physics

Johannes Browallius

Johannes Browallius is a physics 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 Johannes Browallius rather than just read about it. In short: Johannes Browallius (30 August 1707 – 25 July 1755), also called John Browall, was a Finnish and Swedish Lutheran theologian, physicist, botanist and at one time friend of Swedish taxonomist Carl Linnaeus. Career He was a professor of physics from 1737 to 1746, Professor of Theology 1746–49 and was the Bishop of Turku, then a diocese of the Church of Sweden, and Vice-Chancellor of The Royal Academy of Turku from 174…

Key takeaways

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

Reference excerpt

Career He was a professor of physics from 1737 to 1746, Professor of Theology 1746–49 and was the Bishop of Turku, then a diocese of the Church of Sweden, and Vice-Chancellor of The Royal Academy of Turku from 1749 until his death in 1755. He was an elected a member of the Royal Swedish Academy of Sciences in 1740.

Botanical activities In 1735 seeds of a plant collected in Panama by Robert Millar were donated to Philip Miller of the Chelsea Physic Garden in London. The plants were grown on and forwarded to the Royal Society but with the name Dalea. This plant was named Browallia (Species Plantarum 2: 631. 1753 [1 May 1753]; Genera Plantarum ed. 5, 1754) by the famous plant taxonomist Carl Linnaeus in honour of his fellow countryman and botanical colleague. Linnaeus's principles of botanical nomenclature were first expounded in Fundamenta Botanica of 1736 and these were later elaborated, with numerous examples, in his Critica Botanica of 1737. The book was published in Germany when Linnaeus was 29 and the title page carries a discursus by Johannes Browall. The friendship was not to last. Coombes notes "Browallia demissa (weak). Renamed by Linnaeus from B. elata (tall) after falling out with Browall." Browall had advised the young Linnaeus to finish his studies abroad, then marry a rich girl – even though he was already engaged to Sara Lisa Moraea. Linnaeus did, indeed, spend the winter of 1737–1738 in Leiden, travelling on to France. While abroad, he was sent news that "his best friend B." had taken advantage of his absence to court Sara Lisa Moraea and had almost succeeded in persuading her that her fiancé would never return to Sweden. However, the bishop's suit failed; Sara Lisa and Linnaeus were married in 1739. The entry under Browallia grandiflora in Curtis’s Botanical Magazine of 1831 reports:

The intimacy and subsequent rupture between Browall and Linnaeus were commemorated by the latter in the specific appellations which he bestowed on the only three individuals of the genus then known. B. elata expresses the degree of their union; B. demissa its cessation; while the ambiguous name of a third species, B. alienata, while it intimates the uncertain characteristics of the plant, implies the subsequent difference between the two parties.

Publications

De scientia naturali, eiusque methodo (in Latin). Uppsala: Ludvig Decreaux. 1737.

Illustrations

Worked examples

Example 1 — a first encounter with Johannes Browallius

Start with the simplest possible case. Write down what Johannes Browallius claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, 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 Johannes Browallius 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 Johannes Browallius 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 Johannes Browallius

In research: Johannes Browallius appears in physics 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 Johannes Browallius 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: Johannes Browallius is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1707 births, 1755 deaths, 18th-century Finnish Lutheran bishops, so understanding it makes those chapters shorter.
In everyday life: Look for Johannes Browallius 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Johannes Browallius” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Johannes Browallius in 20 minutes

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

Frequently asked questions

What is Johannes Browallius in simple terms?

Johannes Browallius (30 August 1707 – 25 July 1755), also called John Browall, was a Finnish and Swedish Lutheran theologian, physicist, botanist and at one time friend of Swedish taxonomist Carl Linnaeus. Career He was a professor of physics from 1737 to 1746, Professor of Theology 1746–49 and was…

Why does Johannes Browallius matter?

Because it connects several physics 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 Johannes Browallius?

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 Johannes Browallius.