. However, unlike kimono, jinbei typically do not have an overlapping front panel (known as the okumi), and feature two sets of ties – one inside and the other outside – to fasten the top shut. The top is roughly hip-length, and is wrapped left over right, with the internal ties fastened before the external ones. Traditional jinbei are made from hemp or cotton, and are typically dyed a solid colour – such as indigo, blue or green – with either a muted or nonexistent pattern. Modern jinbei frequently feature prints ranging from simple textures to complicated and colourful floral patterns. Ladies' jinbei tend to be more brightly coloured, and often feature prints of popular culture characters and motifs. Jinbei seams are very loosely sewn to allow for ventilation during hot weather and, from a distance, appear to form a short gap between different fabric pieces.

Use

Jinbei are usually worn as a form of nightwear or house clothes, and are considered very informal clothing. Normally, jinbei are typically only worn outside the house when travelling short distances, such as to go on a local errand, collecting the mail or while shopping. The formal use of jinbei, or wearing it outside the house for a long period, is frowned upon. Jinbei can also be used as a substitute for yukata during the summer months, particularly at summer festivals. The whale shark is also known as the jinbei-zame (ジンベイザメ（甚平鮫), "jinbei shark") or jinbē-zame (ジンベエザメ《甚兵衛鮫》, "jinbee shark") in Japanese, due to its skin patterns resembling those seen on jinbei.

Illustrations

Worked examples

Example 1 — a first encounter with Jinbei

Start with the simplest possible case. Write down what Jinbei 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 Jinbei 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 Jinbei 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 Jinbei

In research: Jinbei 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 Jinbei 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: Jinbei is common in secondary-school and first-year university syllabi. It links to neighbouring topics Jackets, Japanese full-body garments, Nightwear, so understanding it makes those chapters shorter.
In everyday life: Look for Jinbei 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 Jinbei in 20 minutes

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

Frequently asked questions

What is Jinbei in simple terms?

Why does Jinbei 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 Jinbei?

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 Jinbei.