Commands
10
Queries
5.18 ms
Query time
0
Failed Queries
| # | Time | Connection | Command |
|---|---|---|---|
| 1 | 0.66 ms | cache | CONNECT redis.internal 6379 5 <null> 5 5 |
| 2 | 0.38 ms | cache | SELECT 0 |
| 3 | 0.37 ms | cache | MGET wJo3GJ9dRH:data > anonymous-media > id=6845,locale=en,domain=www |
| 4 | 0.70 ms | cache | INFO Memory |
| 5 | 0.03 ms | cache | MULTI 2 |
| 6 | 0.15 ms | cache | SETEX wJo3GJ9dRH:data > anonymous-media > id=6845,locale=en,domain=www 2678399 ��A �_ Oa:2:{i:0;s:13:"cache-service";i:1;s:36:"cache-service-data > anonymous-media";}a:15:{s:2:"id";i:915;s:5:"title";s:12:"Gears sketch";s:4:"slug";s:12:"gears-sketch";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/915-6545f4764497b585662630.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/915-6545f4764497b585662630.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/915-6545f4764497b585662630.webp";}s:19:"thumbnailBackground";s:7:"#f6951d";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2018-10-30 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:284:"<ul> <li>To make a gear train and identify the drive wheel and the driven wheel(s).</li> <li>To illustrate how to convey a movement through a chain.</li> <li>To calculate a transmission ratio.</li> <li>To explain how the bike works and the ability to change gears.</li> </ul>";s:5:"width";i:550;s:6:"height";i:350;s:11:"description";s:1366:"<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 "led"). A smaller driven wheel than the driver wheel will rotate faster and conversely a larger driven wheel will rotate more slowly.</p> <p>It is on this principle that the mechanisms of changes of speed are based. The gear ratio is also called the "transmission ratio". 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> <p>To find the transmission ratio of a gear train is to compare the numbers of teeth and thus the radii.</p> <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> <p>The driving wheel is grayed out. All driving wheels rotate at the same speed.</p> <p><strong>Surround</strong> two wheels to create a transmission chain.</p> <p><strong>Click</strong> on a wheel to select or drag it.</p> <p><strong>Strike </strong>through an item to remove it.</p> <p>Credit: Frank Leenaars & eduMedia</p>";s:11:"suggestions";a:6:{i:0;a:9:{s:2:"id";i:391;s:5:"title";s:5:"Gears";s:4:"slug";s:5:"gears";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/391-6545f347288ed204809204.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/391-6545f347288ed204809204.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/391-6545f347288ed204809204.webp";}s:19:"thumbnailBackground";s:7:"#00a751";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:139:"<ul> <li>To define the basic principles of simple gear systems.</li> <li>To illustrate the possibilities of changing speed.</li> </ul>";}i:1;a:9:{s:2:"id";i:724;s:5:"title";s:28:"Gears and chain transmission";s:4:"slug";s:28:"gears-and-chain-transmission";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/724-6545f4246e395569630546.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/724-6545f4246e395569630546.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/724-6545f4246e395569630546.webp";}s:19:"thumbnailBackground";s:7:"#f487b9";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-12 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:177:"<ul> <li>To analyse and compare how different technologies involving the transfer of movement work.</li> <li>To know how to relate the demand and the technology.</li> </ul>";}i:2;a:9:{s:2:"id";i:681;s:5:"title";s:9:"Corkscrew";s:4:"slug";s:9:"corkscrew";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/681-6545f4049a1bb885183171.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/681-6545f4049a1bb885183171.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/681-6545f4049a1bb885183171.webp";}s:19:"thumbnailBackground";s:7:"#f6951d";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:296:"<ul> <li>To understand how a simple technical object functions by examining its technical drawing.</li> <li>To identify simple machines involved in the functioning of a technical object (lever, gear rack and pinion).</li> <li>To identify links, and guides in a technical object.</li> </ul>";}i:3;a:9:{s:2:"id";i:430;s:5:"title";s:13:"Unusual gears";s:4:"slug";s:13:"unusual-gears";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/430-6545f35defd7b291659271.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/430-6545f35defd7b291659271.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/430-6545f35defd7b291659271.webp";}s:19:"thumbnailBackground";s:7:"#f487b9";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:165:"<ul> <li>To illustrate the possibilities of varying the rotational speed in a gear system.</li> <li>To lllustrate the kinematics of rotating objects.</li> </ul>";}i:4;a:9:{s:2:"id";i:833;s:5:"title";s:25:"Video: The inclined plane";s:4:"slug";s:24:"video-the-inclined-plane";s:9:"mediaType";s:5:"video";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/833-6545f458ce04f622471538.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/833-6545f458ce04f622471538.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/833-6545f458ce04f622471538.webp";}s:19:"thumbnailBackground";s:7:"#00b7ad";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-08-03 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";N;}i:5;a:9:{s:2:"id";i:341;s:5:"title";s:15:"Bicycle history";s:4:"slug";s:15:"bicycle-history";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:157:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/341-6545f3289a911005423099.webp";s:10:"suggestion";s:158:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/341-6545f3289a911005423099.webp";s:5:"title";s:153:"https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/341-6545f3289a911005423099.webp";}s:19:"thumbnailBackground";s:7:"#f487b9";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2015-05-11 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:3:"UTC";}s:8:"isExpert";b:0;s:5:"goals";s:201:"<ul> <li>To make the connection between transmission by chain and gears.</li> <li>To define the ratio of transmission.</li> <li>To show an application of the calculation of perimeter.</li> </ul>";}}s:4:"tags";a:8:{i:0;s:4:"bike";i:1;s:5:"chain";i:2;s:10:"gear ratio";i:3;s:5:"gears";i:4;s:5:"ratio";i:5;s:14:"simple machine";i:6;s:12:"transmission";i:7;s:18:"transmission ratio";}s:12:"baseNodeName";s:10:"Technology";} |
| 7 | 0.04 ms | cache | SADD wJo3GJ9dRH:tagscache-service wJo3GJ9dRH:data > anonymous-media > id=6845,locale=en,domain=www |
| 8 | 0.03 ms | cache | SADD wJo3GJ9dRH:tagscache-service-data > anonymous-media wJo3GJ9dRH:data > anonymous-media > id=6845,locale=en,domain=www |
| 9 | 0.88 ms | cache | EXEC |
| 10 | 1.92 ms | cache | MGET wJo3GJ9dRH:data > locale-page-groups > locale=en |