2
https://plus.maths.org/content/issue/issue/2
en/issue2
https://plus.maths.org/content/issue2
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<span class="date-display-single">May 1997</span> </div>
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<p>What mathematicians get up to isn't all about heavy calculations and proof. In this issue we look at some recent mathematical discoveries in the world of games and also explore a few of the ways in which mathematics has helped to solve difficult problems in large, complex communication networks.</p>
2indexTue, 01 Jun 2010 11:47:56 +0000plusadmin5191 at https://plus.maths.org/content
https://plus.maths.org/content/os/issue2/staffroom/cal97
<p><a href="https://plus.maths.org/content/os/issue2/staffroom/cal97" target="_blank">read more</a></p>2staffWed, 01 Dec 1999 00:00:00 +0000plusadmin4816 at https://plus.maths.org/content
https://plus.maths.org/content/os/issue2/staffroom/newcores
<p><a href="https://plus.maths.org/content/os/issue2/staffroom/newcores" target="_blank">read more</a></p>2staffWed, 01 Dec 1999 00:00:00 +0000plusadmin4819 at https://plus.maths.org/content
https://plus.maths.org/content/os/issue2/editorial
<p><a href="https://plus.maths.org/content/os/issue2/editorial" target="_blank">read more</a></p>2editorialWed, 01 Dec 1999 00:00:00 +0000plusadmin4870 at https://plus.maths.org/contentAre the polls right?
https://plus.maths.org/content/are-polls-right
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<img class="imagefield imagefield-field_abs_img" width="109" height="110" alt="" src="https://plus.maths.org/content/sites/plus.maths.org/files/issue2/polls/icon.jpg?862441200" /> </div>
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The British General Election (May 1997) is an example of how simple mathematical ideas help in understanding information that involves numbers. </div>
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<p>The British General Election (May 1997) is an example of how simple mathematical ideas help in understanding information that involves numbers.</p>
<p>The predictions of the five main opinion polls, taken the day before the election, are shown in the following table and chart: <!-- FILE: include/centrefig.html --></p><p><a href="https://plus.maths.org/content/are-polls-right" target="_blank">read more</a></p>https://plus.maths.org/content/are-polls-right#comments2pollingpredictionsampling errorWed, 30 Apr 1997 23:00:00 +0000plusadmin2152 at https://plus.maths.org/contentLetters
https://plus.maths.org/content/letters-3
<p><a href="https://plus.maths.org/content/letters-3" target="_blank">read more</a></p>2editorialWed, 30 Apr 1997 23:00:00 +0000plusadmin4931 at https://plus.maths.org/contentWhat mathematicians get up to
https://plus.maths.org/content/what-mathematicians-get
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William Hartston </div>
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<img class="imagefield imagefield-field_abs_img" width="109" height="110" alt="" src="https://plus.maths.org/content/sites/plus.maths.org/files/issue2/games/icon.jpg?862441200" /> </div>
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After 5,000 years, the game of Nine Men's Morris has succumbed to the power of modern computing, plus other recent mathematical discoveries in the world of games. </div>
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<p>After 5,000 years, the game of Nine Men's Morris has succumbed to the power of modern computing. William Hartston looks at other recent mathematical discoveries in the world of games. <h3 align="center">Ancient games from Iceland, India and England</h3>
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<!-- FILE: include/centrefig.html --></p><p><a href="https://plus.maths.org/content/what-mathematicians-get" target="_blank">read more</a></p>https://plus.maths.org/content/what-mathematicians-get#comments2computer programminggame of no chancerecreational gameWed, 30 Apr 1997 23:00:00 +0000plusadmin2153 at https://plus.maths.org/contentPollsters vie for the right results
https://plus.maths.org/content/pollsters-vie-right-results
<p><a href="https://plus.maths.org/content/pollsters-vie-right-results" target="_blank">read more</a></p>2editorialWed, 30 Apr 1997 23:00:00 +0000plusadmin4949 at https://plus.maths.org/contentAgner Krarup Erlang (1878 - 1929)
https://plus.maths.org/content/agner-krarup-erlang-1878-1929
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<img class="imagefield imagefield-field_abs_img" width="109" height="110" alt="" src="https://plus.maths.org/content/sites/plus.maths.org/files/issue2/erlang/icon.jpg?862441200" /> </div>
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The mathematics underlying today's complex telephone networks is still based on his work. Erlang was the first person to study the problem of telephone networks. </div>
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<p><a href="https://plus.maths.org/content/agner-krarup-erlang-1878-1929" target="_blank">read more</a></p>https://plus.maths.org/content/agner-krarup-erlang-1878-1929#comments2Erlang's formulaInformation theorynetworkWed, 30 Apr 1997 23:00:00 +0000plusadmin2154 at https://plus.maths.org/contentPlus Magazine
https://plus.maths.org/content/plus-magazine-26
<p><a href="https://plus.maths.org/content/plus-magazine-26" target="_blank">read more</a></p>2editorialWed, 30 Apr 1997 23:00:00 +0000plusadmin5108 at https://plus.maths.org/contentCall routing in telephone networks
https://plus.maths.org/content/call-routing-telephone-networks
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Richard Gibbens and Stephen Turner </div>
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<img class="imagefield imagefield-field_abs_img" width="109" height="110" alt="" src="https://plus.maths.org/content/sites/plus.maths.org/files/issue2/dar/icon.jpg?862441200" /> </div>
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Find out how modern telephone networks use mathematics to make it possible for a person to dial a friend in another country just as easily as if they were in the same street, or to read web pages that are on a computer in another continent. </div>
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<p>Nowadays we take it for granted that someone in England can make a phone call to Australia, or that someone in India can read web pages that are on a computer in Canada. We live in a society in which almost every home has its own telephone line which is connected to a local exchange in the nearest village or town, from there to a main exchange in the nearest city, and from there to any other
city in any country in the world.<p><a href="https://plus.maths.org/content/call-routing-telephone-networks" target="_blank">read more</a></p>https://plus.maths.org/content/call-routing-telephone-networks#comments2computer simulationErlang's formulanetworkrouting schemesticky routingWed, 30 Apr 1997 23:00:00 +0000plusadmin2155 at https://plus.maths.org/contentStudent interviews
https://plus.maths.org/content/student-interviews
<p><a href="https://plus.maths.org/content/student-interviews" target="_blank">read more</a></p>2editorialWed, 30 Apr 1997 23:00:00 +0000plusadmin5109 at https://plus.maths.org/contentTesting Bernoulli: a simple experiment
https://plus.maths.org/content/testing-bernoulli-simple-experiment
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<img class="imagefield imagefield-field_abs_img" width="109" height="110" alt="" src="https://plus.maths.org/content/sites/plus.maths.org/files/issue2/bottle/icon.jpg?862441200" /> </div>
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Here is an experiment that you can easily do yourself to test Bernoulli's equation. There are also 2 questions and answers. </div>
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<div class="pub_date">May 1997</div>
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<p>In our last issue we introduced you to the Bernoulli equation which helps explain the way fluids move. (See "<a href="/issue1/turb/index.html">Understanding turbulence</a>" in issue 1.) To recap, the Bernoulli equation is usually written like this: <!-- FILE: include/centrefig.html --></p><p><a href="https://plus.maths.org/content/testing-bernoulli-simple-experiment" target="_blank">read more</a></p>https://plus.maths.org/content/testing-bernoulli-simple-experiment#comments2bernoulli equationbottle experimentcalculusleast squaresturbulenceWed, 30 Apr 1997 23:00:00 +0000plusadmin2156 at https://plus.maths.org/contentCareer interview - Accountant
https://plus.maths.org/content/career-interview-accountant
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<div class="pub_date">May 1997</div>
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<p>Tim Pilkington works for a large firm of accountants and is a keen basketball player. He obtained a joint honours BSc in Mathematics, Physical Education and Sports Science at Loughborough University. He has also worked as a mathematics teacher.</p>
<p><b>What A-Levels did you do?</b></p>
<p>I did Double Maths, Physics and Chemistry.</p>
<p><b>At that stage did you already know what you wanted to do at University?</b></p><p><a href="https://plus.maths.org/content/career-interview-accountant" target="_blank">read more</a></p>https://plus.maths.org/content/career-interview-accountant#comments2accountingcareer interviewmathematics educationtaxWed, 30 Apr 1997 23:00:00 +0000plusadmin2404 at https://plus.maths.org/contentMathematical mysteries: the Goldbach conjecture
https://plus.maths.org/content/mathematical-mysteries-goldbach-conjecture
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<img class="imagefield imagefield-field_abs_img" width="100" height="100" alt="" src="https://plus.maths.org/content/sites/plus.maths.org/files/abstractpics/5/18_dec_2014_-_1513/question_icon.jpg?1418915626" /> </div>
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<p>Can every even number greater than 2 can be written as the sum of two primes? It's one of the trickiest questions in maths.</p>
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<p>Leonard Euler (1707-1783) corresponded with Christian Goldbach about the conjecture now named after the latter. </p>
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<p>Here is one of the trickiest unanswered questions in mathematics:</p>
<p><em>Can every even whole number greater than 2 be written as the sum of two primes?</em></p>
<p>A prime is a whole number which is only divisible by 1 and itself. Let's try with a few examples:</p><p><a href="https://plus.maths.org/content/mathematical-mysteries-goldbach-conjecture" target="_blank">read more</a></p>https://plus.maths.org/content/mathematical-mysteries-goldbach-conjecture#comments2Goldbach calculatorGoldbach ConjectureMathematical mysteriesprime numberWed, 30 Apr 1997 23:00:00 +0000plusadmin4756 at https://plus.maths.org/content