astronomy

Julius von Kennel

Julius von Kennel 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 Julius von Kennel rather than just read about it. In short: Julius von Kennel (10 June 1854 – 24 January 1939) was a German zoologist and entomologist born in Schwegenheim. He studied at the University of Würzburg, where he came under the influence of zoologist Karl Semper (1832–1893).

Key takeaways

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

Reference excerpt

Julius von Kennel (10 June 1854 – 24 January 1939) was a German zoologist and entomologist born in Schwegenheim. He studied at the University of Würzburg, where he came under the influence of zoologist Karl Semper (1832–1893). Later, he worked as an assistant to Karl August Möbius (1825–1908) at the University of Kiel, and following his habilitation, he returned to the university of Würzburg. In 1882-83 he participated on a research expedition to Trinidad and Venezuela (including the Orinoco River region). Later, he served as a lecturer at the Forstakademie in Aschaffenburg, and from 1887 to 1915, was a full professor of zoology at the Imperial University of Dorpat. Kennel was an authority on Microlepidoptera, and in particular the family- Tortricidae (tortrix moths). In 1898-99 he was president of the Estonian Naturalists' Society, and in 1922 became director of the zoological museum in Riga.

Written works 1883: Biologische und faunistische Notizen aus Trinidad. 28 pp. - Biological and faunistic notes from Trinidad. 1887: Über Theilung und Knospung der Thiere. 60 pp. 1891: Die Verwandtschaftsverhältnisse der Arthropoden, K. F. Koehler. 48 pp. - Relationships of arthropods. 1893: Lehrbuch der Zoologie. Stuttgart: Ferdinand Enke. 678 pp. - Textbook of zoology. 1896: Studien über sexuellen Dimorphismus: Variation und verwandte Erscheinungen. Druck von C. Mattiesen. 64 pp. - Studies of sexual dimorphism: variation and related phenomena. 1921, The Palaearktischen Tortriciden, eine monographische Darstellung. Stuttgart: E. Schweizerbart'sche Verlagsbuchhandlung. 742 pp. - Palaearctic Tortricidae, a monograph.pdf at Zobodat 1923, Ueber Ctenodrilus Pardalis Clap, Ein Beitr. Zur Kenntniss Der Anatomie Und Knospung Der Anneliden, Neuauflage BiblioBazaar, 2010.

References

Eggers, F.: 1939, (Kennel, J.). Zool. Anz. 125(9/10): p. 272. Eggers, F.: 1942, (Kennel, J.). Korrespondenzbl. Naturf. Ver. Riga, 64: p. 13 - 14. Escherich, K.: 1943, In Memoriam Julius von Kennel. Z. angew. Ent., 30: p. 148 - 151. Sachtleben, H.: 1939, (Kennel, J. von). Arb. morph. taxon. Ent. Berlin-Dahlem, 6(2): p. 188. Strand, E.: 1940, (Kennel, J.). Folia Zoologica et Hydrobiologica, 10: p. 364 - 368. Groll, E. K. (ed.): 2006, Entomologen der Welt (Biographien, Sammlungsverbleib). Datenbank 2. Version, DEI im ZALF e. V.: Kennel, Julius von: (Internet).

Illustrations

Worked examples

Example 1 — a first encounter with Julius von Kennel

Start with the simplest possible case. Write down what Julius von Kennel 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 Julius von Kennel 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 Julius von Kennel 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 Julius von Kennel

In research: Julius von Kennel 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 Julius von Kennel 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: Julius von Kennel is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1854 births, 1939 deaths, 19th-century German zoologists, so understanding it makes those chapters shorter.
In everyday life: Look for Julius von Kennel 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 Julius von Kennel in 20 minutes

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

Frequently asked questions

What is Julius von Kennel in simple terms?

Why does Julius von Kennel 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 Julius von Kennel?

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 Julius von Kennel.