astronomy

Ruurd Dirk Hoogland

Ruurd Dirk Hoogland is a astronomy 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 Ruurd Dirk Hoogland rather than just read about it. In short: Ruurd Dirk Hoogland (1922 Leeuwarden - 18 November 1994 Paris) was a Dutch-born explorer and naturalist, who migrated to Australia and made numerous botanical expeditions to New Guinea, Oceania and Europe. He was an expert on the family Cunoniaceae.

Key takeaways

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

Reference excerpt

Ruurd Dirk Hoogland (1922 Leeuwarden - 18 November 1994 Paris) was a Dutch-born explorer and naturalist, who migrated to Australia and made numerous botanical expeditions to New Guinea, Oceania and Europe. He was an expert on the family Cunoniaceae. The standard author abbreviation Hoogland is used to indicate this person as the author when citing a botanical name. He received his university education in Groningen and Leiden. He earned his doctorate in 1952 with a review of the genus Dillenia under Professor van Steenis and in that year he joined the Australian CSIRO in the Division of Land Research in Canberra as a botanist initially focusing on the then Australian dependency of Papua New Guinea. Subsequently, his field work included expeditions to remote Australian territories such as Lord Howe and Norfolk Islands, and to other Commonwealth countries including Sri Lanka and Malaysia. He transferred from CSIRO to the Research School of Biological Sciences at the Australian National University, but was forced to retire after contracting Myasthenia gravis. Despite this, he continued to work wherever he could find appropriate facilities, and was fortunate to obtain a visiting fellowship at the Laboratoire de Phanérogamie within the Muséum Nationale d'Histoire Naturelle in Paris before he turned 65, where he continued to work until shortly before his death. His last field trip was to New Caledonia about 6 months before his death. Throughout his career, he made regular visits and contributed specimens to collaborating herbaria or botanic gardens around the world including Sydney (over 740 specimens), Leiden and Kew Gardens, amongst many others.

Plants named after author Genera

(Cunoniaceae) Hooglandia McPherson & Lowry Species

(Araceae) Homalomena hooglandii A.Hay (Asteraceae) Olearia hooglandii J.Kost. (Asteraceae) Senecio hooglandii Belcher (Cunoniaceae) Weinmannia hooglandii H.C.Hopkins & J.C.Bradford (Cyatheaceae) Alsophila hooglandii (Holttum) R.M.Tryon (Dilleniaceae) Hibbertia hooglandii J.R.Wheeler (Ericaceae) Vaccinium hooglandii Sleumer (Gleicheniaceae) Gleichenia hooglandii Holttum (Leguminosae) Archidendron hooglandii Verdc. (Leguminosae) Serianthes hooglandii (Fosb.) A.Kanis (Melastomataceae) Poikilogyne hooglandii Nayar (Monimiaceae) Palmeria hooglandii Philipson (Myristicaceae) Myristica hooglandii J.Sinclair (Onagraceae) Epilobium hooglandii P.H.Raven (Pandanaceae) Pandanus hooglandii H.St.John (Piperaceae) Piper hooglandii (I.Hutton & P.S.Green) M.A.Jaram. (Rosaceae) Potentilla hooglandii Kalkman (Rutaceae) Evodiella hooglandii B.L.Linden

References

Worked examples

Example 1 — a first encounter with Ruurd Dirk Hoogland

Start with the simplest possible case. Write down what Ruurd Dirk Hoogland claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Ruurd Dirk Hoogland 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 Ruurd Dirk Hoogland 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 Ruurd Dirk Hoogland

In research: Ruurd Dirk Hoogland appears in astronomy 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 Ruurd Dirk Hoogland 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: Ruurd Dirk Hoogland is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1922 births, 1994 deaths, 20th-century Dutch botanists, so understanding it makes those chapters shorter.
In everyday life: Look for Ruurd Dirk Hoogland 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 Ruurd Dirk Hoogland in 20 minutes

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

Frequently asked questions

What is Ruurd Dirk Hoogland in simple terms?

Why does Ruurd Dirk Hoogland matter?

Because it connects several astronomy 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 Ruurd Dirk Hoogland?

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 Ruurd Dirk Hoogland.