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physics

Jeton

Jeton 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 Jeton rather than just read about it. In short: Jetons or jettons are tokens or coin-like medals produced across Europe from the 13th through the 18th centuries. They were produced as counters for use in calculation on a counting board, a lined board similar to an abacus.

Jeton — main illustration
Jeton — illustration

Key takeaways

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

Reference excerpt

Jetons or jettons are tokens or coin-like medals produced across Europe from the 13th through the 18th centuries. They were produced as counters for use in calculation on a counting board, a lined board similar to an abacus. Jetons for calculation were commonly used in Europe from about 1200 to 1700, and remained in occasional use into the early nineteenth century. They also found use as a money substitute in games, similar to modern casino chips or poker chips. Thousands of different jetons exist, mostly of religious and educational designs, as well as portraits, the last of which most resemble coinage, somewhat similar to modern, non-circulation commemorative coins. The spelling "jeton" is from the French; it is sometimes spelled "jetton" in English.

Roman calculi The Romans similarly used pebbles (in Latin: calculi "little stones", whence English calculate). Addition and subtraction is straightforward, and relatively efficient algorithms for multiplication and division were known.

Middle Ages The custom of stamping counters like coins began in France, with the oldest known coming from the fiscal offices of the royal government of France and dating from around the middle of the 13th century. From the late 13th century to the end of the 14th century, jetons were produced in England, similar in design to contemporary Edwardian pennies. Although they were made of brass they were often pierced or indented at the centre to avoid them being plated with silver and passed off as real silver coins. By the middle of the 14th century, English jetons were being produced in a larger size, similar to the groat. Throughout the 15th century competition from France and the Low Countries ended jeton manufacture in England, but not for long. Nuremberg jeton masters initially started by copying counters of their European neighbours, but by the mid 16th century they gained a monopoly by mass-producing cheaper jetons for commercial use. Later – "counter casting" being obsolete – production shifted to jetons for use in games and toys, sometimes copying more or less famous jetons with a political background. Mints in the Low Countries in the late Middle Ages in general produced the counters for official bookkeeping. Most of them show the effigy of the ruler within a flattering text and on the reverse the ruler's escutcheon and the name or city of the accounting office.

During the Dutch Revolt (1568–1609) this pattern changed and by both parties, the North in front, about 2,000 different, mostly political, jetons (Dutch: Rekenpenning) were minted depicting the victories, ideals and aims. Specifically in the last quarter of the 16th century, where geuzen or "beggars" made important military contributions to the Dutch side and bookkeeping was already done without counters, the production in the North was just for propaganda. The mints and treasuries of the big estates in Central Europe used their own jetons and then had a number of them struck in gold and silver as New Year gifts for their employees, who in turn commissioned jetons with their own mottoes and coats-of-arms. In the sixteenth century the Czech Royal Treasury bought between two and three thousand pieces at the beginning of each year.

As Arabic numerals and the zero came into use, "pen reckoning" gradually displaced "counter casting" as the common accounting method.

Modern use

In commerce In the 21st century, jetons continue to be used in some countries as telephone tokens or gettone in coin-operated public telephones or in vending machines. They are usually made of metal or hard plastic. In German the word Jeton refers specifically to casino tokens. In Polish the word żeton, pronounced similarly to French jeton, refers both to tokens used in vending machines, phones etc. and to those used in casinos. The word жетон has the same use in Russian, as does the word jeton in Romanian and žetoon in Estonian. However, in Hungary the word zseton is (somewhat dated) slang for money, particularly coins. Plastic jetons used to be used for paying the fare for the Star Ferry in Hong Kong. Beer festivals in France, Belgium, Luxembourg, and the Netherlands will often explicitly use the term "jeton" to describe the plastic, pre-paid tokens which are used in exchange of individual pours of beer samples from vendors at these events.

Leisure use

Apart from their monetary use in casinos, jetons are used in card games, particularly in France but also in Denmark. They are traditionally made of wood, bone, or plastic of different shapes and sizes to represent different values such as 1, 5, 10, 50 or 100 points. For example, in traditional French games, jetons are round and usually worth 1 unit; fiches are long and rectangular in shape and may be worth 10 to 20 jetons; contrats are the short rectangular counters and may be worth, say, 100 units. In the game of Boston, each player has five jetons, which represent one hundred each; twenty fiches, which represent fifties, and twenty contrats, which represent fives. In Tresillo (the Spanish variant of ombre), each player has instead ten fiches, representing one each; ten jetons, representing five; and ten contrats, representing ten. The jetons are also stained or coloured so that each player can have his or her own colour. This facilitates scoring because players do not need to start with exactly the same number of counters. Nowadays plastic jetons are a cheap alternative. Games that typically use jetons include Nain Jaune, Belote, Piquet, Ombre, Mistigri, Danish Tarok, Boston and Vira. A dedicated box called virapulla, containing four smaller boxes of jetons of different colours, is used to contain Vira jetons.

Other uses In France and other countries a jeton is also a token amount of money paid to members of a society or a legislative chamber each time they are present in a meeting.

See also Casino token Devotional medal Location arithmetic Telephone token Gettone

References

Works cited

Further reading Rouyer, Jules; Hucher, Eugène Frédéric Ferdinand; Pastoureau, Michel (1982). Histoire du jeton au Moyen âge (in French). Kleisner, Tomáš; Zuzana Holečková (2006). Coins and Medals of the Last Rosenbergs. Prague: National Museum. ISBN 80-7036-206-5. Snelling, Thomas (1769). A View of the Origin, Nature, and Use of Jettons Or Counters.

Illustrations

Jeton: Gold jeton, Popel of Lobkowicz by Engelhart, Prague 1592, Ø 24 millimetres (0.94 in)
Gold jeton, Popel of Lobkowicz by Engelhart, Prague 1592, Ø 24 millimetres (0.94 in)
Jeton illustration
Jeton illustration
Jeton illustration
Jeton illustration

Worked examples

Example 1 — a first encounter with Jeton

Start with the simplest possible case. Write down what Jeton 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 Jeton 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 Jeton 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 Jeton

In research
Jeton 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 Jeton 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
Jeton is common in secondary-school and first-year university syllabi. It links to neighbouring topics Card game equipment, Gaming devices, Mechanical calculators, so understanding it makes those chapters shorter.
In everyday life
Look for Jeton 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 Jeton in 20 minutes

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

Frequently asked questions

What is Jeton in simple terms?

Jetons or jettons are tokens or coin-like medals produced across Europe from the 13th through the 18th centuries. They were produced as counters for use in calculation on a counting board, a lined board similar to an abacus.

Why does Jeton 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 Jeton?

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 Jeton.

Tags

  • Card game equipment
  • Gaming devices
  • Mechanical calculators
  • Token coins

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