science

North Wind's Weir

North Wind's Weir 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 North Wind's Weir rather than just read about it. In short: North Wind's Weir or North Wind's Fish Weir south of Seattle on the Duwamish River in Tukwila, Washington is a site that figures prominently in the oral traditions of the Salish people of the Puget Sound region. The legends describe battles between North Wind and South Wind for control of the region.

Key takeaways

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

Reference excerpt

North Wind's Weir or North Wind's Fish Weir south of Seattle on the Duwamish River in Tukwila, Washington is a site that figures prominently in the oral traditions of the Salish people of the Puget Sound region. The legends describe battles between North Wind and South Wind for control of the region.

Salish tradition According to Salish tradition, North Wind stretched a weir of ice across the Duwamish River at this site; no fish could pass, starving the people up the valley, the people of the Chinook Wind who was married to North Wind's daughter Mountain Beaver Woman. The mother of Mountain Beaver woman survived the starvation, but retreated to the mountain. Mountain Beaver Woman's son, the child Storm Wind, also survived. The people of the North Wind warned Storm Wind to stay away from the mountain, trying to keep from him the knowledge of what had happened to his people, but eventually he defied them and found his grandmother living in misery. He heard her story and helped her out of her misery; she, in return, aided him with a flood that shattered the weir and turned it to stone. Storm Wind and his grandmother defeated North Wind, who only occasionally and briefly torments the area with snow and ice.

Location and environs North Wind's Weir is just east of Cecil Moses Memorial Park, in a zone where fresh and salt waters mix, creating a key transition zone for young Chinook salmon swimming downstream to Puget Sound. A pedestrian and bicycle bridge coming out of the park on the Green River Trail crosses the Duwamish River just south of the weir, allowing a view of the rock formation in the river, except when there is a high tide. The United States Army Corps of Engineers, King County, and construction contractor Doyon Project Services completed a habitat restoration project at the site in December 2009, restoring 2.5 acres (1.0 hectare) of mudflat and vegetated marsh.

Notes

Illustrations

Worked examples

Example 1 — a first encounter with North Wind's Weir

Start with the simplest possible case. Write down what North Wind's Weir 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 North Wind's Weir 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 North Wind's Weir 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 North Wind's Weir

In research: North Wind's Weir 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 North Wind's Weir 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: North Wind's Weir is common in secondary-school and first-year university syllabi. It links to neighbouring topics Coast Salish, Fishing weirs, Landforms of King County, Washington, so understanding it makes those chapters shorter.
In everyday life: Look for North Wind's Weir 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 North Wind's Weir in 20 minutes

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

Frequently asked questions

What is North Wind's Weir in simple terms?

Why does North Wind's Weir 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 North Wind's Weir?

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 North Wind's Weir.