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	<owl:Ontology rdf:about="https://www.wikidebrouillard.org/wiki/Special:ExportRDF/Ballon_percé">
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		<rdfs:label>Ballon percé</rdfs:label>
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		<property:Applications rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Une expérience plutôt cool pour impressionner tes proches !</property:Applications>
		<property:Avertissement rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Si ton ballon est trop gonflé... Il risque d'exploser dans tes mains...

Si ton ballon n'est pas piqué au bon endroit... Gare à toi !</property:Avertissement>
		<property:Complete rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Draft</property:Complete>
		<property:Description rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Comment percer un ballon de baudruche, avec un pic à brochette, sans qu'il n'éclate ?!... Grand défi des lois de la physique !</property:Description>
		<property:Difficulty rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Easy</property:Difficulty>
		<property:Disciplines_scientifiques rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Matter Sciences</property:Disciplines_scientifiques>
		<property:Disciplines_scientifiques rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Physics</property:Disciplines_scientifiques>
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		<property:Explanations rdf:datatype="http://www.w3.org/2001/XMLSchema#string">En temps normal, lorsqu'on perce un ballon, celui-ci éclate. Pourquoi ? Parce que le caoutchouc est tellement sous tension que le moindre petit trou entraîne une déchirure de la membrane. Dans notre expérience, le pic pénètre le ballon par 2 points précis : près du nœud et à l'autre extrémité, là où le caoutchouc est le moins tendu (d'où la couleur plus foncée du caoutchouc dans ces régions). Ainsi, le trou formé par le pic ne s'agrandit presque pas. Le liquide vaisselle (le savon) aide à améliorer la pénétration du pic dans la membrane du ballon sans trop la déchirer.</property:Explanations>
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		<property:Main_Picture rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Ballon_percé_53395039_667358657013635_580645892990697472_n.jpg</property:Main_Picture>
		<property:Observations rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Ton ballon, bien que transpercé de part en part, n'éclate pas.</property:Observations>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Il te suffit de souffler dans ton ballon et de le gonfler... un peu mais pas trop! Il faut que ton ballon ne soit pas sous tension.</property:Step_Content>
		<property:Step_Content rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Il ne te reste plus qu'à percer ton ballon !

Trempe ton pic à brochette dans le liquide vaisselle (facultatif) pour plus de facilité et plante le à l'extrémité de ton ballon (là où le caoutchouc est plus foncé) et fais le ressortir par le petit noeud du dessus !</property:Step_Content>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Gonfle ton ballon !</property:Step_Title>
		<property:Step_Title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Perce ton ballon</property:Step_Title>
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