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Nikolaus Joseph von Jacquin

Nikolaus Joseph von Jacquin is a chemistry 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 Nikolaus Joseph von Jacquin rather than just read about it. In short: Nikolaus Joseph Freiherr von Jacquin (16 February 1727 – 26 October 1817) was a scientist who studied medicine, chemistry and botany. He travelled to the West Indies as part of an Austrian expedition and collected a large number of botanical specimens and described many species.

Nikolaus Joseph von Jacquin — main illustration
Nikolaus Joseph von Jacquin — illustration

Key takeaways

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

Reference excerpt

Nikolaus Joseph Freiherr von Jacquin (16 February 1727 – 26 October 1817) was a scientist who studied medicine, chemistry and botany. He travelled to the West Indies as part of an Austrian expedition and collected a large number of botanical specimens and described many species. He served as the first professor of chemistry in the mining academy at Schemnitz in Austria and later worked at the University of Vienna. He was the father of the botanist Joseph Franz von Jacquin.

Biography

Jacquin was born in Leiden in the Netherlands, the son of cloth manufacturer Claudius Nikolaus (1694–1743) Elizabeth Maria née Heyningen. He studied medicine at Leiden University, then moved first to Paris but did not complete his studies. He took an early interest in botany from interactions with Theodor Gronovius. In Paris he attended the lectures of Antoine Jussieu. His father's business declined and following Jacquin's father's death in 1743 he received help from Gerard van Swieten who had been their family physician. Their son Gottfried van Swieten (1733-1803) was also born in Leiden. Van Swieten had moved to Vienna to serve as protomedicus to Maria Theresa. He suggested that Jacquin study at Vienna which led to the move here in 1752 to complete his medical studies. He however spent time studying plants in the imperial gardens of Schönbrunn with Adrian van Steckhoven and Richard van der Schot. From 1754 to 1759 he was attached to the Austrian expedition to the West Indies to study and collect scientific objects. He collected plants for Francis I to grow at the Schönbrunn Palace, and amassed a large collection of animal, plant and mineral samples. In 1797, Alexander von Humboldt profited from studying these collections and conversing with Jacquin in preparation of his own journey to the Americas. In 1763, thanks to Van Swieten who suggested Jacquin to Johann Siegfried Graf Herberstein, he was appointed as professor of chemistry and mineralogy at the Bergakademie Schemnitz (now Banská Štiavnica in Slovakia). In 1768, he was appointed Professor of Botany and Chemistry and became director of the botanical gardens of the University of Vienna. For his work, he received the title Edler in 1774. In 1783, he was elected a foreign member of the Royal Swedish Academy of Sciences. In 1806, he was created a baron. In 1809, he became a correspondent of the Royal Institute, which later became the Royal Netherlands Academy of Arts and Sciences. Jacquin's main interest was in botany and plant systematics, corresponding with Carolus Linnaeus. He began to describe plants from the collections in his Enumeratio sterpium agri Vindobonensis (1762) and Selectarum sterpium americanarum historia (1763) and made us of artists to illustrate plants. While in Schemnitz he grew plants and published three volumes of Observationum botanicarum iconibus ab auctore delineatis illustratarum. Under his supervision he developed the botanical garden at Schönbrunn from 1780 and made it a rich collection. Jacquin married Catharina (d. 1791) daughter of councillor Johann Heinrich Schreibers of Vienna. Jacquin collaborated with scholars who regularly came to his home. He had a mastery of Greek and Latin and worked on the Dioscorides manuscripts in Vienna. He also played the flute. His younger son, Emil Gottfried (1767–1792), and his daughter, Franziska (1769–1850), were friends of Mozart; Mozart wrote two songs for Gottfried to publish under Gottfried's name ("Als Luise ...", K. 520, and "Das Traumbild", K. 530) and gave piano lessons to Franziska. Mozart dedicated a considerable number of his works to the Jacquin family, notably the Kegelstatt Trio. This was first played at the Jacquins' house in August 1786 with Franziska playing the piano. His older son Joseph Franz (1766–1839) succeeded him in 1797 as professor of botany and chemistry at the University of Vienna and wrote several notable botanical books. Von Jacquin died in Vienna. He is commemorated by the genera Jacquinia (Theophrastaceae) and Jacquiniella (Orchidaceae). In 2011, the Austrian Mint issued silver coins to mark his science expeditions to the Caribbean.

Publications Enumeratio systematica plantarum (1760) Enumeratio Stirpium Plerarumque (1762) Selectarum Stirpium Americanarum (1763) Observationum Botanicarum (part 1 1764, part 2 1767, part 3 1768, part 4 1771) Hortus Botanicus Vindobonensis (3 volumes, 1770–1776) with plates by Franz Anton von Scheidel Florae Austriacae (5 volumes, 1773–1778) Icones Plantarum Rariorum (3 volumes, 1781–1793) Plantarum Rariorum Horti Caesarei Schoenbrunnensis (4 volumes, 1797–1804) Fragmenta Botanica 1804–1809 (1809) Nicolai Josephi Jacquin collectaneorum supplementum ... Oxalis :Monographia iconibus illustrata Dreyhundert auserlesene amerikanische Gewächse nach linneischer Ordnung (with Zorn, Johannes) Nikolaus Joseph Edlen von Jacquin's Anfangsgründe der medicinisch-practischen Chymie : zum Gebrauche seiner Vorlesungen . Wappler, Vienna 1783 Digital edition by the University and State Library Düsseldorf Nikolaus Joseph Edlen von Jacquin's Anfangsgründe der medicinisch-practischen Chymie : zum Gebrauche seiner Vorlesungen . Wappler, Vienna, 2nd. ed. 1785 Digital edition by the University and State Library Düsseldorf

See also Category:Taxa named by Nikolaus Joseph von Jacquin

Notes

References

External links Media related to Nikolaus Joseph von Jacquin at Wikimedia Commons

Illustrations

Nikolaus Joseph von Jacquin illustration
Nikolaus Joseph von Jacquin: Selectarum Stirpium Americanarum Historia, 1780, National Library of Poland.
Selectarum Stirpium Americanarum Historia, 1780, National Library of Poland.
Nikolaus Joseph von Jacquin: Haemanthus pubescens L., Nikolaus Joseph von Jacquin 1798
Haemanthus pubescens L., Nikolaus Joseph von Jacquin 1798

Worked examples

Example 1 — a first encounter with Nikolaus Joseph von Jacquin

Start with the simplest possible case. Write down what Nikolaus Joseph von Jacquin claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, 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 Nikolaus Joseph von Jacquin 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 Nikolaus Joseph von Jacquin 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 Nikolaus Joseph von Jacquin

In research
Nikolaus Joseph von Jacquin appears in chemistry 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 Nikolaus Joseph von Jacquin 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
Nikolaus Joseph von Jacquin is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1727 births, 1817 deaths, 18th-century Austrian botanists, so understanding it makes those chapters shorter.
In everyday life
Look for Nikolaus Joseph von Jacquin 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 Nikolaus Joseph von Jacquin in 20 minutes

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

Frequently asked questions

What is Nikolaus Joseph von Jacquin in simple terms?

Nikolaus Joseph Freiherr von Jacquin (16 February 1727 – 26 October 1817) was a scientist who studied medicine, chemistry and botany. He travelled to the West Indies as part of an Austrian expedition and collected a large number of botanical specimens and described many species.

Why does Nikolaus Joseph von Jacquin matter?

Because it connects several chemistry 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 Nikolaus Joseph von Jacquin?

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 Nikolaus Joseph von Jacquin.

Tags

  • 1727 births
  • 1817 deaths
  • 18th-century Austrian botanists
  • 18th-century Dutch botanists
  • 18th-century Dutch chemists
  • 18th-century Dutch naturalists
  • 18th-century botanists from the Holy Roman Empire
  • 18th-century explorers from the Holy Roman Empire
  • Austrian barons
  • Botanists active in North America
  • Botanists active in the Caribbean
  • Botanists from the Austrian Empire

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