science

Jan van Koningsveld

Jan van Koningsveld 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 Jan van Koningsveld rather than just read about it. In short: Jan van Koningsveld (born 1969 in Emden) is a mental calculator. Career He is the champion of Extracting Square Roots of 2004 and 2008 as well as the champion of Calendar Calculation of 2008 at the Mental Calculation World Cups.

Key takeaways

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

Reference excerpt

Jan van Koningsveld (born 1969 in Emden) is a mental calculator.

Career He is the champion of Extracting Square Roots of 2004 and 2008 as well as the champion of Calendar Calculation of 2008 at the Mental Calculation World Cups. In addition, he finished second in the overall rankings of 2004, 2006 and 2008, fifth in 2010 and third in 2012, where he won the championship for cube roots. In 2022 he made his comeback, winning the silver medal in Calendar Calculations. Of all participants of the first nine editions (2004–2022) he has won most medals with a total of 15 (4/6/5). During the first Memoriad 2008, the Olympiad for Mental Calculation and Memory held in Istanbul, Turkey, Jan van Koningsveld won the gold medals in the categories Multiplication as well as Calendar Calculation. After the competition he was also able to even the world record in the category Calendar Calculation by calculating 56 days of the week (range 1600–2100) in 1 minute. He has held the world record several times, his highest record being 96 dates in one minute in 2015. He is also known as the only Mental Calculator to win all possible titles in Calendar Calculations, this being the World Cup, Memoriad and the World Record, in 2008. Jan van Koningsveld also held the world record for multiplying two five-digit numbers. He solved ten tasks correctly in 3:06 minutes on 25 November 2005. That record was broken by Marc Jornet Sanz during world record attempts at the 2010 Mental Calculation World Cup

References

External links http://memoriad.com/ MEMORIAD http://www.recordholders.org/en/list/memory.html Memory and Mental Calculation World Records http://www.recordholders.org/en/events/worldcup/index.html Mental Calculation World Cup Site

Illustrations

Worked examples

Example 1 — a first encounter with Jan van Koningsveld

Start with the simplest possible case. Write down what Jan van Koningsveld 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 Jan van Koningsveld 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 Jan van Koningsveld 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 Jan van Koningsveld

In research: Jan van Koningsveld 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 Jan van Koningsveld 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: Jan van Koningsveld is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1969 births, Living people, Mental calculators, so understanding it makes those chapters shorter.
In everyday life: Look for Jan van Koningsveld 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 Jan van Koningsveld in 20 minutes

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

Frequently asked questions

What is Jan van Koningsveld in simple terms?

Jan van Koningsveld (born 1969 in Emden) is a mental calculator. Career He is the champion of Extracting Square Roots of 2004 and 2008 as well as the champion of Calendar Calculation of 2008 at the Mental Calculation World Cups.

Why does Jan van Koningsveld 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 Jan van Koningsveld?

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 Jan van Koningsveld.