{"product_id":"ferrofluide-en-flacon-a-suspendre-ou-porter-en-pendentif-magma","title":"Ferrofluid in a hanging vial or wearable pendant — MAGMA","description":"\u003cstyle\u003e .aa{font-family:Georgia,'Times New Roman',serif;color:#1A1A1A;line-height:1.7;font-size:15px;max-width:760px;margin:0 auto} .aa p{margin:0 0 1rem} .aa a{color:#185FA5;text-decoration:underline} .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} .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} .aa .aa-badge-brun{background:#5C3A1E;color:#FFF9E8} .aa .aa-badge-noir{background:#1A1A1A;color:#FAC775} .aa .aa-mat{background:#fff;border:1px solid #E0DCD3;border-radius:10px;padding:1.2rem 1.4rem;margin:1.5rem 0} .aa .aa-mat 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details.aa-q{border-bottom:1px solid #ebe5d6;padding:.85rem 0} .aa details.aa-q summary{font-size:14px;font-weight:700;list-style:none;padding-right:20px;position:relative;cursor:pointer} .aa details.aa-q summary::-webkit-details-marker{display:none} .aa details.aa-q summary::after{content:\"+\";position:absolute;right:0;top:0;color:#FAC775;font-size:18px;line-height:1} .aa details.aa-q[open] summary::after{content:\"\\2212\"} .aa .aa-a{font-size:13px;color:#3a3a3a;margin-top:.5rem} .aa .aa-a p{margin:0 0 .5rem} .aa .aa-badge-bleu{background:#185FA5;color:#FFF} .aa .aa-badge-orange{background:#C84B31;color:#FFF} .aa .aa-vars{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:1rem 0 1.5rem} .aa .aa-var{background:#fff;border:1px solid #d8d2c4;border-radius:8px;overflow:hidden} .aa .aa-var-v{height:90px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;padding:0 10px} .aa .aa-var-v.dark{color:#FAC775} .aa .aa-var-v.light{color:#1A1A1A} .aa .aa-var-i{background:#fff;border-top:1px solid #ebe5d6;padding:.6rem .8rem} .aa .aa-var-n{font-size:13px;font-weight:700;display:block} .aa .aa-var-d{font-size:11px;font-style:italic;color:#555;display:block} @media(max-width:600px){.aa .aa-ben,.aa .aa-links,.aa .aa-vars{grid-template-columns:1fr}} \u003c\/style\u003e\u003cdiv class=\"aa\"\u003e\n\n\u003cp\u003e\u003cspan class=\"aa-badge aa-badge-noir\"\u003eFerrofluid\u003c\/span\u003e \u003cspan class=\"aa-badge aa-badge-bleu\"\u003eScientific object\u003c\/span\u003e \u003cstrong\u003eMAGMA\u003c\/strong\u003e is a \u003cstrong\u003eferrofluid in a vial\u003c\/strong\u003e to keep close at hand: a small \u003cstrong\u003eround glass vial\u003c\/strong\u003e containing a \u003cstrong\u003eblack magnetic liquid\u003c\/strong\u003e suspended in a transparent liquid. Bring the \u003cstrong\u003emagnetic bead\u003c\/strong\u003e attached to the end of its cord close: the ferrofluid instantly rises into \u003cstrong\u003espiky peaks\u003c\/strong\u003e, follows the magnet against the wall, stretches, and reforms with every movement. Compact (\u003cstrong\u003e4.7 × 4.2 cm\u003c\/strong\u003e for the vial), topped with a clear cap and an 18 cm \u003cstrong\u003ebeige cord\u003c\/strong\u003e, it can sit on a desk, hang from a bag or shelf, or even be worn as a pendant by attaching it to a chain or longer cord. It is first and foremost a \u003cstrong\u003ehands-on scientific object\u003c\/strong\u003e that makes the action of a magnetic field visible in a few seconds, and a pocket curiosity that catches everyone's eye. A lovely gateway to the Lab for curious minds of all ages, under adult supervision for younger children.\u003c\/p\u003e\n\n\u003cdiv class=\"aa-mat\"\u003e\n\n\u003ch3\u003eFerrofluid, a liquid that obeys the magnet\u003c\/h3\u003e\n\n\u003cp\u003eA \u003cstrong\u003eferrofluid\u003c\/strong\u003e is a liquid loaded with \u003cstrong\u003emagnetic nanoparticles\u003c\/strong\u003e, iron oxide grains so fine that they remain suspended without ever settling. Developed in the 1960s to control fuels in zero gravity, it is now used in certain speakers and seals.\u003c\/p\u003e\n\n\u003cp\u003eWithout a magnet, it behaves like a simple drop of ink. As soon as a \u003cstrong\u003emagnetic field\u003c\/strong\u003e approaches, the particles align with its lines of force: the surface of the liquid then bristles with regular spikes, a phenomenon that physicists call the \u003cstrong\u003eRosensweig instability\u003c\/strong\u003e.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eWhy you will love it\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 liquid that sculpts itself\u003c\/span\u003e\u003cspan class=\"ds\"\u003eSpikes, waves, drops: the shape changes with every gesture.\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\"\u003eMagnet built into the cord\u003c\/span\u003e\u003cspan class=\"ds\"\u003eThe magnetic bead is always within reach.\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\"\u003eTo sit or hang\u003c\/span\u003e\u003cspan class=\"ds\"\u003eOn a desk, from a bag, a shelf, or worn as a pendant.\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\"\u003eGlass vial\u003c\/span\u003e\u003cspan class=\"ds\"\u003eTransparent glass that lets you see every movement.\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\"\u003ePocket size\u003c\/span\u003e\u003cspan class=\"ds\"\u003e4.7 × 4.2 cm: it travels in a pocket or case.\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\"\u003eA physics lesson\u003c\/span\u003e\u003cspan class=\"ds\"\u003eThe magnetic field becomes visible, without lab equipment.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eThe MAGMA spirit\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-des\"\u003e\n\n\u003cp class=\"t\"\u003eA fragment of living matter at the end of a cord\u003c\/p\u003e\n\n\u003cdiv class=\"x\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003emagma\u003c\/strong\u003e is that molten rock that bubbles beneath our feet, black and moving, always ready to change shape. MAGMA's ferrofluid has that look: a dark and dense drop that comes alive as soon as you approach it.\u003c\/p\u003e\n\n\u003cp\u003eYou place it on the desk, pick it up, bring the magnetic bead close, and the liquid bristles into a small \u003cstrong\u003ecrown of spikes\u003c\/strong\u003e. You move the magnet away, and it relaxes. You turn around the vial, and it follows. The gesture quickly becomes a reflex, and everyone who passes by wants to try.\u003c\/p\u003e\n\n\u003cp\u003eAn object of curiosity, a small \u003cstrong\u003eportable laboratory\u003c\/strong\u003e, or a unique pendant, MAGMA makes an invisible force tangible: that of the magnet.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"aa-steps\"\u003e\n\n\u003ch4\u003eMake the ferrofluid react in 4 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\u003ePlace the vial.\u003c\/strong\u003e Hold it vertically or place it on a flat surface, cap facing up.\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\u003eBring the magnetic bead close.\u003c\/strong\u003e Place the magnet on the cord against the glass wall of the vial.\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\u003eMake it dance.\u003c\/strong\u003e Move the magnet slowly around the vial: the ferrofluid follows it and bristles.\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\u003eLet it rest.\u003c\/strong\u003e Move the magnet away: the liquid relaxes and regains its drop shape.\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eMAGMA or MAGNETA?\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-cmp\"\u003e\u003ctable\u003e\n\n\u003cthead\u003e\u003ctr\u003e\n\n\u003cth\u003eCriterion\u003c\/th\u003e\n\n\u003cth\u003eMAGMA\u003c\/th\u003e\n\n\u003cth\u003eMAGNETA\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eFormat\u003c\/td\u003e\n\n\u003ctd\u003eRound pocket vial, 4.7 × 4.2 cm\u003c\/td\u003e\n\n\u003ctd\u003eDesk bottle\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"hl\"\u003e\n\n\u003ctd\u003eMagnet\u003c\/td\u003e\n\n\u003ctd\u003eMagnetic bead at the end of the cord\u003c\/td\u003e\n\n\u003ctd\u003e2 magnets included\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eUse\u003c\/td\u003e\n\n\u003ctd\u003eTo sit, hang, or wear as a pendant\u003c\/td\u003e\n\n\u003ctd\u003eTo sit on the desk\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"hl\"\u003e\n\n\u003ctd\u003eFerrofluid color\u003c\/td\u003e\n\n\u003ctd\u003eBlack\u003c\/td\u003e\n\n\u003ctd\u003eSeveral liquid colors\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eContainer\u003c\/td\u003e\n\n\u003ctd\u003eGlass\u003c\/td\u003e\n\n\u003ctd\u003eGlass\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\u003cdiv class=\"aa-info\"\u003e\u003cp\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e the ferrofluid is enclosed in a vial sealed with its cap; it is not intended to be opened. Over time, a slight deposit may appear on the wall: a few movements of the magnet usually peel it off. For a larger version, to sit on the desk and offered in several colors, discover the \u003ca href=\"\/en\/products\/ferrofluide-magnetique-en-bouteille-decouvrez-la-science\"\u003eMAGNETA bottled ferrofluid\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"aa-tip\"\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e the spectacle is more striking on a \u003cstrong\u003elight background\u003c\/strong\u003e and under side lighting, which highlights every spike of the ferrofluid. For a demonstration in class or with the family, bring the magnet close then move it away slowly: you can see the shape follow the magnetic field exactly.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eTechnical specifications\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-sp\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eType\u003c\/td\u003e\n\n\u003ctd\u003eFerrofluid in a vial, to sit or hang\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eVial contents\u003c\/td\u003e\n\n\u003ctd\u003eBlack ferrofluid in a transparent liquid\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eVial\u003c\/td\u003e\n\n\u003ctd\u003eTransparent glass, flattened round shape\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eVial height\u003c\/td\u003e\n\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eVial width\u003c\/td\u003e\n\n\u003ctd\u003e42 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCap\u003c\/td\u003e\n\n\u003ctd\u003e25 mm, light color\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCord\u003c\/td\u003e\n\n\u003ctd\u003eBeige, 180 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMagnet\u003c\/td\u003e\n\n\u003ctd\u003eMagnetic bead at the end of the cord\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eUse\u003c\/td\u003e\n\n\u003ctd\u003eDesk object, hanging, pendant\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eBattery \/ electronics\u003c\/td\u003e\n\n\u003ctd\u003eNone\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eContents\u003c\/td\u003e\n\n\u003ctd\u003e1 vial of ferrofluid with magnetic cord\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"aa-warn\"\u003e\u003cp\u003e\u003cstrong\u003eWarning, magnet:\u003c\/strong\u003e this product contains a magnet. Keep it away from \u003cstrong\u003epacemakers and implanted defibrillators\u003c\/strong\u003e: people equipped with them must \u003cstrong\u003enot wear it as a pendant\u003c\/strong\u003e or keep it in a chest pocket. Keep it away from bank cards and magnetic media. The vial is made of glass: do not drop it and do not open it, the liquid \u003cstrong\u003estains permanently\u003c\/strong\u003e textiles and porous surfaces. \u003cstrong\u003eSmall parts and magnet: keep out of reach of young children\u003c\/strong\u003e (risk of ingestion); use by a child under adult supervision.\u003c\/p\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"aa-gift\"\u003e\n\n\u003ch3\u003eA scientific curiosity to give\u003c\/h3\u003e\n\n\u003cp\u003eMAGMA is an original \u003cstrong\u003escientific gift\u003c\/strong\u003e for a \u003cstrong\u003ebirthday\u003c\/strong\u003e or \u003cstrong\u003eChristmas\u003c\/strong\u003e: for a physics enthusiast, a student, a teacher, a lover of unusual objects, or a colleague who likes clever desk gadgets. Small and compact, it easily slips into a Christmas stocking or accompanies a more important gift.\u003c\/p\u003e\n\n\u003cp\u003eTo go further in the exploration of magnetism and matter, pair it with the MAGNETA bottled ferrofluid or another object from the Minerals \u0026amp; Chemistry collection.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eTo pair with\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-links\"\u003e\n\n\u003ca class=\"aa-link\" href=\"\/en\/products\/ferrofluide-magnetique-en-bouteille-decouvrez-la-science\"\u003e\u003cspan class=\"lt\"\u003eMAGNETA bottled ferrofluid\u003c\/span\u003e\u003cspan class=\"ld\"\u003eThe desk version, with two magnets\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"aa-link\" href=\"\/en\/collections\/mineraux-et-chimie\"\u003e\u003cspan class=\"lt\"\u003eMinerals \u0026amp; Chemistry\u003c\/span\u003e\u003cspan class=\"ld\"\u003ePeriodic table, ferrofluids, and terrariums\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"aa-link\" href=\"\/en\/collections\/objets-scientifiques\"\u003e\u003cspan class=\"lt\"\u003eThe Lab\u003c\/span\u003e\u003cspan class=\"ld\"\u003eScientific objects and curiosities to give\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"aa-link\" href=\"\/en\/collections\/bureau-et-hi-tech\"\u003e\u003cspan class=\"lt\"\u003eDesk \u0026amp; High-Tech\u003c\/span\u003e\u003cspan class=\"ld\"\u003eOriginal and practical desk objects\u003c\/span\u003e\u003c\/a\u003e\n\n\u003c\/div\u003e\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\u003eWhat is ferrofluid?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003e\u003cp\u003eA \u003cstrong\u003eferrofluid\u003c\/strong\u003e is a liquid containing \u003cstrong\u003emagnetic nanoparticles\u003c\/strong\u003e of iron oxide, fine enough to remain permanently suspended. Without a magnet, it looks like a drop of black ink. In the presence of a \u003cstrong\u003emagnetic field\u003c\/strong\u003e, the particles align and the liquid takes spectacular shapes: spikes, ridges, waves. Invented in the 1960s, it is now used in certain speakers and industrial seals, and makes a fascinating demonstration object. In MAGMA, it is enclosed in a glass vial to be observed with ease.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eHow to make it react?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003e\u003cp\u003eSimply bring the \u003cstrong\u003emagnetic bead\u003c\/strong\u003e attached to the end of the cord close to the wall of the vial. The ferrofluid is immediately attracted and bristles into \u003cstrong\u003esmall spikes\u003c\/strong\u003e. Move the magnet slowly around the vial: the liquid follows it, stretches, and reforms. Move the magnet away, and it relaxes. You can also use another magnet, for example a refrigerator magnet, to observe how the shape changes according to the strength and position of the field. The closer the magnet, the more pronounced the spikes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eCan it be worn as a necklace?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003e\u003cp\u003eYes, MAGMA can be worn as a \u003cstrong\u003ependant\u003c\/strong\u003e by attaching it to a chain or a longer cord: its original 18 cm cord is mainly used to hang it from a bag, handle, or shelf. We present it first as a \u003cstrong\u003escientific object\u003c\/strong\u003e to sit or handle. Important: people equipped with a \u003cstrong\u003epacemaker or implanted defibrillator\u003c\/strong\u003e must not wear it close to the chest due to the magnet. For others, it becomes a curiosity pendant, original and unique.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eCan the vial leak or open?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003e\u003cp\u003eThe ferrofluid is enclosed in a \u003cstrong\u003eglass vial\u003c\/strong\u003e sealed with its cap. It is not intended to be opened: do not remove the cap, as the liquid \u003cstrong\u003epermanently stains\u003c\/strong\u003e textiles and porous surfaces. Like any glass object, MAGMA is sensitive to impacts and falls on hard floors. Store it at room temperature, away from frost and direct heat, to preserve the liquid. If a deposit appears on the wall, a few movements of the magnet usually peel it off. Handle it above a table rather than above a tiled floor.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eIs it compatible with a pacemaker?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003e\u003cp\u003eLike any object containing a \u003cstrong\u003emagnet\u003c\/strong\u003e, MAGMA must be kept away from \u003cstrong\u003epacemakers and implanted defibrillators\u003c\/strong\u003e. People equipped with them must not wear it as a pendant or store it in a chest pocket, and must respect the distances indicated by the manufacturer of their device or by their doctor. Also keep the magnet away from bank cards, badges, and magnetic media. If in doubt, ask your doctor for advice before giving it or using it. Finally, keep the vial and its magnetic bead out of reach of young children due to the risk of magnet ingestion.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eWhat is the difference with MAGNETA ferrofluid?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003e\u003cp\u003eBoth objects use the same phenomenon: a \u003cstrong\u003eferrofluid\u003c\/strong\u003e that reacts to the magnet in a glass container. \u003cstrong\u003eMAGNETA\u003c\/strong\u003e is a desk bottle delivered with two magnets and offered in several liquid colors, ideal for a stationary demonstration. \u003cstrong\u003eMAGMA\u003c\/strong\u003e is a pocket vial, black ferrofluid, with its magnetic bead attached to the cord: it sits, hangs, or is worn, and follows you everywhere. The two complement each other well: one stays at the desk, the other accompanies you. Together, they form a lovely duo for exploring magnetism.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"aa-q\"\u003e\u003csummary\u003eIs it a good gift idea?\u003c\/summary\u003e\u003cdiv class=\"aa-a\"\u003e\u003cp\u003eYes, it is a \u003cstrong\u003escientific gift\u003c\/strong\u003e that intrigues at first glance and can be handled without instructions. It appeals to science enthusiasts, students, teachers, and lovers of unusual objects, for a \u003cstrong\u003ebirthday\u003c\/strong\u003e or \u003cstrong\u003eChristmas\u003c\/strong\u003e. For younger children, it is used under adult supervision, with the magnet and vial remaining out of reach of young children. Pair it with MAGNETA for a duo around magnetism. Its small format allows it to slip into a Christmas stocking or accompany a more important gift.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e","brand":"Atelier Atypique","offers":[{"title":"Default Title","offer_id":55002203652419,"sku":"AA-MAGMA","price":39.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0231\/3365\/0991\/files\/ferrofluide-pendentif-magma-flacon-verre.webp?v=1793459685","url":"https:\/\/atelierproatypique.com\/en\/products\/ferrofluide-en-flacon-a-suspendre-ou-porter-en-pendentif-magma","provider":"Atelier Atypique","version":"1.0","type":"link"}