GET https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/en/media/381-steam-locomotive

Commands

10 Queries
24.26 ms Query time
0 Failed Queries
# Time Connection Command
1 0.83 ms cache CONNECT redis.internal 6379 5 <null> 5 5
2 0.65 ms cache SELECT 0
3 18.58 ms cache MGET wJo3GJ9dRH:data > anonymous-media > id=2586,locale=en,domain=junior
4 0.63 ms cache INFO Memory
5 0.01 ms cache MULTI 2
6 0.05 ms cache SETEX wJo3GJ9dRH:data > anonymous-media > id=2586,locale=en,domain=junior 2678399 �գAk_Oa:2:{i:0;s:13:"cache-service";i:1;s:36:"cache-service-data > anonymous-media";}a:15:{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:5:"width";i:550;s:6:"height";i:440;s:11:"description";s:1349:"<p>A steam engine converts thermal energy (heat) into mechanical energy (work) using the following process:&nbsp;</p> <p>&rArr; Burning coal in a furnace (combustion).<br /> &rArr; Recover heat to heat water and turn it into steam.<br /> &rArr; Heat and confine the steam produced to obtain high pressure steam (live steam).<br /> &rArr; Use pressure generated to push a piston within a cylinder.<br /> &rArr; Transforming translational movement of the piston into a rotational movement by a crank system.<br /> &rArr; expel combustion gases and the expanded vapor.</p> <p>The first steam locomotives appeared in the early 1800s after the invention of the steam engine. Efficiency was greatly improved with the principle of the dual action machine in which a sliding valve distributes the pressure on the right and left so that the piston is driven in both directions.<br /> <br /> The piston is connected to an axle (driving axle) and tie rods are used to drive other axles. The largest steam locomotives had five driving axels (10 wheels for the &quot;Santa Fe&quot; type locomotives).<br /> <br /> The low yield of steam explains their disappearance in the 1960s in favor of diesel and electric motors. However, their use for 150 years has accompanied one of the most profound changes in our society: the industrial revolution.</p>";s:11:"suggestions";a:6:{i:0;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:1;a:9:{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;}i:2;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:3;a:9:{s:2:"id";i:467;s:5:"title";s:12:"Bridges Quiz";s:4:"slug";s:12:"bridges-quiz";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/467-6545f3730b62b709019704.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/467-6545f3730b62b709019704.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/467-6545f3730b62b709019704.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:71:"<ul> <li>To test knowledge of different types of bridges.</li> </ul>";}i:4;a:9:{s:2:"id";i:633;s:5:"title";s:7:"Bridges";s:4:"slug";s:7:"bridges";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/633-6545f3e41bd10099372647.webp";s:10:"suggestion";s:161:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/633-6545f3e41bd10099372647.webp";s:5:"title";s:156:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/633-6545f3e41bd10099372647.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:294:"<ul> <li>Distinguish&nbsp;the main&nbsp;families of&nbsp;bridges.&nbsp;</li> <li>Simulate intuitively (strength of&nbsp;the&nbsp;characters) the main forces acting on the bridge.&nbsp;</li> <li>Identify the parts of the bridge undergoing tensile forces and compressive forces.</li> </ul>";}i:5;a:9:{s:2:"id";i:11;s:5:"title";s:12:"The airplane";s:4:"slug";s:12:"the-airplane";s:9:"mediaType";s:10:"simulation";s:14:"thumbnailSizes";a:3:{s:9:"node_pack";s:159:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_node_pack/uploads/media/thumbnails/11-6545f2a6608f6613222880.webp";s:10:"suggestion";s:160:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_suggestion/uploads/media/thumbnails/11-6545f2a6608f6613222880.webp";s:5:"title";s:155:"https://junior.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/media-cache/media_thumbnail_title/uploads/media/thumbnails/11-6545f2a6608f6613222880.webp";}s:19:"thumbnailBackground";s:7:"#b51d8e";s:11:"publishedAt";O:17:"DateTimeImmutable":3:{s:4:"date";s:26:"2017-05-11 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:166:"<ul> <li>To show the laminar airflow around an aircraft wing.</li> <li>To show that a net force of zero results in a rectilinear and uniform movement.</li> </ul>";}}s:4:"tags";a:11:{i:0;s:6:"energy";i:1;s:6:"engine";i:2;s:21:"industrial revolution";i:3;s:8:"infrared";i:4;s:10:"locomotive";i:5;s:5:"motor";i:6;s:6:"piston";i:7;s:5:"steam";i:8;s:5:"train";i:9;s:11:"walschaerts";i:10;s:4:"watt";}s:12:"baseNodeName";s:10:"Technology";}
7 0.02 ms cache SADD wJo3GJ9dRH:tagscache-service wJo3GJ9dRH:data > anonymous-media > id=2586,locale=en,domain=junior
8 0.01 ms cache SADD wJo3GJ9dRH:tagscache-service-data > anonymous-media wJo3GJ9dRH:data > anonymous-media > id=2586,locale=en,domain=junior
9 1.33 ms cache EXEC
10 2.14 ms cache MGET wJo3GJ9dRH:data > locale-page-groups > locale=en