Commands
10
Queries
231.72 ms
Query time
0
Failed Queries
| # | Time | Connection | Command |
|---|---|---|---|
| 1 | 14.64 ms | cache | CONNECT redis.internal 6379 5 <null> 5 5 |
| 2 | 0.58 ms | cache | SELECT 0 |
| 3 | 0.26 ms | cache | MGET wJo3GJ9dRH:data > anonymous-media > id=7142,locale=en,domain=junior |
| 4 | 166.43 ms | cache | INFO Memory |
| 5 | 0.04 ms | cache | MULTI 2 |
| 6 | 0.19 ms | cache | SETEX wJo3GJ9dRH:data > anonymous-media > id=7142,locale=en,domain=junior 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:977;s:5:"title";s:15:"Bridges (Video)";s:4:"slug";s:13:"bridges-video";s:9:"mediaType";s:5:"video";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/977-6545f4930f90a729047448.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/977-6545f4930f90a729047448.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/977-6545f4930f90a729047448.webp";}s:19:"thumbnailBackground";s:7:"#00a751";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2022-09-14 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;s:5:"width";i:550;s:6:"height";i:309;s:11:"description";s:2246:"<p>The Romans and the Chinese understood this well. To control their vast empire and defend it, it takes <strong>roads, </strong>to be able to move quickly, and <strong>bridges, </strong>to overcome obstacles.</p> <p>A simple stone slab makes it possible to straddle a short distance, but the weight of the rock imposes significant <strong>compression </strong>and <strong>tension</strong> forces in the top and bottom of the slab, respectively.</p> <p>For a span of more than 2m, the architects of antiquity developed arch bridges.</p> <p>Their characteristic shape makes it possible to distribute the weight from the center to the banks, where the abutments are located.</p> <p>To build such a bridge, a temporary wooden structure, called a “falsework”, is positioned at the exact location of the vault. Perfectly cut stone blocks are mounted along the form and on one another. The <strong>keystone</strong> is placed last to ensure the cohesion of the whole and the wooden form can be removed.</p> <p>Arch bridges are very strong because the stone handles compressive forces well. Especially when the space around the vault is densely filled.</p> <p>Many of these ancient works are still in use today.</p> <p>To cross great distances, it is possible to use multiple arches, but the many piers of the bridge then constitute an obstacle to navigation.</p> <p>It was not until the invention and mastery of new materials that new bridge structures could be built.</p> <p>At the time of the Industrial Revolution, iron and cast iron bridges appeared.</p> <p>But, these materials are too expensive on their own.</p> <p>With steel and concrete, civil engineers of the 19th and 20th centuries made major advances:</p> <p>Concrete piers are very resistant to compression.</p> <p>Steel cables are resistant to tension.</p> <p>It is thus possible to combine the advantages of these two materials by making reinforced concrete.</p> <p>With metal reinforcement it is now possible to make structures lighter and more robust.</p> <p>All of these materials technology innovations together with the power of computer-aided design make it possible to simulate and then build impressive structures.</p>";s:11:"suggestions";a:6:{i:0;a:9:{s:2:"id";i:687;s:5:"title";s:29:"Quebec Bridge (second bridge)";s:4:"slug";s:27:"quebec-bridge-second-bridge";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/687-6545f408cb2a2266555232.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/687-6545f408cb2a2266555232.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/687-6545f408cb2a2266555232.webp";}s:19:"thumbnailBackground";s:7:"#ee1b2e";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:194:"<ul> <li>Summarize and simplify the main steps when creating a work of art.</li> <li>Discover an exceptional industrial heritage.</li> <li>Promote careers in civil engineering.</li> </ul>";}i:1;a:9:{s:2:"id";i:535;s:5:"title";s:27:"Quiz Geographic coordinates";s:4:"slug";s:27:"quiz-geographic-coordinates";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/535-6545f3a00ff99417963510.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/535-6545f3a00ff99417963510.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/535-6545f3a00ff99417963510.webp";}s:19:"thumbnailBackground";s:7:"#462f92";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:196:"<ul> <li>Understand the coordinate system that allows a person to locate a point on the surface of the Earth.</li> <li>Define the geographical terms</li> <li>Review its geography</li> </ul>";}i:2;a:9:{s:2:"id";i:688;s:5:"title";s:21:"Sydney Harbour Bridge";s:4:"slug";s:21:"sydney-harbour-bridge";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/688-6545f40965385430382541.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/688-6545f40965385430382541.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/688-6545f40965385430382541.webp";}s:19:"thumbnailBackground";s:7:"#00a751";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:194:"<ul> <li>Summarize and simplify the main steps when creating a work of art.</li> <li>Discover an exceptional industrial heritage.</li> <li>Promote careers in civil engineering.</li> </ul>";}i:3;a:9:{s:2:"id";i:974;s:5:"title";s:6:"Vaults";s:4:"slug";s:6:"vaults";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/974-6545f491ef544307643687.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/974-6545f491ef544307643687.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/974-6545f491ef544307643687.webp";}s:19:"thumbnailBackground";s:7:"#ec008d";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2022-04-11 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:154:"<ul> <li>To play with gravity.</li> <li>To understand a historical construction process.</li> <li>To discover different types of arches.</li> </ul>";}i:4;a:9:{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:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/915-6545f4764497b585662630.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/915-6545f4764497b585662630.webp";s:5:"title";s:156:"https://junior.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>";}i:5;a:9:{s:2:"id";i:381;s:5:"title";s:16:"Steam locomotive";s:4:"slug";s:16:"steam-locomotive";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/381-6545f340c29a4584477591.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/381-6545f340c29a4584477591.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/381-6545f340c29a4584477591.webp";}s:19:"thumbnailBackground";s:7:"#00b7ad";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 illustrate a famous application of the steam engine.</li> <li>To explain the operation of the steam locomotive.</li> </ul>";}}s:4:"tags";a:5:{i:0;s:7:"bridges";i:1;s:8:"concrete";i:2;s:21:"industrial revolution";i:3;s:6:"romans";i:4;s:5:"steel";}s:12:"baseNodeName";s:10:"Technology";} |
| 7 | 0.11 ms | cache | SADD wJo3GJ9dRH:tagscache-service wJo3GJ9dRH:data > anonymous-media > id=7142,locale=en,domain=junior |
| 8 | 0.03 ms | cache | SADD wJo3GJ9dRH:tagscache-service-data > anonymous-media wJo3GJ9dRH:data > anonymous-media > id=7142,locale=en,domain=junior |
| 9 | 38.65 ms | cache | EXEC |
| 10 | 10.79 ms | cache | MGET wJo3GJ9dRH:data > locale-page-groups > locale=en |