science

Takadai

Takadai 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 Takadai rather than just read about it. In short: A takadai (高台), also called kōdai, is a frame used for making kumihimo, a type of Japanese braid. The braids created on the takadai are flat (3D effects can be achieved) as opposed to the braids created on the marudai which have a round or polygonal section.

Key takeaways

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

Reference excerpt

A takadai (高台), also called kōdai, is a frame used for making kumihimo, a type of Japanese braid. The braids created on the takadai are flat (3D effects can be achieved) as opposed to the braids created on the marudai which have a round or polygonal section. The threads are attached to weighted bobbins called tamas and lay on wood pieces with pegs that are called koma. A wooden sword is used to lightly beat the braid once the braiding has been done. The braiding progresses on a 'V' front, as opposed to weaving on a regular loom that progresses on a straight front. The art that is worked on the takadai is a braid, not a weave. Although many of the patterns used on this braiding stand resemble the up and down motion of a weave, since each thread takes a turn at being both the weft and the warp, it is a braid. On the takadai it is possible to make intricate patterns using a technique called "pick-up braids". The braid has two sides of two contrasting colors and is usually linked on the edges. Then a pattern is formed by interchanging strands from the bottom braid to the upper braid, and by changing the braiding sequence.

Cultural context The takadai is one of several traditional stands used in kumihimo, the Japanese craft of making braided cords. Kumihimo developed in Japan from braiding techniques introduced from continental Asia, and early uses included the decoration of Buddhist objects and scrolls. Over time, kumihimo cords were also used for samurai armour, sword fittings, kimono accessories, and "obijime", the cord used to secure an "obi"

Flat kumihimo cords, known as "hira-uchi himo", are one of the major forms of kumihimo and are used for purposes such as kimono sashes, sword decoration, tea utensils, and accessories.

Related terms Kumihimo 組紐 - "kumi" from the Japanese verb, "kumu," meaning "to braid." "Himo" means "cord" or "string." May be written as くみひも、組紐、組み紐。 Marudai- 丸台 - a wooden braiding stand with a circular top (kagami) which is pierced with a center hole. It is used to make a variety of braids, including round, square, rectangular, flat, triangular, and other polygonal shapes. Obi - 帯 - a sash of varying widths, used to secure a kimono. Obijime - 帯締め - the cord used to secure the obi. Tama - 玉 - weighted wooden bobbins used in all types of kumihimo except Karakumi. The weight provides tension on the threads; this is countered by another weight suspended from the braid underneath the kagami. Koma - movable pegged supports used on a takadai to hold and organize the threads.

References

Books Making Kumihimo, Japanese interlaced braids, by Rodrick Owen Comprehensive Treatrise of Braids V, Taka-dai braids 3, by Makiko Tada

Illustrations

Worked examples

Example 1 — a first encounter with Takadai

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

In research: Takadai 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 Takadai 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: Takadai is common in secondary-school and first-year university syllabi. It links to neighbouring topics Braids, Japanese art stubs, Japanese weaving techniques, so understanding it makes those chapters shorter.
In everyday life: Look for Takadai 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 Takadai in 20 minutes

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

Frequently asked questions

What is Takadai in simple terms?

Why does Takadai 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 Takadai?

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 Takadai.