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données",{"stage":46,"step":46,"id":194,"node":195,"title":196,"subtitle":197,"topic":198,"track":92},"the-rope-around-the-earth",21,"La corde autour de la Terre","Ajoute un mètre à une corde autour de la planète : elle se soulève de 16 cm partout","Géométrie",{"stage":46,"step":53,"id":200,"node":201,"title":202,"subtitle":203,"topic":204,"track":85},"the-invisible-gorilla",22,"Le gorille invisible","La moitié des gens ratent un gorille qui traverse un match de basket","Attention",{"stage":46,"step":60,"id":206,"node":207,"title":208,"subtitle":209,"topic":210,"track":134},"the-wagon-wheel-effect",23,"L'effet stroboscopique","Pourquoi les roues tournent à l'envers dans les vidéos","Vidéo",{"stage":46,"step":66,"id":212,"node":213,"title":214,"subtitle":215,"topic":198,"track":92},"the-missing-square",24,"Le carré manquant","Réarrange les mêmes pièces et un carré surgit de nulle part",{"stage":46,"step":73,"id":217,"node":218,"title":219,"subtitle":220,"topic":221,"track":120},"the-fencepost-puzzle",25,"L'énigme des poteaux de clôture","Une clôture de 10 mètres avec un poteau tous les mètres demande 11 poteaux","Programmation",{"stage":46,"step":80,"id":223,"node":224,"title":225,"subtitle":226,"topic":227,"track":92},"fold-paper-to-the-moon",26,"Plier du papier jusqu'à la Lune","Plie une feuille 42 fois et elle atteindrait la Lune","Croissance exponentielle",{"stage":46,"step":87,"id":229,"node":230,"title":231,"subtitle":232,"topic":233,"track":234},"how-planes-really-fly",27,"Comment les avions volent vraiment","La célèbre explication du « chemin plus long par-dessus » est fausse","Aéronautique","Énergie, chaleur & 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traversent des murs qu'elles ne peuvent pas franchir, et la mémoire de ton téléphone en dépend","Physique quantique","Quantique & relativité",{"stage":53,"step":80,"id":293,"node":294,"title":295,"subtitle":296,"topic":297,"track":234},"why-your-battery-wears-out",35,"Pourquoi ta batterie s'use","Chaleur, charge pleine et batterie à plat : voilà ce qui use le plus vite ton téléphone","Stockage d'énergie",{"stage":53,"step":87,"id":299,"node":300,"title":301,"subtitle":302,"topic":192,"track":120},"why-your-1-tb-drive-shows-931-gb",36,"Pourquoi ton disque de 1 TB affiche 931 GB","Les fabricants de disques et les ordinateurs ne comptent pas les octets de la même façon",[304,305,306,307,308,309],{"track":267,"count":53},{"track":78,"count":25},{"track":127,"count":25},{"track":291,"count":25},{"track":234,"count":25},{"track":120,"count":25},{"zone":60,"theme":311,"lessons":316,"topics":372},{"key":312,"name":313,"light":314,"dark":315},"quantum-foam","Quantum 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quand on l'étire","Génie civil","Ingénierie & machines",{"stage":60,"step":60,"id":344,"node":345,"title":346,"subtitle":347,"topic":43,"track":44},"spot-the-fake-coin-flips",41,"Démasque les faux lancers de pièce","Ceux qui inventent des lancers n'écrivent presque jamais de longues séries",{"stage":60,"step":66,"id":349,"node":350,"title":351,"subtitle":352,"topic":353,"track":51},"your-cards-last-digit-is-a-lie-detector",42,"Le dernier chiffre de ta carte est un détecteur de mensonges","Le dernier chiffre d'un numéro de carte vérifie tous les autres","Détection d'erreurs",{"stage":60,"step":73,"id":355,"node":356,"title":357,"subtitle":358,"topic":359,"track":165},"the-1890-census-ran-on-punch-cards",43,"Le recensement de 1890 tournait sur cartes perforées","Des trous dans du carton ont compté une nation, et IBM en est issu","Histoire de l'informatique",{"stage":60,"step":80,"id":361,"node":362,"title":363,"subtitle":364,"topic":365,"track":291},"the-double-slit-surprise",44,"La 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utilisateurs de téléphone ont déjà senti une vibration qui n'a jamais existé","Psychologie numérique",{"stage":66,"step":39,"id":396,"node":397,"title":398,"subtitle":399,"topic":400,"track":58},"why-we-only-see-one-side-of-the-moon",47,"Pourquoi on ne voit qu'une face de la Lune","La Lune tourne sur elle-même exactement une fois par orbite","Astronomie",{"stage":66,"step":46,"id":402,"node":403,"title":404,"subtitle":405,"topic":146,"track":92},"the-pigeonhole-trick",48,"L'astuce des tiroirs","Trop de pigeons pour les trous, et un doublon caché est garanti",{"stage":66,"step":53,"id":407,"node":408,"title":409,"subtitle":410,"topic":411,"track":78},"incognito-isnt-invisible",49,"Incognito ne veut pas dire invisible","Le mode privé cache ton historique à ton téléphone, pas à Internet","Vie privée en ligne",{"stage":66,"step":60,"id":413,"node":414,"title":415,"subtitle":416,"topic":417,"track":127},"the-qr-sticker-scam",50,"L'arnaque à l'autocollant QR","Un faux code collé sur le parcmètre envoie ta carte à un voleur","Sécurité en ligne",{"stage":66,"step":66,"id":419,"node":420,"title":421,"subtitle":422,"topic":423,"track":267},"change-one-letter-change-everything",51,"Change une lettre, tout change","Un hachage est une empreinte qui bascule entièrement au moindre changement","Hachage cryptographique",{"stage":66,"step":73,"id":425,"node":426,"title":427,"subtitle":428,"topic":429,"track":120},"everything-is-binary",52,"Tout est binaire","Chansons, photos et cette phrase ne sont que de l'allumé et de l'éteint","Binaire",{"stage":66,"step":80,"id":431,"node":432,"title":433,"subtitle":434,"topic":435,"track":291},"atoms-are-mostly-empty",53,"Les atomes sont presque vides","Si un atome était un stade, le noyau serait une bille","Physique atomique",{"stage":66,"step":87,"id":437,"node":438,"title":439,"subtitle":440,"topic":441,"track":234},"your-fridge-doesnt-make-cold",54,"Ton frigo ne fabrique pas de froid","Il pompe la chaleur hors de la boîte et la rejette 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vérité",{"stage":73,"step":46,"id":471,"node":472,"title":473,"subtitle":474,"topic":335,"track":37},"sorting-race",57,"Course de tri","La bonne méthode bat un ordinateur plus rapide",{"stage":73,"step":53,"id":476,"node":477,"title":478,"subtitle":479,"topic":480,"track":323},"light-that-bends-around-corners",58,"La lumière qui prend les virages","On peut piéger la lumière dans un fil de verre","Fibre optique",{"stage":73,"step":60,"id":482,"node":483,"title":484,"subtitle":485,"topic":486,"track":323},"the-undersea-internet",59,"L'internet sous-marin","Presque toutes les données entre continents voyagent par des câbles au fond de l'océan","Infrastructure d'Internet",{"stage":73,"step":66,"id":488,"node":489,"title":490,"subtitle":491,"topic":492,"track":342},"crumple-zones",60,"Les zones de déformation","Les voitures protègent leurs passagers en s'écrasant lentement","Sécurité automobile",{"stage":73,"step":73,"id":494,"node":495,"title":496,"subtitle":497,"topic":43,"track":44},"the-gamblers-fallacy",61,"L'erreur du joueur","Après cinq faces, la pièce n'a toujours pas de mémoire",{"stage":73,"step":80,"id":499,"node":500,"title":501,"subtitle":502,"topic":503,"track":51},"barcodes",62,"Les codes-barres","Les rayures noires et blanches ne sont que des nombres déguisés","Codage des données",{"stage":73,"step":87,"id":505,"node":506,"title":507,"subtitle":508,"topic":509,"track":165},"the-first-website-is-still-online",63,"Le premier site web est toujours en ligne","Tu peux encore visiter la page que Tim Berners-Lee a publiée en 1991","Histoire du Web",[511,512,513,514,515,516,517,518],{"track":323,"count":39},{"track":120,"count":25},{"track":134,"count":25},{"track":37,"count":25},{"track":342,"count":25},{"track":44,"count":25},{"track":51,"count":25},{"track":165,"count":25},{"zone":80,"theme":520,"lessons":525,"topics":578},{"key":521,"name":522,"light":523,"dark":524},"pixel-drift","Pixel Drift","#e6127f","#f253a4",[526,532,538,544,550,555,561,566,572],{"stage":80,"step":25,"id":527,"node":528,"title":529,"subtitle":530,"topic":531,"track":323},"finding-a-route",64,"Trouver son chemin","Les paquets traversent la planète sans que personne ne connaisse toute la carte","Réseaux informatiques",{"stage":80,"step":39,"id":533,"node":534,"title":535,"subtitle":536,"topic":537,"track":71},"youve-been-training-ai-for-free",65,"Tu entraînes l'IA gratuitement","Ces feux et passages piétons des CAPTCHA ont appris aux machines à voir","Annotation de données",{"stage":80,"step":46,"id":539,"node":540,"title":541,"subtitle":542,"topic":543,"track":85},"faces-everywhere",66,"Des visages partout","Ton cerveau est si réglé sur les visages qu'il en trouve dans les prises et les toasts","Perception des formes",{"stage":80,"step":53,"id":545,"node":546,"title":547,"subtitle":548,"topic":549,"track":58},"sixteen-sunrises-a-day",67,"Seize levers de soleil par jour","La station spatiale fait le tour de la Terre toutes les 90 minutes","Vol spatial",{"stage":80,"step":60,"id":551,"node":552,"title":553,"subtitle":554,"topic":146,"track":92},"the-party-puzzle",68,"L'énigme de la fête","Dans toute fête à six, trois sont tous amis ou tous inconnus",{"stage":80,"step":66,"id":556,"node":557,"title":558,"subtitle":559,"topic":560,"track":78},"half-the-internet-is-robots",69,"La moitié d'Internet, ce sont des robots","Près de la moitié du trafic web n'est pas humain","Trafic Internet",{"stage":80,"step":73,"id":562,"node":563,"title":564,"subtitle":565,"topic":140,"track":127},"would-you-plug-it-in",70,"Tu la brancherais ?","Près de la moitié des clés USB abandonnées ont été branchées",{"stage":80,"step":80,"id":567,"node":568,"title":569,"subtitle":570,"topic":571,"track":234},"the-sonic-boom",71,"Le bang supersonique","Dépasse ton propre son et il s'entasse en onde de choc","Acoustique",{"stage":80,"step":87,"id":573,"node":574,"title":575,"subtitle":576,"topic":577,"track":134},"the-missing-yellow",72,"Le jaune manquant","Ton écran affiche du jaune sans une seule lumière jaune","Science des 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fiables",{"stage":87,"step":46,"id":608,"node":609,"title":610,"subtitle":611,"topic":612,"track":134},"why-weather-presenters-never-wear-green",75,"Pourquoi les présentateurs météo ne portent jamais de vert","Une seule couleur peut être remplacée par un monde entier","Effets visuels",{"stage":87,"step":53,"id":614,"node":615,"title":616,"subtitle":617,"topic":618,"track":37},"the-tower-of-hanoi",76,"La tour de Hanoï","Déplacer 64 disques prendrait plus de temps que l'univers n'en a vécu","Récursivité",{"stage":87,"step":60,"id":620,"node":621,"title":622,"subtitle":623,"topic":624,"track":342},"otis-cut-the-rope",77,"Otis a coupé la corde","Les ascenseurs sont devenus sûrs quand un inventeur a coupé son propre câble en public","Ingénierie de la sécurité",{"stage":87,"step":66,"id":626,"node":627,"title":628,"subtitle":629,"topic":36,"track":37},"the-bridges-of-k-nigsberg",78,"Les ponts de Königsberg","Une énigme de promenade du dimanche a inventé toute une branche des maths",{"stage":87,"step":73,"id":631,"node":632,"title":633,"subtitle":634,"topic":43,"track":44},"the-sticker-album-problem",79,"Le problème de l'album de vignettes","Trouver les dernières vignettes prend plus de temps que tout le reste réuni",{"stage":87,"step":80,"id":636,"node":637,"title":638,"subtitle":639,"topic":640,"track":51},"the-phantom-singer",80,"La chanteuse fantôme","Deux enceintes peuvent placer une voix là où il n'y a aucune enceinte","Ingénierie audio",{"stage":87,"step":87,"id":642,"node":643,"title":644,"subtitle":645,"topic":646,"track":165},"the-internets-first-word-was-lo",81,"Le premier mot d'Internet fut « LO »","Le premier message a planté après deux lettres","Histoire 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visuelles",{"stage":111,"step":46,"id":676,"node":677,"title":678,"subtitle":679,"topic":680,"track":58},"the-country-that-skipped-a-day",84,"Le pays qui a sauté un jour","Les Samoa sont passées directement du 29 au 31 décembre 2011","Mesure du temps",{"stage":111,"step":53,"id":682,"node":683,"title":684,"subtitle":685,"topic":686,"track":92},"0-999-1",85,"0.999… = 1","Les neuf sans fin valent exactement un, pas « presque un »","Nombres",{"stage":111,"step":60,"id":688,"node":689,"title":690,"subtitle":691,"topic":692,"track":78},"megabits-not-megabytes",86,"Des mégabits, pas des mégaoctets","Pourquoi ta connexion à « 100 » télécharge à environ 12","Débit internet",{"stage":111,"step":66,"id":694,"node":695,"title":696,"subtitle":697,"topic":698,"track":127},"everyones-password-is-123456",87,"Le mot de passe de tout le monde, c'est 123456","Les mots de passe les plus courants tombent en moins d'une seconde","Sécurité des mots de passe",{"stage":111,"step":73,"id":700,"node":701,"title":702,"subtitle":703,"topic":704,"track":234},"measure-light-speed-with-chocolate",88,"Mesure la vitesse de la lumière avec du chocolat","Ton micro-ondes peut mesurer la vitesse de la lumière","Électromagnétisme",{"stage":111,"step":80,"id":706,"node":707,"title":708,"subtitle":709,"topic":710,"track":342},"the-arch",89,"L'arche","Des pierres libres tiennent 2 000 ans en se poussant les unes les autres","Conception des structures",{"stage":111,"step":87,"id":712,"node":713,"title":714,"subtitle":715,"topic":716,"track":120},"your-computer-doesnt-multitask",90,"Ton ordinateur ne fait pas plusieurs choses à la fois","Il change de tâche si vite qu'il te trompe","Multitâche",[718,719,720,721,722,723,724,725,726],{"track":71,"count":25},{"track":85,"count":25},{"track":58,"count":25},{"track":92,"count":25},{"track":78,"count":25},{"track":127,"count":25},{"track":234,"count":25},{"track":342,"count":25},{"track":120,"count":25},{"zone":116,"theme":728,"lessons":733,"topics":785},{"key":729,"name":730,"light":731,"dark":732},"server-farm","Server Farm","#1e55e5","#4372ee",[734,740,745,750,756,762,768,773,779],{"stage":116,"step":25,"id":735,"node":736,"title":737,"subtitle":738,"topic":739,"track":134},"why-gloves-dont-work-on-phones",91,"Pourquoi les gants ne marchent pas sur les téléphones","Ton doigt modifie un champ électrique, et une saucisse aussi","Technologie des capteurs",{"stage":116,"step":39,"id":741,"node":742,"title":743,"subtitle":744,"topic":335,"track":37},"the-hand-on-the-wall-rule",92,"La règle de la main sur le mur","Garde une main sur le mur et tu sortiras de la plupart des labyrinthes",{"stage":116,"step":46,"id":746,"node":747,"title":748,"subtitle":749,"topic":198,"track":342},"why-three-legs-never-wobble",93,"Pourquoi trois pieds ne sont jamais bancals","Trois points épousent toujours une surface ; quatre, souvent pas",{"stage":116,"step":53,"id":751,"node":752,"title":753,"subtitle":754,"topic":755,"track":44},"when-the-average-lies",94,"Quand la moyenne ment","Un milliardaire entre dans un bar et, en moyenne, tout le monde devient riche","Statistiques",{"stage":116,"step":60,"id":757,"node":758,"title":759,"subtitle":760,"topic":761,"track":51},"the-doppler-effect",95,"L'effet Doppler","Le mouvement change la hauteur du son et la couleur de la lumière","Physique des ondes",{"stage":116,"step":66,"id":763,"node":764,"title":765,"subtitle":766,"topic":767,"track":85},"the-stroop-effect",96,"L'effet Stroop","Dire la couleur d'un mot est difficile quand ce mot nomme une autre couleur","Psychologie cognitive",{"stage":116,"step":73,"id":769,"node":770,"title":771,"subtitle":772,"topic":755,"track":44},"benfords-law",97,"La loi de Benford","Dans les données réelles, les nombres commencent par 1 six fois plus souvent que par 9",{"stage":116,"step":80,"id":774,"node":775,"title":776,"subtitle":777,"topic":778,"track":58},"a-day-on-venus-is-longer-than-its-year",98,"Sur Vénus, un jour dure plus qu'une année","Vénus tourne si lentement que l'année finit avant","Planétologie",{"stage":116,"step":87,"id":780,"node":781,"title":782,"subtitle":783,"topic":784,"track":92},"the-mysterious-6174",99,"Le mystérieux 6174","Tout nombre de quatre chiffres tombe sur le même nombre","Mathématiques 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inclinaison","Capteurs",{"stage":123,"step":73,"id":837,"node":838,"title":839,"subtitle":840,"topic":43,"track":44},"penneys-game",106,"Le jeu de Penney","Laisse-moi choisir en second et je gagnerai la plupart des courses à pile ou face",{"stage":123,"step":80,"id":842,"node":843,"title":844,"subtitle":845,"topic":571,"track":51},"why-you-hate-your-recorded-voice",107,"Pourquoi tu détestes ta voix enregistrée","D'habitude, tu t'entends à travers ton propre crâne",{"stage":123,"step":87,"id":847,"node":848,"title":849,"subtitle":850,"topic":851,"track":85},"why-you-cant-tickle-yourself",108,"Pourquoi tu ne peux pas te chatouiller","Ton cerveau prédit ton propre contact et l'annule","Neurosciences",[853,854,855,856,857,858,859,860],{"track":51,"count":39},{"track":78,"count":25},{"track":234,"count":25},{"track":120,"count":25},{"track":134,"count":25},{"track":342,"count":25},{"track":44,"count":25},{"track":85,"count":25},{"zone":130,"theme":862,"lessons":867,"topics":918},{"key":863,"name":864,"light":865,"dark":866},"retro-terminal","Retro Terminal","#707b0f","#899713",[868,873,879,885,891,897,902,907,913],{"stage":130,"step":25,"id":869,"node":870,"title":871,"subtitle":872,"topic":778,"track":58},"saturn-would-float",109,"Saturne flotterait","La planète géante est moins dense que l'eau",{"stage":130,"step":39,"id":874,"node":875,"title":876,"subtitle":877,"topic":878,"track":92},"random-dots-draw-a-triangle",110,"Des points au hasard dessinent un triangle","Un jeu de hasard dessine une fractale parfaite","Fractales",{"stage":130,"step":46,"id":880,"node":881,"title":882,"subtitle":883,"topic":884,"track":78},"emoji-are-secret-sums",111,"Les emojis sont des sommes secrètes","Un emoji famille, ce sont plusieurs emojis collés","Encodage du texte",{"stage":130,"step":53,"id":886,"node":887,"title":888,"subtitle":889,"topic":890,"track":234},"count-the-thunder",112,"Compte le tonnerre","L'éclair te dit à quelle distance est l'orage","Ondes",{"stage":130,"step":60,"id":892,"node":893,"title":894,"subtitle":895,"topic":896,"track":342},"why-manholes-are-round",113,"Pourquoi les plaques d'égout sont rondes","Une plaque ronde ne peut jamais tomber dans son propre trou","Conception technique",{"stage":130,"step":66,"id":898,"node":899,"title":900,"subtitle":901,"topic":198,"track":342},"the-drill-that-makes-square-holes",114,"La perceuse qui fait des trous carrés","Un triangle arrondi peut percer un trou presque carré",{"stage":130,"step":73,"id":903,"node":904,"title":905,"subtitle":906,"topic":43,"track":44},"why-casinos-always-win",115,"Pourquoi le casino gagne toujours","Avec assez de mises, un petit avantage devient une 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mobile",{"stage":137,"step":60,"id":956,"node":957,"title":958,"subtitle":959,"topic":960,"track":78},"why-tweets-were-140",122,"Pourquoi les tweets faisaient 140","Twitter gardait 20 caractères de chaque SMS pour ton nom","Réseaux sociaux",{"stage":137,"step":66,"id":962,"node":963,"title":964,"subtitle":965,"topic":966,"track":71},"the-word-guessing-machine",123,"La machine à deviner les mots","Les chatbots écrivent en prédisant le mot suivant, encore et encore","Modèles de langage",{"stage":137,"step":73,"id":968,"node":969,"title":970,"subtitle":971,"topic":972,"track":234},"why-the-sky-is-blue",124,"Pourquoi le ciel est bleu","L'air diffuse la lumière bleue bien plus que la rouge, et les couchers de soleil sont les restes","Optique",{"stage":137,"step":80,"id":974,"node":975,"title":976,"subtitle":977,"topic":978,"track":342},"gears",125,"Les engrenages","Échanger de la vitesse contre de la force : c'est ainsi que les vélos grimpent les côtes","Mécanique",{"stage":137,"step":87,"id":980,"node":981,"title":982,"subtitle":983,"topic":755,"track":44},"the-bell-curve-machine",126,"La machine à courbe en cloche","Les billes qui rebondissent s'entassent toujours selon la même forme",[985,986,987,988,989,990,991,992],{"track":78,"count":39},{"track":85,"count":25},{"track":58,"count":25},{"track":92,"count":25},{"track":71,"count":25},{"track":234,"count":25},{"track":342,"count":25},{"track":44,"count":25},{"zone":143,"theme":994,"lessons":999,"topics":1052},{"key":995,"name":996,"light":997,"dark":998},"satellite-belt","Satellite Belt","#957d13","#ac9216",[1000,1006,1012,1017,1023,1028,1034,1040,1046],{"stage":143,"step":25,"id":1001,"node":1002,"title":1003,"subtitle":1004,"topic":1005,"track":85},"yanny-or-laurel",127,"Yanny ou Laurel ?","Un enregistrement, deux mots, et chacun n'entend pas le même","Perception auditive",{"stage":143,"step":39,"id":1007,"node":1008,"title":1009,"subtitle":1010,"topic":1011,"track":92},"the-simplest-unsolved-problem",128,"Le problème non résolu le plus simple","Pair, on divise par deux ; impair, on triple et on ajoute un. Arrive-t-on toujours à 1 ?","Problèmes non résolus",{"stage":143,"step":46,"id":1013,"node":1014,"title":1015,"subtitle":1016,"topic":646,"track":78},"the-first-youtube-video",129,"La première vidéo YouTube","Tout a commencé par dix-neuf secondes dans un zoo",{"stage":143,"step":53,"id":1018,"node":1019,"title":1020,"subtitle":1021,"topic":1022,"track":342},"the-train-that-copied-a-bird",130,"Le train qui a copié un oiseau","Le train à grande vitesse japonais a emprunté son nez au martin-pêcheur","Biomimétisme",{"stage":143,"step":60,"id":1024,"node":1025,"title":1026,"subtitle":1027,"topic":755,"track":44},"what-70-chance-of-rain-means",131,"Ce que veut dire « 70 % de risque de pluie »","Ce n'est ni 70 % de la journée ni 70 % de la ville",{"stage":143,"step":66,"id":1029,"node":1030,"title":1031,"subtitle":1032,"topic":1033,"track":85},"your-brain-hides-your-nose",132,"Ton cerveau cache ton nez","Ton nez est toujours dans ton champ de vision, et tu ne le vois jamais","Perception",{"stage":143,"step":73,"id":1035,"node":1036,"title":1037,"subtitle":1038,"topic":1039,"track":58},"the-atomic-clock",133,"L'horloge atomique","Les horloges les plus précises comptent les vibrations au cœur des atomes","Mesure de précision",{"stage":143,"step":80,"id":1041,"node":1042,"title":1043,"subtitle":1044,"topic":1045,"track":58},"how-gps-finds-you",134,"Comment le GPS te trouve","Ton téléphone écoute les horloges des satellites et fait le calcul","Navigation par satellite",{"stage":143,"step":87,"id":1047,"node":1048,"title":1049,"subtitle":1050,"topic":1051,"track":92},"sunflowers-count-in-fibonacci",135,"Les tournesols comptent en Fibonacci","Les spirales de graines vont par 34, 55 et 89","Les mathématiques dans la nature",[1053,1054,1055,1056,1057,1058],{"track":85,"count":39},{"track":92,"count":39},{"track":58,"count":39},{"track":78,"count":25},{"track":342,"count":25},{"track":44,"count":25},{"zone":149,"theme":1060,"lessons":1065,"topics":1117},{"key":1061,"name":1062,"light":1063,"dark":1064},"launch-pad","Launch Pad","#bf342c","#d84a43",[1066,1072,1078,1084,1089,1094,1099,1105,1111],{"stage":149,"step":25,"id":1067,"node":1068,"title":1069,"subtitle":1070,"topic":1071,"track":58},"you-cant-see-the-great-wall-from-space",136,"On ne voit pas la Grande Muraille depuis l'espace","La célèbre affirmation est un mythe","Idées reçues",{"stage":149,"step":39,"id":1073,"node":1074,"title":1075,"subtitle":1076,"topic":1077,"track":44},"the-chart-that-lies",137,"Le graphique qui ment","Coupe le bas d'un axe et un changement minuscule paraît énorme","Visualisation de données",{"stage":149,"step":46,"id":1079,"node":1080,"title":1081,"subtitle":1082,"topic":1083,"track":58},"measuring-the-earth-with-a-stick",138,"Mesurer la Terre avec un bâton","Il y a plus de 2 000 ans, un savant a mesuré la planète avec des ombres","Histoire des sciences",{"stage":149,"step":53,"id":1085,"node":1086,"title":1087,"subtitle":1088,"topic":1033,"track":85},"the-three-bowls",139,"Les trois bols","Une main dit chaud, l'autre dit froid, dans la même eau",{"stage":149,"step":60,"id":1090,"node":1091,"title":1092,"subtitle":1093,"topic":198,"track":92},"why-bees-build-hexagons",140,"Pourquoi les abeilles bâtissent des hexagones","Les hexagones stockent le plus de miel avec le moins de cire",{"stage":149,"step":66,"id":1095,"node":1096,"title":1097,"subtitle":1098,"topic":254,"track":78},"why-404",141,"Pourquoi 404 ?","Le fameux numéro de « Not Found » n'est pas une salle du CERN",{"stage":149,"step":73,"id":1100,"node":1101,"title":1102,"subtitle":1103,"topic":1104,"track":92},"the-m-bius-strip",142,"Le ruban de Möbius","Un anneau de papier qui n'a qu'une face et qu'un bord","Topologie",{"stage":149,"step":80,"id":1106,"node":1107,"title":1108,"subtitle":1109,"topic":1110,"track":127},"the-password-manager",143,"Le gestionnaire de mots de passe","Un coffre solide permet à chaque compte d'avoir son propre secret","Sécurité personnelle",{"stage":149,"step":87,"id":1112,"node":1113,"title":1114,"subtitle":1115,"topic":1116,"track":267},"the-only-perfect-cipher",144,"Le seul chiffre parfait","Un masque jetable est incassable si tu ne le réutilises jamais, jamais","Chiffrement",[1118,1119,1120,1121,1122,1123,1124],{"track":58,"count":39},{"track":92,"count":39},{"track":44,"count":25},{"track":85,"count":25},{"track":78,"count":25},{"track":127,"count":25},{"track":267,"count":25},{"zone":155,"theme":1126,"lessons":1131,"topics":1181},{"key":1127,"name":1128,"light":1129,"dark":1130},"cloud-citadel","Cloud Citadel","#0e7fa8","#129dd0",[1132,1137,1142,1147,1153,1159,1164,1170,1176],{"stage":155,"step":25,"id":1133,"node":1134,"title":1135,"subtitle":1136,"topic":227,"track":92},"rice-on-a-chessboard",145,"Du riz sur un échiquier","Double un grain à chaque case et tu ruines un royaume",{"stage":155,"step":39,"id":1138,"node":1139,"title":1140,"subtitle":1141,"topic":365,"track":291},"schr-dingers-cat-was-a-joke",146,"Le chat de Schrödinger était une blague","Le célèbre chat devait montrer à quel point l'idée semblait absurde",{"stage":155,"step":46,"id":1143,"node":1144,"title":1145,"subtitle":1146,"topic":227,"track":92},"the-lily-pad-riddle",147,"L'énigme des nénuphars","Si des nénuphars doublent chaque jour et couvrent l'étang au jour 30, quand était-il à moitié plein ?",{"stage":155,"step":53,"id":1148,"node":1149,"title":1150,"subtitle":1151,"topic":1152,"track":234},"the-cooktop-that-stays-cold",148,"La plaque qui reste froide","L'induction chauffe directement la poêle avec un champ magnétique variable","Génie électrique",{"stage":155,"step":60,"id":1154,"node":1155,"title":1156,"subtitle":1157,"topic":1158,"track":78},"how-google-ranked-the-web",149,"Comment Google a classé le Web","Une page compte quand des pages qui comptent pointent vers elle","Moteurs de recherche",{"stage":155,"step":66,"id":1160,"node":1161,"title":1162,"subtitle":1163,"topic":884,"track":120},"a-is-65",150,"A, c'est 65","Chaque lettre que tu tapes est en secret un nombre",{"stage":155,"step":73,"id":1165,"node":1166,"title":1167,"subtitle":1168,"topic":1169,"track":323},"the-internets-traffic-jam",151,"L'embouteillage d'Internet","Les réseaux ralentissent exprès pour éviter l'effondrement","Contrôle de congestion",{"stage":155,"step":80,"id":1171,"node":1172,"title":1173,"subtitle":1174,"topic":1175,"track":134},"why-mario-has-a-moustache",152,"Pourquoi Mario a une moustache","Dans un sprite de 16×16, une moustache était plus facile à dessiner qu'une bouche","Conception de jeux vidéo",{"stage":155,"step":87,"id":1177,"node":1178,"title":1179,"subtitle":1180,"topic":335,"track":37},"twice-the-data-four-times-the-wait",153,"Deux fois plus de données, quatre fois plus d'attente","Ce qui compte, c'est la vitesse à laquelle une méthode ralentit",[1182,1183,1184,1185,1186,1187,1188,1189],{"track":92,"count":39},{"track":291,"count":25},{"track":234,"count":25},{"track":78,"count":25},{"track":120,"count":25},{"track":323,"count":25},{"track":134,"count":25},{"track":37,"count":25},{"zone":161,"theme":103,"lessons":1191,"topics":1241},[1192,1198,1204,1209,1214,1220,1225,1230,1235],{"stage":161,"step":25,"id":1193,"node":1194,"title":1195,"subtitle":1196,"topic":1197,"track":92},"achilles-and-the-tortoise",154,"Achille et la tortue","Une infinité d'étapes peut tenir dans un temps fini","Séries infinies",{"stage":161,"step":39,"id":1199,"node":1200,"title":1201,"subtitle":1202,"topic":1203,"track":342},"suspension-bridges",155,"Les ponts suspendus","Les câbles changent d'énormes charges en une tension qu'ils supportent","Génie des ponts",{"stage":161,"step":46,"id":1205,"node":1206,"title":1207,"subtitle":1208,"topic":784,"track":92},"the-1089-trick",156,"Le tour du 1089","N'importe quel nombre à trois chiffres mène à la même réponse",{"stage":161,"step":53,"id":1210,"node":1211,"title":1212,"subtitle":1213,"topic":43,"track":44},"the-100-prisoners-riddle",157,"L'énigme des 100 prisonniers","Un plan astucieux change une mort quasi certaine en 31 % de chances",{"stage":161,"step":60,"id":1215,"node":1216,"title":1217,"subtitle":1218,"topic":1219,"track":51},"why-adverts-sound-louder",158,"Pourquoi les pubs sonnent plus fort","Deux sons au même volume peuvent sembler complètement différents","Psychoacoustique",{"stage":161,"step":66,"id":1221,"node":1222,"title":1223,"subtitle":1224,"topic":359,"track":165},"the-women-who-programmed-eniac",159,"Les femmes qui ont programmé l'ENIAC","Six femmes ont programmé le premier ordinateur électronique polyvalent",{"stage":161,"step":73,"id":1226,"node":1227,"title":1228,"subtitle":1229,"topic":966,"track":71},"same-question-different-answer",160,"Même question, réponse différente","Un réglage appelé température rend les chatbots créatifs ou prévisibles",{"stage":161,"step":80,"id":1231,"node":1232,"title":1233,"subtitle":1234,"topic":284,"track":127},"how-long-to-crack-it",161,"Combien de temps pour le craquer ?","Chaque caractère de plus multiplie le travail d'un attaquant",{"stage":161,"step":87,"id":1236,"node":1237,"title":1238,"subtitle":1239,"topic":1240,"track":127},"how-sites-store-your-password",162,"Comment les sites gardent ton mot de passe","Un bon site ne connaît jamais vraiment ton mot de passe","Cybersécurité",[1242,1243,1244,1245,1246,1247,1248],{"track":92,"count":39},{"track":127,"count":39},{"track":342,"count":25},{"track":44,"count":25},{"track":51,"count":25},{"track":165,"count":25},{"track":71,"count":25},{"zone":184,"theme":176,"lessons":1250,"topics":1302},[1251,1257,1262,1267,1273,1279,1284,1290,1296],{"stage":184,"step":25,"id":1252,"node":1253,"title":1254,"subtitle":1255,"topic":1256,"track":92},"the-missing-dollar",163,"Le dollar manquant","Une célèbre énigme d'argent marche en additionnant ce qu'il ne faut pas","Arithmétique",{"stage":184,"step":39,"id":1258,"node":1259,"title":1260,"subtitle":1261,"topic":1005,"track":85},"the-cocktail-party-effect",164,"L'effet cocktail party","Ton cerveau peut suivre une seule voix dans une salle bondée",{"stage":184,"step":46,"id":1263,"node":1264,"title":1265,"subtitle":1266,"topic":198,"track":92},"pythagoras-without-algebra",165,"Pythagore sans algèbre","Glisse quatre triangles et le théorème se démontre tout seul",{"stage":184,"step":53,"id":1268,"node":1269,"title":1270,"subtitle":1271,"topic":1272,"track":58},"escape-speed",166,"La vitesse de libération","Quitter la Terre pour de bon demande environ 11 kilomètres par seconde","Astrodynamique",{"stage":184,"step":60,"id":1274,"node":1275,"title":1276,"subtitle":1277,"topic":1278,"track":78},"error-418-im-a-teapot",167,"Erreur 418 : je suis une théière","Un poisson d'avril devenu partie des vrais standards d'Internet","Culture Internet",{"stage":184,"step":66,"id":1280,"node":1281,"title":1282,"subtitle":1283,"topic":1152,"track":234},"the-war-of-the-currents",168,"La guerre des courants","Edison et Tesla se sont battus pour la façon dont l'électricité arriverait chez toi",{"stage":184,"step":73,"id":1285,"node":1286,"title":1287,"subtitle":1288,"topic":1289,"track":127},"credential-stuffing",169,"Le bourrage d'identifiants","Un mot de passe fuité peut ouvrir plein de comptes sans rapport","Hygiène des mots de passe",{"stage":184,"step":80,"id":1291,"node":1292,"title":1293,"subtitle":1294,"topic":1295,"track":267},"the-prime-lock",170,"Le cadenas des nombres premiers","Multiplier est facile ; défaire la multiplication est le secret de la sécurité en ligne","Théorie des nombres",{"stage":184,"step":87,"id":1297,"node":1298,"title":1299,"subtitle":1300,"topic":1301,"track":291},"ghost-particles",171,"Particules fantômes","Des billions de neutrinos te traversent chaque seconde","Physique des particules",[1303,1304,1305,1306,1307,1308,1309,1310],{"track":92,"count":39},{"track":85,"count":25},{"track":58,"count":25},{"track":78,"count":25},{"track":234,"count":25},{"track":127,"count":25},{"track":267,"count":25},{"track":291,"count":25},{"zone":189,"theme":243,"lessons":1312,"topics":1364},[1313,1319,1325,1331,1337,1343,1349,1354,1359],{"stage":189,"step":25,"id":1314,"node":1315,"title":1316,"subtitle":1317,"topic":1318,"track":92},"the-friendship-paradox",172,"Le paradoxe de l'amitié","Tes amis ont sans doute plus d'amis que toi","Mathématiques des réseaux",{"stage":189,"step":39,"id":1320,"node":1321,"title":1322,"subtitle":1323,"topic":1324,"track":234},"braking-into-the-battery",173,"Freiner pour recharger","Les voitures électriques se rechargent un peu à chaque ralentissement","Véhicules électriques",{"stage":189,"step":46,"id":1326,"node":1327,"title":1328,"subtitle":1329,"topic":1330,"track":92},"winning-at-rock-paper-scissors",174,"Gagner à pierre-feuille-ciseaux","Les humains sont nuls pour être aléatoires, et une machine peut en profiter","Théorie des jeux",{"stage":189,"step":53,"id":1332,"node":1333,"title":1334,"subtitle":1335,"topic":1336,"track":120},"the-vote-from-outer-space",175,"Le vote venu de l'espace","Un rayon cosmique a peut-être ajouté 4 096 voix à une élection belge","Informatique binaire",{"stage":189,"step":60,"id":1338,"node":1339,"title":1340,"subtitle":1341,"topic":1342,"track":323},"fast-internet-slow-pages",176,"Internet rapide, pages lentes","La bande passante n'est pas la vitesse : les allers-retours s'additionnent","Performances réseau",{"stage":189,"step":66,"id":1344,"node":1345,"title":1346,"subtitle":1347,"topic":1348,"track":134},"why-characters-fall-through-walls",177,"Pourquoi les personnages traversent les murs","Les jeux cherchent les collisions par instantanés, et ce qui va vite se faufile entre eux","Physique des jeux",{"stage":189,"step":73,"id":1350,"node":1351,"title":1352,"subtitle":1353,"topic":266,"track":267},"the-enigma-machine",178,"La machine Enigma","158 trillions de réglages, changés chaque jour",{"stage":189,"step":80,"id":1355,"node":1356,"title":1357,"subtitle":1358,"topic":273,"track":267},"breaking-enigma",179,"Casser Enigma","Elle est tombée par des habitudes, des suppositions et une salle pleine de machines",{"stage":189,"step":87,"id":1360,"node":1361,"title":1362,"subtitle":1363,"topic":335,"track":37},"greedy-change",180,"La monnaie gloutonne","Toujours rendre la plus grosse pièce marche souvent, jusqu'au jour où ça ne marche plus",[1365,1366,1367,1368,1369,1370,1371],{"track":92,"count":39},{"track":267,"count":39},{"track":234,"count":25},{"track":120,"count":25},{"track":323,"count":25},{"track":134,"count":25},{"track":37,"count":25}]