science

Knee (geography)

Knee (geography) 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 Knee (geography) rather than just read about it. In short: A knee, or river knee, is a bend in a river changing its course greatly, suddenly to a different general direction (in an angle of around 90 degrees). It is different from most (one-off) riverbends, and from a (particular) meander which connotes one of several bends in a sinuous course, without changing the general direction.

Key takeaways

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

Reference excerpt

A knee, or river knee, is a bend in a river changing its course greatly, suddenly to a different general direction (in an angle of around 90 degrees). It is different from most (one-off) riverbends, and from a (particular) meander which connotes one of several bends in a sinuous course, without changing the general direction. Knees navigable by large vessels or set in upland areas or arid drainage basins were similar to major confluences in that they were particularly suitable for trade and defense, and therefore gave rise to forts, governing army camps or cities. Many major world rivers have such a notable knee close to major settled places:

the Rhine knee in Basel, Switzerland is the river's greatest knee – others are in German cities Wiesbaden and Bingen the Danube knee in Vác, Hungary (35 km north of Budapest) the Volga knee at Volgograd, Russia the upper Rhône knee at Martigny, Switzerland the Petitcodiac knee at Moncton, New Brunswick, Canada, locally known as Le Coude The Irawaddy knee at Mandalay Some riverbends are in some places referred to "knees" but are bends largely unaffecting the course or a small sharp meander:

the "Vltava knee" in Prague, Czech Republic the "Elbe knee" at Königstein Fortress, Germany the "Rhine knee" at Düsseldorf, Germany (see also de:Rheinkniebrücke)

References

Worked examples

Example 1 — a first encounter with Knee (geography)

Start with the simplest possible case. Write down what Knee (geography) 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 Knee (geography) 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 Knee (geography) 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 Knee (geography)

In research: Knee (geography) 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 Knee (geography) 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: Knee (geography) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fluvial landforms, Limnology, Rivers, so understanding it makes those chapters shorter.
In everyday life: Look for Knee (geography) 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 Knee (geography) in 20 minutes

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

Frequently asked questions

What is Knee (geography) in simple terms?

Why does Knee (geography) 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 Knee (geography)?

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 Knee (geography).