astronomy

Martin Vahl

Martin Vahl 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 Martin Vahl rather than just read about it. In short: Martin Henrichsen Vahl (10 October 1749 – 24 December 1804) was a Danish-Norwegian botanist, herbalist and zoologist. Biography Martin Vahl was born in Bergen, Norway and attended Bergen Cathedral School.

Key takeaways

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

Reference excerpt

Martin Henrichsen Vahl (10 October 1749 – 24 December 1804) was a Danish-Norwegian botanist, herbalist and zoologist.

Biography Martin Vahl was born in Bergen, Norway and attended Bergen Cathedral School. He studied botany at the University of Copenhagen and at Uppsala University under Carl Linnaeus. He edited Flora Danica fasc. XVI-XXI (1787–1799), Symbolæ Botanicæ I-III (1790–1794), Eclogæ Americanæ I-IV (1796–1807) and Enumeratio Plantarum I-II (1804–1805). He lectured at the University of Copenhagen Botanical Garden from 1779 to 1782. Vahl made several research trips in Europe and North Africa between 1783 and 1788. He became professor at the Society for Natural History at the University of Copenhagen in 1786 and was a full professor of botany from 1801 to his death. In 1792, he was elected a foreign member of the Royal Swedish Academy of Sciences. He died in Copenhagen, Denmark at age 55. His son Jens Vahl also became a botanist.

Authority name This botanist is denoted by the author abbreviation Vahl when citing a botanical name.

References

Other sources Christensen, Carl (1932) Martin Vahl, pp. 85–88 in: Meisen, V. Prominent Danish Scientists through the Ages. University Library of Copenhagen 450th Anniversary. Levin & Munksgaard, Copenhagen.

External links Facsimile of Enumeratio plantarum, Hauniae, 1805–1806.

Illustrations

Worked examples

Example 1 — a first encounter with Martin Vahl

Start with the simplest possible case. Write down what Martin Vahl 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 Martin Vahl 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 Martin Vahl 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 Martin Vahl

In research: Martin Vahl 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 Martin Vahl 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: Martin Vahl is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1749 births, 1804 deaths, 18th-century Danish botanists, so understanding it makes those chapters shorter.
In everyday life: Look for Martin Vahl 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 Martin Vahl in 20 minutes

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

Frequently asked questions

What is Martin Vahl in simple terms?

Martin Henrichsen Vahl (10 October 1749 – 24 December 1804) was a Danish-Norwegian botanist, herbalist and zoologist. Biography Martin Vahl was born in Bergen, Norway and attended Bergen Cathedral School.

Why does Martin Vahl 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 Martin Vahl?

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 Martin Vahl.