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http://plus.maths.org/content/taxonomy/term/257
enMaths in a minute: What's average?
http://plus.maths.org/content/maths-minute-all-about-averages
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<p>Why the humble average can be grossly misleading.</p>
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<p>Most people have more than the average number of ears. This might seem odd, but it's true. The vast majority of people have two ears, but the few who have only one or none bring the average down to less than two. It's easy to illustrate this by imagining there are only five people in the world with one of them having only one ear. The average number of ears is </p><p><a href="http://plus.maths.org/content/maths-minute-all-about-averages" target="_blank">read more</a></p>http://plus.maths.org/content/maths-minute-all-about-averages#commentsaverageFP-top-storymedianmodestatisticsTue, 10 Feb 2015 11:34:20 +0000mf3446310 at http://plus.maths.org/contentNatural frequencies and music
http://plus.maths.org/content/natural-frequencies-and-music
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David Henwood </div>
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In the first of two articles, <b>David Henwood</b> discusses the vibrations that can be harnessed by musical instrument makers. </div>
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<div class="pub_date">January 1998</div>
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<p>Musical instruments are able to create sound because of a property which they share in common with most structures, that they can be made to vibrate at one of a set of frequencies with ease. At all other frequencies it is a struggle. The frequencies to which they naturally respond are called <em>natural frequencies</em>, and the corresponding shapes into which they deform during the vibration
are called <em>modes</em>. It is usually the first, or lowest, natural frequency which is dominant.</p><p><a href="http://plus.maths.org/content/natural-frequencies-and-music" target="_blank">read more</a></p>http://plus.maths.org/content/natural-frequencies-and-music#comments4differential equationfrequencymathematics and musicmodeoscillationspringThu, 01 Jan 1998 00:00:00 +0000plusadmin2145 at http://plus.maths.org/content