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astronomy

Jan van der Hoeven

Jan van der Hoeven 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 Jan van der Hoeven rather than just read about it. In short: Jan van der Hoeven (9 February 1801 – 10 March 1868) was a Dutch zoologist. His most famous book is Handboek der Dierkunde (1827–1833), translated into German and English (by prof.

Jan van der Hoeven — main illustration
Jan van der Hoeven — illustration

Key takeaways

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

Reference excerpt

Jan van der Hoeven (9 February 1801 – 10 March 1868) was a Dutch zoologist. His most famous book is Handboek der Dierkunde (1827–1833), translated into German and English (by prof. Clark). He wrote as readily about crocodiles as about butterflies, lancelets and lemurs. His research on the nautilus resulted in the discovery of a secondary sexual organ of unknown function which was then named after him as Hoeven's organ or Van der Hoeven's organ.

Biography Jan van der Hoeven came from a wealthy family of merchants in Rotterdam. In 1819 he moved to Leiden. In 1822 he got a degree in physics and in 1824 in medicine. After a visit to Paris he started working as a family doctor in Rotterdam, but in 1826 he was appointed Professor of Zoology and Mineralogy at the University of Leiden. He married in that year to Anna van Stolk. In his youth Van der Hoeven was influenced by and paid tribute to the German philosopher Johann Gottfried Herder and he was friendly with Willem Bilderdijk, a prominent Dutch lawyer, author and historian, known for his Revivalism. Two of his brothers were also professor: Abraham was a Remonstrant theologian, Cornelis a physician. By the 19th century it had become impossible to understand and comprehend all knowledge, but Van der Hoeven was a rather old fashioned scientist, (representing the Biedermeier era) and a generalist: neither specializing, nor becoming a theoreticist. In 1834 he started a magazine in natural history and physiology (Tijdschrift voor natuurlijke geschiedenis en physiologie). Van der Hoeven was also involved in education, writing a biology book for pupils in secondary school, although, paradoxically, he was one of the last professors in Leiden to teach in Latin. In 1860 he asked permission to leave the university. He died in Leiden eight years later. In 1858, he was elected a foreign member of the Royal Swedish Academy of Sciences. In 1864 he published the Latin biology textbook Philosophia Zoologica. In 1832 he became correspondent of the Royal Institute and in 1845 member. In 1851 the Royal Institute became the Royal Netherlands Academy of Arts and Sciences.

Tribute Leptobarbus hoevenii (Bleeker 1851) is named in honor of Bleeker's fellow Dutchman, "le célèbre professeur de zoologie". Hemigobius hoevenii (Bleeker, 1851) was also named for him.

See also Category:Taxa named by Jan van der Hoeven

References

Further reading Anonym 1867–1868: [Hoeven, J. van der] Proc. Linn. Soc. London 1867–68 CX-CXI Anonym 1868 [Hoeven, J. van der] Ann. Mag. Nat. Hist. (6), London [1](4) Osborn, H. 1952 A Brief History of Entomology Including Time of Demosthenes and Aristotle to Modern Times with over Five Hundred Portraits. Columbus, Ohio, The Spahr & Glenn Company. Lubach, D. (1868) Jan van der Hoeven geschetst door. In: Album der Natuur, p. 161–165.

Works Handboek der Dierkunde (1827–1833), first edition, Part 1, Part 2, Plates. Handboek der Dierkunde (1846–1855), second edition, Part 1, Part 2. English translation: Handbook of zoology (1856–1858). German translation: Handbuch der zoologie (1850–1856).

External links Works by Jan van der Hoeven at Project Gutenberg Works by or about Jan van der Hoeven at the Internet Archive Google books on Van der Hoeven Biography album with cartes de visite – photos of his colleagues and descriptions of his travels in Europe

Illustrations

Jan van der Hoeven illustration

Worked examples

Example 1 — a first encounter with Jan van der Hoeven

Start with the simplest possible case. Write down what Jan van der Hoeven 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 Jan van der Hoeven 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 Jan van der Hoeven 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 Jan van der Hoeven

In research
Jan van der Hoeven 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 Jan van der Hoeven 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
Jan van der Hoeven is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1801 births, 1861 deaths, 19th-century Dutch botanists, so understanding it makes those chapters shorter.
In everyday life
Look for Jan van der Hoeven 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 Jan van der Hoeven in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Jan van der Hoeven means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Jan van der Hoeven out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Jan van der Hoeven in simple terms?

Jan van der Hoeven (9 February 1801 – 10 March 1868) was a Dutch zoologist. His most famous book is Handboek der Dierkunde (1827–1833), translated into German and English (by prof.

Why does Jan van der Hoeven 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 Jan van der Hoeven?

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 Jan van der Hoeven.

Tags

  • 1801 births
  • 1861 deaths
  • 19th-century Dutch botanists
  • 19th-century writers in Latin
  • Academic staff of Leiden University
  • Dutch entomologists
  • Members of Teylers Tweede Genootschap
  • Members of the Royal Netherlands Academy of Arts and Sciences
  • Members of the Royal Swedish Academy of Sciences
  • Scientists from Rotterdam

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