science

North Holland Blue

North Holland Blue 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 Holland Blue rather than just read about it. In short: The North Holland Blue, Dutch: Noord-Hollandse Blauwe or Noord-Hollandse Hoen, is a Dutch breed of domestic chicken originating in the province of North Holland. It is a heavy meat breed, and was created to supply the high demand for white chicken meat from the city of Amsterdam, particularly from the Jewish community in that city.

Key takeaways

North Holland Blue 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 Holland Blue to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of North Holland Blue from memory before moving on to harder problems.

Reference excerpt

The North Holland Blue, Dutch: Noord-Hollandse Blauwe or Noord-Hollandse Hoen, is a Dutch breed of domestic chicken originating in the province of North Holland. It is a heavy meat breed, and was created to supply the high demand for white chicken meat from the city of Amsterdam, particularly from the Jewish community in that city.

History The North Holland Blue was created in the area around Purmerend in about 1900 to supply the city of Amsterdam with white chicken-meat. It derives from the Belgian Malines. Malines birds had been imported for the purpose but did not do well in the poor conditions of North Holland. They were therefore crossed with local chickens. A breed standard was agreed in 1934 by the Noord-Hollandse Blauwenclub van Nederland, a breeders' association, and in 1950 was adopted with minor changes by the Nederlandse Hoender en Dwerghoender Bond, the national association of poultry breeders. In the years after the Second World War the North Holland Blue was supplanted as a commercial meat breed by faster-growing imported American breeds. The last large North Holland Blue farm closed in 1977. A bantam version was also created in the Netherlands, but was first shown in Germany. The North Holland Blue is recognised in eight European countries.

Characteristics The North Holland Blue has only one colour, Cuckoo. It has a quiet, docile temperament, and lays 180–240 eggs per year. In the Netherlands and New Zealand it is clean-legged; British breed standards call for lightly feathered legs.

References

Illustrations

Worked examples

Example 1 — a first encounter with North Holland Blue

Start with the simplest possible case. Write down what North Holland Blue 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 Holland Blue 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 Holland Blue 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 Holland Blue

In research: North Holland Blue 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 Holland Blue 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 Holland Blue is common in secondary-school and first-year university syllabi. It links to neighbouring topics Animal breeds on the RBST Watchlist, Chicken breeds, Chicken breeds originating in the Netherlands, so understanding it makes those chapters shorter.
In everyday life: Look for North Holland Blue 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 Holland Blue in 20 minutes

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

Frequently asked questions

What is North Holland Blue in simple terms?

Why does North Holland Blue 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 Holland Blue?

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 Holland Blue.