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Johan Ernst Gunnerus

Johan Ernst Gunnerus 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 Johan Ernst Gunnerus rather than just read about it. In short: Johan Ernst Gunnerus (26 February 1718 – 25 September 1773) was a Norwegian bishop and botanist. Gunnerus was born at Christiania.

Johan Ernst Gunnerus — main illustration
Johan Ernst Gunnerus — illustration

Key takeaways

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

Reference excerpt

Johan Ernst Gunnerus (26 February 1718 – 25 September 1773) was a Norwegian bishop and botanist. Gunnerus was born at Christiania. He was bishop of the Diocese of Nidaros from 1758 until his death and also a professor of theology at the University of Copenhagen.

Biography Gunnerus was born and raised in Christiania in Norway. He enrolled at the University of Copenhagen in Denmark in 1737, but had to postpone his studies for three years because of poverty. He studied in Copenhagen from 1740, at Halle in Germany from 1742, and at Jena from 1744, where he received his Magister degree in 1745 and in 1753 was admitted to the Faculty of Philosophy. At Jena he published extensively, notably a work on natural and international law in eight volumes. In 1754 he was recalled to Denmark and appointed Professor and Rector at Herlufsholm. In 1758 he became Bishop of the Diocese of Nidaros in Trondheim, Norway. Gunnerus was very interested in natural history and accumulated a large collection of specimens from visits to central and northern Norway. He also encouraged others to send him specimens. Together with the historians Gerhard Schöning and Peter Frederik Suhm he founded the Trondheim Society in 1760. In 1767 it received royal recognition and became the Royal Norwegian Society of Sciences and Letters. Gunnerus was vice President and Director Perpetuus of the Society from 1767 to 1773. The society began publishing its journal in 1761, entitled Det Trondhiemske Selskabs Skrifter, still published today as Det Kongelige Norske Videnskabers Selskabs Skrifter. In 1765 Gunnerus published a description of a basking shark in this journal, giving it the scientific name Squalus maximius. Gunnerus was the author of Flora Norvegica (1766–1776). He contributed notes on the ornithology of northern Norway to Knud Leem's Beskrivelse over Finmarkens Lapper (1767), translated into English in 1808 as An Account of the Laplanders of Finmark. In this Gunnerus was the first person to give a scientific name to the Greenshank. Gunnerus discussed a number of his findings with Carolus Linnæus, mainly known as Carl von Linné, with whom he was in correspondence. The original letters from Carolus Linnæus are held at the Royal Norwegian Society of Sciences and Letters in Trondheim, while the ones from Gunnerus to Linnæus are found at the Linnean Society of London. Gunnerus was the first to suggest that since the northern lights were caused by the Sun, there also had to be auroras around the moon, Venus and Mercury. In 1766, Gunnerus was elected a foreign member of the Royal Swedish Academy of Sciences.

Legacy The plant genus Gunnera was named after him, as well as the Gunnerus Library. The Norwegian University of Science and Technology operates a research vessel, 'Gunnerus' named after him.

See also Category:Taxa named by Johan Ernst Gunnerus

Notes

References

External links

Publications by Gunnerus at the Göttinger Digitalisierungszentrum Books by and about Gunnerus on WorldCat Biography at the Nordisk familjebok (p. 641)

Illustrations

Johan Ernst Gunnerus illustration

Worked examples

Example 1 — a first encounter with Johan Ernst Gunnerus

Start with the simplest possible case. Write down what Johan Ernst Gunnerus 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 Johan Ernst Gunnerus 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 Johan Ernst Gunnerus 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 Johan Ernst Gunnerus

In research
Johan Ernst Gunnerus 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 Johan Ernst Gunnerus 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
Johan Ernst Gunnerus is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1718 births, 1773 deaths, 18th-century Norwegian Lutheran bishops, so understanding it makes those chapters shorter.
In everyday life
Look for Johan Ernst Gunnerus 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 Johan Ernst Gunnerus in 20 minutes

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

Frequently asked questions

What is Johan Ernst Gunnerus in simple terms?

Johan Ernst Gunnerus (26 February 1718 – 25 September 1773) was a Norwegian bishop and botanist. Gunnerus was born at Christiania.

Why does Johan Ernst Gunnerus 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 Johan Ernst Gunnerus?

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 Johan Ernst Gunnerus.

Tags

  • 1718 births
  • 1773 deaths
  • 18th-century Norwegian Lutheran bishops
  • 18th-century Norwegian botanists
  • 18th-century Norwegian clergy
  • 18th-century Norwegian scientists
  • Bishops of Nidaros
  • Members of the Royal Swedish Academy of Sciences
  • Norwegian botanical writers
  • Norwegian bryologists
  • Norwegian mycologists
  • Norwegian ornithologists

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