{"product_id":"kit-tornade-a-monter-simulateur-de-tourbillon-motorise-tornade","title":"DIY tornado kit, motorized whirlpool simulator — TORNADO","description":"\u003cstyle\u003e\n.aa{font-family:Georgia,'Times New Roman',serif;color:#1A1A1A;line-height:1.7;font-size:15px;max-width:760px;margin:0 auto}\n.aa p{margin:0 0 1rem}\n.aa a{color:#185FA5;text-decoration:underline}\n.aa .aa-title{display:inline-block;border-bottom:2px solid #FAC775;padding-bottom:4px;font-size:16px;font-weight:600;margin:1.75rem 0 .5rem;letter-spacing:.3px;color:#1A1A1A}\n.aa .aa-badge{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:3px 10px;border-radius:20px;margin:0 4px 4px 0;vertical-align:middle;font-family:Georgia,serif}\n.aa .aa-badge-or{background:#FAC775;color:#1A1A1A}\n.aa .aa-badge-brun{background:#5C3A1E;color:#FFF9E8}\n.aa .aa-badge-noir{background:#1A1A1A;color:#FAC775}\n.aa .aa-badge-bleu{background:#185FA5;color:#fff}\n.aa 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summary::after{content:\"\\2212\"}\n.aa .aa-a{font-size:13px;color:#3a3a3a;margin-top:.5rem}\n.aa .aa-a p{margin:0 0 .5rem}\n@media(max-width:600px){.aa .aa-vars,.aa .aa-ben{grid-template-columns:1fr}}\n.aa-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:1rem 0}\n.aa-links a.aa-link{display:block;background:#fff;border:1px solid #ebe5d6;border-left:3px solid #FAC775;border-radius:6px;padding:.8rem 1rem;text-decoration:none;color:#1A1A1A}\n.aa-link .lt{display:block;font-weight:700;font-size:14px}.aa-link .ld{display:block;font-size:12px;color:#555}\n@media(max-width:600px){.aa-links{grid-template-columns:1fr}}\n\u003c\/style\u003e\n\u003cdiv class=\"aa\"\u003e\n\n\n\u003cp\u003e\u003cspan class=\"aa-badge aa-badge-noir\"\u003eAssembly kit\u003c\/span\u003e \u003cspan class=\"aa-badge aa-badge-bleu\"\u003eAges 8+\u003c\/span\u003e How is a tornado born? Rather than explaining it on a chalkboard, the \u003cstrong\u003eTORNADO kit\u003c\/strong\u003e makes one appear right on your living room table. This \u003cstrong\u003emotorized vortex simulator\u003c\/strong\u003e is self-assembled: a \u003cstrong\u003egray conical base\u003c\/strong\u003e houses a small motor powered by two AA batteries, which sets the water in a transparent bottle placed on top into rotation. In a few moments, a \u003cstrong\u003evortex\u003c\/strong\u003e forms in the center, like an air funnel plunging into the liquid. Add a few \u003cstrong\u003eglitter flakes\u003c\/strong\u003e or a drop of \u003cstrong\u003efood coloring\u003c\/strong\u003e and the whirlpool becomes spectacular. The kit includes the base, the motor with its wires, the propeller and parts to assemble, a screwdriver, and an \u003cstrong\u003eillustrated instruction manual\u003c\/strong\u003e. Two versions are available: \u003cstrong\u003eWithout bottle\u003c\/strong\u003e, to use your own 50 cl plastic mineral water bottle, or \u003cstrong\u003eWith bottle\u003c\/strong\u003e, supplied with its own 19 cm transparent bottle. A \u003cstrong\u003escientific experiment to do at home\u003c\/strong\u003e, to be shared with the family from age 8, combining DIY, mechanics, and fluid physics.\u003c\/p\u003e\n\n\n\u003cdiv class=\"aa-vars\"\u003e\n\n  \u003cdiv class=\"aa-var\"\u003e\n\n\u003cdiv class=\"aa-var-v dark\" style=\"background:#3A3A3A\"\u003eWITHOUT BOTTLE\u003c\/div\u003e\n\n\u003cdiv class=\"aa-var-i\"\u003e\n\n\u003cspan class=\"aa-var-n\"\u003eWithout bottle\u003c\/span\u003e\u003cspan class=\"aa-var-d\"\u003eThe complete kit, to be used with your own 50 cl plastic mineral water bottle\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-var\"\u003e\n\n\u003cdiv class=\"aa-var-v light\" style=\"background:#F5F0E8\"\u003eWITH BOTTLE\u003c\/div\u003e\n\n\u003cdiv class=\"aa-var-i\"\u003e\n\n\u003cspan class=\"aa-var-n\"\u003eWith bottle\u003c\/span\u003e\u003cspan class=\"aa-var-d\"\u003eThe complete kit and its transparent bottle, 6.2 cm in diameter and 19 cm high\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eHighlights of the tornado kit\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-ben\"\u003e\n\n  \u003cdiv class=\"aa-b\"\u003e\n\n\u003cspan class=\"ic\"\u003e✦\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eA real motorized whirlpool\u003c\/span\u003e\u003cspan class=\"ds\"\u003eThe motor housed in the base puts the water into rotation: the vortex forms and is maintained as long as it spins.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-b\"\u003e\n\n\u003cspan class=\"ic\"\u003e◆\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eAssembled by your own hands\u003c\/span\u003e\u003cspan class=\"ds\"\u003eBase, motor, propeller, and parts assemble using the included screwdriver by following the illustrated instructions.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-b\"\u003e\n\n\u003cspan class=\"ic\"\u003e➤\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003ePhysics made visible\u003c\/span\u003e\u003cspan class=\"ds\"\u003eRotation, air funnel, particle movement: a weather phenomenon to observe up close.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-b\"\u003e\n\n\u003cspan class=\"ic\"\u003e★\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eGlitter and colors\u003c\/span\u003e\u003cspan class=\"ds\"\u003eA pinch of glitter or a drop of food coloring is enough to reveal the spiral of the current.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-b\"\u003e\n\n\u003cspan class=\"ic\"\u003e❖\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eTwo versions to choose from\u003c\/span\u003e\u003cspan class=\"ds\"\u003eWith the provided bottle, or without, to recycle a 50 cl mineral water bottle.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-b\"\u003e\n\n\u003cspan class=\"ic\"\u003e●\u003c\/span\u003e\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eCompact and CE-marked\u003c\/span\u003e\u003cspan class=\"ds\"\u003eA 11 cm diameter base, a 21.5 × 17 × 7 cm box, an educational toy for ages 8 and up.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eHow a vortex is born\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-mat\"\u003e\n\n\u003ch3\u003eThe tornado in a bottle: a lesson in fluid physics\u003c\/h3\u003e\n\n\u003cp\u003eA \u003cstrong\u003evortex\u003c\/strong\u003e is a rotary movement of a fluid around an axis. When water spins, it is pushed toward the walls of the bottle: the surface dips in the center and forms a \u003cstrong\u003efunnel\u003c\/strong\u003e, which becomes deeper as the rotation is sustained. It is the same principle that governs the whirlpool in a draining bathtub, the eddies in a river, or, on a completely different scale, the rotating air columns of \u003cstrong\u003etornadoes\u003c\/strong\u003e and waterspouts.\u003c\/p\u003e\n\n\u003cp\u003eThe kit allows these phenomena to be observed without risk and at eye level. The glitter, carried by the current, materializes the lines of movement: it rises, descends, and spirals around the axis. An excellent gateway to the concepts of \u003cstrong\u003ecentrifugal force\u003c\/strong\u003e, pressure, and meteorology, perfect for a \u003cstrong\u003ephysics experiment\u003c\/strong\u003e at home or in the classroom.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eA whirlpool on the table\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-des\"\u003e\n\n\u003cp class=\"t\"\u003eStormy skies, in pocket version\u003c\/p\u003e\n\n\u003cdiv class=\"x\"\u003e\n\n\u003cp\u003eTornadoes are as fascinating as they are impressive. We watch them on television, read stories about storm chasers, but we rarely see them up close. TORNADE reverses the scene: the phenomenon fits inside a \u003cstrong\u003ewater bottle\u003c\/strong\u003e, placed on a gray base with a conical design.\u003c\/p\u003e\n\n\u003cp\u003eThe most joyful moment comes when it is turned on. The water begins to spin, the surface dips, and then an \u003cstrong\u003eair funnel\u003c\/strong\u003e plunges toward the bottom. The glitter rises in a spiral and outlines the shape of the whirlpool. Children ask questions, adults look for answers: it is exactly what one expects from a \u003cstrong\u003escientific object\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eAnd because the kit is self-assembled, the satisfaction is twofold: you first understand how the machine works, then you observe what it produces.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eAssembly and startup\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-steps\"\u003e\n\n\u003ch4\u003eYour tornado in four steps\u003c\/h4\u003e\n\n  \u003cdiv class=\"aa-step\"\u003e\n\n\u003cspan class=\"aa-step-n\"\u003e1\u003c\/span\u003e\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003eAssemble:\u003c\/strong\u003e follow the illustrated instructions to install the motor, its wires, and the propeller in the conical base, screwing the parts together with the included screwdriver.\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-step\"\u003e\n\n\u003cspan class=\"aa-step-n\"\u003e2\u003c\/span\u003e\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003ePower:\u003c\/strong\u003e insert two 1.5 V AA batteries (not included) into the base compartment, observing the indicated polarity.\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-step\"\u003e\n\n\u003cspan class=\"aa-step-n\"\u003e3\u003c\/span\u003e\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003ePrepare the bottle:\u003c\/strong\u003e fill the provided bottle or your own 50 cl bottle with water, add glitter or food coloring, close, and install it.\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n  \u003cdiv class=\"aa-step\"\u003e\n\n\u003cspan class=\"aa-step-n\"\u003e4\u003c\/span\u003e\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003eObserve:\u003c\/strong\u003e turn the motor on: the water spins, the vortex deepens, and the glitter draws the spiral of your tornado.\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eWithout or with bottle\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-cmp\"\u003e\u003ctable\u003e\n\n\u003cthead\u003e\u003ctr\u003e\n\n\u003cth\u003eCriteria\u003c\/th\u003e\n\n\u003cth\u003eWithout bottle\u003c\/th\u003e\n\n\u003cth\u003eWith bottle\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMotor base and parts\u003c\/td\u003e\n\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"hl\"\u003e\n\n\u003ctd\u003eScrewdriver and manual\u003c\/td\u003e\n\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBottle\u003c\/td\u003e\n\n\u003ctd\u003eTo be provided: 50 cl plastic mineral water bottle\u003c\/td\u003e\n\n\u003ctd\u003eTransparent bottle provided, Ø 6.2 cm × 19 cm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"hl\"\u003e\n\n\u003ctd\u003eBatteries\u003c\/td\u003e\n\n\u003ctd\u003e2 x 1.5 V AA batteries not included\u003c\/td\u003e\n\n\u003ctd\u003e2 x 1.5 V AA batteries not included\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eIdeal for\u003c\/td\u003e\n\n\u003ctd\u003eRecycling an everyday bottle\u003c\/td\u003e\n\n\u003ctd\u003eStarting the experiment immediately\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eGood to know\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-info\"\u003e\u003cp\u003e\u003cstrong\u003eKit contents:\u003c\/strong\u003e conical motor base with battery compartment, small motor and wires, propeller and parts to assemble, screwdriver, and illustrated manual; the With bottle version adds a \u003cstrong\u003etransparent bottle\u003c\/strong\u003e. The \u003cstrong\u003etwo 1.5 V AA batteries are not included\u003c\/strong\u003e, nor are the glitter and food coloring seen in the promotional photos.\u003c\/p\u003e\u003c\/div\u003e\n\n\n\u003cdiv class=\"aa-tip\"\u003e\u003cp\u003e\u003cstrong\u003eObservation tip:\u003c\/strong\u003e \u003cstrong\u003efine, light glitter\u003c\/strong\u003e follows the current better than large confetti. A single drop of food coloring is enough: if too concentrated, the water obscures the funnel. Place the bottle in front of a window or lamp to make the glitter shine and better see the shape of the vortex.\u003c\/p\u003e\u003c\/div\u003e\n\n\n\u003cdiv class=\"aa-warn\"\u003e\u003cp\u003e\u003cstrong\u003eSafety:\u003c\/strong\u003e this kit contains \u003cstrong\u003esmall parts\u003c\/strong\u003e and is not suitable for children under 3 years old due to the risk of choking. It is recommended for \u003cstrong\u003eages 8+\u003c\/strong\u003e; adult presence is advised during assembly and handling of batteries. Carefully close the bottle before installing it and keep the base, which contains the motor and batteries, away from water. Remove the batteries if not in use for an extended period.\u003c\/p\u003e\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eTechnical specifications\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-sp\"\u003e\u003ctable\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eType\u003c\/td\u003e\n\n\u003ctd\u003eAssembly kit, motorized tornado simulator\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBase\u003c\/td\u003e\n\n\u003ctd\u003eConical, gray, with motor and battery compartment\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBase dimensions\u003c\/td\u003e\n\n\u003ctd\u003eØ 11 cm × 7 cm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBottle (With bottle version)\u003c\/td\u003e\n\n\u003ctd\u003eTransparent, Ø 6.2 cm × 19 cm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBottle (Without bottle version)\u003c\/td\u003e\n\n\u003ctd\u003e50 cl plastic mineral water bottle, to be provided\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\n\u003ctd\u003e2 x 1.5 V AA batteries (not included)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBox dimensions\u003c\/td\u003e\n\n\u003ctd\u003e21.5 × 17 × 7 cm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eIncluded tool\u003c\/td\u003e\n\n\u003ctd\u003eScrewdriver\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDocumentation\u003c\/td\u003e\n\n\u003ctd\u003eIllustrated assembly manual\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eRecommended age\u003c\/td\u003e\n\n\u003ctd\u003eAges 8+ (not recommended for under 3s: small parts)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\n\u003ctd\u003eCE Marking\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/table\u003e\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eA scientific gift idea\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-gift\"\u003e\n\n\u003ch3\u003eFor curious children and weather enthusiasts\u003c\/h3\u003e\n\n  \u003cp\u003eBirthday, Christmas, or just a desire to build something together on a Sunday: TORNADE is a \u003cstrong\u003escientific gift\u003c\/strong\u003e that is meant to be shared. It occupies the hands during assembly, the mind during observation, and leaves an object to display on a shelf or desk.\u003c\/p\u003e\n\n\u003cp\u003eTo extend the exploration, pair it with the \u003ca href=\"\/en\/products\/barometre-a-cristaux-globe-en-verre-storm-glass-aurore\"\u003eAURORE crystal barometer\u003c\/a\u003e, which reacts to the weather, or the \u003ca href=\"\/en\/products\/demonstrateur-de-force-centripete-rail-a-looping-de-bureau-cyclone\"\u003eCYCLONE centripetal force demonstrator\u003c\/a\u003e, the other side of rotation.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"aa-links\"\u003e\n\n\u003ca class=\"aa-link\" href=\"\/en\/collections\/physique-et-mouvement\"\u003e\u003cspan class=\"lt\"\u003ePhysics and motion\u003c\/span\u003e\u003cspan class=\"ld\"\u003ePendulums, gyroscopes, and demonstrators to see the laws of motion\u003c\/span\u003e\u003c\/a\u003e\n\u003ca class=\"aa-link\" href=\"\/en\/collections\/temps-et-meteo\"\u003e\u003cspan class=\"lt\"\u003eWeather and meteorology\u003c\/span\u003e\u003cspan class=\"ld\"\u003eBarometers, hourglasses, and objects that tell the weather\u003c\/span\u003e\u003c\/a\u003e\n\u003ca class=\"aa-link\" href=\"\/en\/products\/ferrofluide-magnetique-en-bouteille-decouvrez-la-science\"\u003e\u003cspan class=\"lt\"\u003eFerrofluid in a bottle\u003c\/span\u003e\u003cspan class=\"ld\"\u003eA magnetic liquid that takes shape under a magnet\u003c\/span\u003e\u003c\/a\u003e\n\u003ca class=\"aa-link\" href=\"\/en\/collections\/idees-cadeaux-anniversaire\"\u003e\u003cspan class=\"lt\"\u003eBirthday gift ideas\u003c\/span\u003e\u003cspan class=\"ld\"\u003eOur selection of unique gifts to give\u003c\/span\u003e\u003c\/a\u003e\n\n\u003c\/div\u003e\n\n\n\u003ch3 class=\"aa-title\"\u003eFrequently asked questions\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-faq\"\u003e\n\n\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eHow does the tornado-in-a-bottle kit work?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003eThe kit consists of a \u003cstrong\u003econical base\u003c\/strong\u003e that houses a small motor powered by two AA batteries. Once the kit is assembled, you place a water-filled bottle on the base. When turned on, the motor \u003cstrong\u003esets the water into rotation\u003c\/strong\u003e. As it spins, the water is pushed toward the walls of the bottle: the surface dips in the center and an \u003cstrong\u003eair funnel\u003c\/strong\u003e plunges to the bottom, exactly like in a natural whirlpool. Glitter or food coloring added to the water makes the movement more visible. The phenomenon lasts as long as the motor is running, leaving plenty of time to observe it and discuss it.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eWhat is the difference between the Without bottle and With bottle versions?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003eBoth versions contain the same kit: \u003cstrong\u003emotorized base\u003c\/strong\u003e, parts to assemble, screwdriver, and illustrated manual. The \u003cstrong\u003eWith bottle\u003c\/strong\u003e version adds a transparent bottle 6.2 cm in diameter and 19 cm high, to start the experiment as soon as the box is opened. The \u003cstrong\u003eWithout bottle\u003c\/strong\u003e version is designed to work with your own 50 cl plastic mineral water bottle: a simple way to give a second life to an everyday container. In both cases, two 1.5 V AA batteries must be provided.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eAre batteries included?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003eNo. The motor works with \u003cstrong\u003etwo 1.5 V AA batteries\u003c\/strong\u003e, which are \u003cstrong\u003enot included\u003c\/strong\u003e in the box. Remember to include them if giving the kit as a gift, so the experiment can begin as soon as assembly is complete. They go into the compartment integrated into the base, observing the correct polarity. If the kit is to remain unused for several weeks, remove the batteries: this will avoid any risk of leakage that could damage the compartment or the motor contacts. Rechargeable AA batteries can be a practical option for repeated sessions.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eAt what age can this scientific experiment be done?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003eThe recommended age, indicated on the box, is \u003cstrong\u003e8 years and older\u003c\/strong\u003e. The kit contains \u003cstrong\u003esmall parts\u003c\/strong\u003e and is not suitable for children under 3. Between 8 and 10 years old, adult presence is recommended during assembly, particularly for using the screwdriver, connecting the motor, and inserting the batteries. Afterward, the child can fill the bottle, choose their glitter, and launch the tornado independently. Curious teenagers and adults also enjoy it: it is a \u003cstrong\u003escientific experiment for children\u003c\/strong\u003e that remains fascinating at any age.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eWhat can be added to the water to better see the vortex?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003eThe two simplest additions are \u003cstrong\u003eglitter\u003c\/strong\u003e and \u003cstrong\u003efood coloring\u003c\/strong\u003e, not supplied with the kit. Glitter, driven by the current, shows the trajectory of the water: it spirals around the axis of the whirlpool and outlines its shape. Food coloring, used sparingly, gives depth to the water and makes the air funnel stand out. Prefer fine glitter, which follows movement better, and only one drop of food coloring to keep the water translucent. Changing the water between sessions allows you to vary the colors and compare the effects.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eIs the assembly difficult?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003eThe assembly is designed for \u003cstrong\u003ebeginners\u003c\/strong\u003e. The \u003cstrong\u003eillustrated manual\u003c\/strong\u003e details every step: installing the motor and its wires in the base, attaching the propeller and parts, and closing with the included \u003cstrong\u003escrewdriver\u003c\/strong\u003e. No other tools are necessary. Assembly is also the most educational part of the kit: by building the mechanism themselves, the child understands where the movement comes from before observing it in the bottle. Take the time to read the manual thoroughly before starting, and work on a clear table to avoid losing any small parts.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eIs TORNADE a good scientific gift idea?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003eYes, for a curious child as well as a weather enthusiast. TORNADE combines three pleasures: the \u003cstrong\u003eDIY\u003c\/strong\u003e aspect of the assembly, the \u003cstrong\u003esurprise\u003c\/strong\u003e of seeing the tornado form, and the \u003cstrong\u003ediscussion\u003c\/strong\u003e it triggers about natural phenomena. It is perfect for a birthday, Christmas, or a family activity afternoon. Just remember to include two AA batteries with the gift, and a small container of glitter for an immediate effect. To complete the set, our Physics and motion collection offers other objects that make the laws of physics visible and tangible.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\n\n\u003c\/div\u003e\n","brand":"Atelier Atypique","offers":[{"title":"Without a bottle","offer_id":54905645433155,"sku":"AA-TORNADE-SANS-BOUTEILLE","price":29.9,"currency_code":"EUR","in_stock":true},{"title":"With bottle","offer_id":54905645400387,"sku":"AA-TORNADE-AVEC-BOUTEILLE","price":34.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0231\/3365\/0991\/files\/S7604f28de1764f3ab91a88b366656fdf2_1.jpg?v=1791971723","url":"https:\/\/atelier-atypique.fr\/en\/products\/kit-tornade-a-monter-simulateur-de-tourbillon-motorise-tornade","provider":"Atelier Atypique","version":"1.0","type":"link"}