GET https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/en/media/915-gears-sketch

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App\Entity\MediaTranslation
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App\Entity\MediaTranslation {#1381
  -id: 6845
  -title: "Gears sketch"
  -description: """
    <p>A gear train is formed when at least two toothed wheels are interconnected. Only a toothed wheel is driving. The others are just trained (or &quot;led&quot;). A smaller driven wheel than the driver wheel will rotate faster and conversely a larger driven wheel will rotate more slowly.</p>\r\n
    \r\n
    <p>It is on this principle that the mechanisms of changes of speed are based. The gear ratio is also called the &quot;transmission ratio&quot;. The gear system + chain transmission of the bike is a very good illustration of the transmission of a rotational movement between two wheels. The rotation speed of the rear gears depends on the transmission ratio between the platform (front wheel) and the pinion (rear wheel).</p>\r\n
    \r\n
    <p>To find the transmission ratio of a gear train is to compare the numbers of teeth and thus the radii.</p>\r\n
    \r\n
    <p><strong>Draw</strong> a circle in the screen to create a wheel. The size of the wheels is constrained to illustrate simple ratios: 10, 15, 20, 30, 40, 50, 60 teeth.</p>\r\n
    \r\n
    <p>The driving wheel is grayed out. All driving wheels rotate at the same speed.</p>\r\n
    \r\n
    <p><strong>Surround</strong> two wheels to create a transmission chain.</p>\r\n
    \r\n
    <p><strong>Click</strong> on a wheel to select or drag it.</p>\r\n
    \r\n
    <p><strong>Strike </strong>through&nbsp;an item to remove it.</p>\r\n
    \r\n
    <p>Credit: Frank Leenaars&nbsp;&amp;&nbsp;eduMedia</p>
    """
  -legends: "Teeth"
  -goals: """
    <ul>\r\n
    \t<li>To make a gear train and identify the drive wheel and the driven wheel(s).</li>\r\n
    \t<li>To illustrate how to convey a movement through a chain.</li>\r\n
    \t<li>To calculate a transmission ratio.</li>\r\n
    \t<li>To explain how the bike works and the ability to change gears.</li>\r\n
    </ul>
    """
  -more: null
  -scenario: null
  -features: "<p>Draw a circle on the stage to create a wheel. Surround two wheels to create a transmission chain.\nClick on a wheel to select it or drag&nbsp;it.\nStrike<strong>&nbsp;</strong>through&nbsp;a wheel or a chain to remove it.\nCredit :&nbsp;Frank Leenaars &amp;&nbsp;eduMedia</p>"
  -publishedAt: DateTimeImmutable @1540857600 {#1377
    date: 2018-10-30 00:00:00.0 UTC (+00:00)
  }
  -preventIndexForSearch: false
  #locale: "en"
  #translatable: App\Entity\Media {#1308 …}
  #status: "published"
  #createdAt: DateTime @1523981019 {#1379
    date: 2018-04-17 16:03:39.0 UTC (+00:00)
  }
  #updatedAt: DateTime @1699086982 {#1380
    date: 2023-11-04 08:36:22.0 UTC (+00:00)
  }
}
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MediaTranslationNormalizer (920.65 ms) 937.12 ms

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