| − | |Main_Picture_annotation={"version":"3.5.0","objects":[{"type":"image","version":"3.5.0","originX":"left","originY":"top","left":0,"top":-0.03,"width":1310,"height":1011,"fill":"rgb(0,0,0)","stroke":null,"strokeWidth":0,"strokeDashArray":null,"strokeLineCap":"butt","strokeDashOffset":0,"strokeLineJoin":"miter","strokeMiterLimit":4,"scaleX":0.46,"scaleY":0.46,"angle":0,"flipX":false,"flipY":false,"opacity":1,"shadow":null,"visible":true,"clipTo":null,"backgroundColor":"","fillRule":"nonzero","paintFirst":"fill","globalCompositeOperation":"source-over","transformMatrix":null,"skewX":0,"skewY":0,"crossOrigin":"","cropX":0,"cropY":0,"src":"https://www.wikidebrouillard.org/images/b/b2/Pile_Eponge_pile2_petit_d_brouillards.png","filters":[]}],"height":463,"width":600}
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| − | |Description=L'idée est de fabriquer une pile avec des vis zinguées, des pièces de cuivre, de l'eau, et d'allumer une diode avec. La solution dans laquelle baigne les éponges peut être de l'eau salée, ou du vinaigre (au choix, testez ce que vous trouvez le plus efficace !)
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