science

Kohinurākau

Kohinurākau 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 Kohinurākau rather than just read about it. In short: Kohinurākau or Kōhinerākau (widely known as Mount Erin) is a 490 m (1,610 ft) mountain in the Kohinurākau Range, 8.5 km (5.3 mi) south-southwest of Havelock North in the Hawke's Bay region of New Zealand. The mountain is the main television and FM radio transmitter site for Napier, Hastings and the wider Hawke's Bay region.

Key takeaways

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

Reference excerpt

Kohinurākau or Kōhinerākau (widely known as Mount Erin) is a 490 m (1,610 ft) mountain in the Kohinurākau Range, 8.5 km (5.3 mi) south-southwest of Havelock North in the Hawke's Bay region of New Zealand. The mountain is the main television and FM radio transmitter site for Napier, Hastings and the wider Hawke's Bay region.

Etymology The names Kohinurākau and Kōhinerākau were officially gazetted in August 2018 as part of the Treaty of Waitangi settlement with Heretaunga Tamatea. The previous name, Mount Erin, is now unofficial but is still used to refer to the transmitter site.

Transmitter The Mount Erin television transmitter was commissioned in 1966, broadcasting Wellington's WNTV1 channel. Television arrived in the Hawke's Bay in 1963 with a private translator atop Kahurānaki, 6 km (3.7 mi) south-southeast of Kohinurākau. The New Zealand Broadcasting Corporation (NZBC) took over a temporary transmitter atop Te Mata Peak in 1965 prior to the commissioning of the Mount Erin transmitter.

Transmission frequencies The following table contains television and radio frequencies currently operating at Mount Erin:

Former analogue television frequencies The following frequencies were used until 30 September 2012, when Mount Erin switched off analogue broadcasts (see Digital changeover dates in New Zealand).

References

Illustrations

Worked examples

Example 1 — a first encounter with Kohinurākau

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

In research: Kohinurākau 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 Kohinurākau 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: Kohinurākau is common in secondary-school and first-year university syllabi. It links to neighbouring topics Hawke's Bay geography stubs, Mountain stubs, Mountains of Hawke's Bay, so understanding it makes those chapters shorter.
In everyday life: Look for Kohinurākau 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 Kohinurākau in 20 minutes

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

Frequently asked questions

What is Kohinurākau in simple terms?

Why does Kohinurākau 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 Kohinurākau?

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 Kohinurākau.