{"product_id":"ferrofluide-magnetique-en-bouteille-decouvrez-la-science","title":"Magnetic Ferrofluid in a Bottle – Discover the Science","description":"\u003cmeta charset=\"UTF-8\"\u003e\u003cstyle\u003e\n.fp-body{font-family:sans-serif;color:#1a1a1a;line-height:1.7;font-size:15px;max-width:760px}\n.fp-body p{margin:0 0 1rem}.fp-body a{color:#185FA5;text-decoration:none}\n.fp-intro{font-size:15px;color:#333;margin-bottom:1.25rem;line-height:1.7}\n.fp-benefits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:1.25rem 0}\n.fp-benefit{background:#f7f7f5;border-radius:8px;padding:.75rem 1rem;display:flex;align-items:flex-start;gap:10px}\n.fp-benefit .fb-icon{font-size:18px;flex-shrink:0}.fp-benefit .fb-text{font-size:13px;line-height:1.5}\n.fp-benefit .fb-title{font-weight:500;margin-bottom:2px}.fp-benefit .fb-desc{color:#666}\n.fp-design{background:#1a1a1a;border-radius:12px;padding:1.25rem 1.5rem;margin:1.25rem 0;display:flex;align-items:flex-start;gap:14px}\n.fp-design .fd-icon{font-size:28px;flex-shrink:0}.fp-design .fd-text{color:#fff;font-size:13px;line-height:1.6}\n.fp-design .fd-title{font-weight:600;font-size:14px;margin-bottom:5px;color:#FAC775}\n.fp-inclus{background:#fffdf7;border:2px solid #FAC775;border-radius:12px;padding:1.25rem 1.5rem;margin:1.25rem 0}\n.fp-inclus h4{margin:0 0 .75rem;font-size:14px;font-weight:500;color:#412402}\n.fp-inclus-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}\n.fp-inclus-item{background:#fff;border-radius:8px;padding:.75rem;text-align:center}\n.fp-inclus-item .ii-icon{font-size:18px;margin-bottom:.3rem;display:block}\n.fp-inclus-item .ii-title{font-size:12px;font-weight:500}.fp-inclus-item .ii-desc{font-size:11px;color:#666;line-height:1.4}\n.fp-tip{background:#E1F5EE;border-left:4px solid #1D9E75;border-radius:0 8px 8px 0;padding:1rem 1.25rem;margin:1.25rem 0}\n.fp-tip p{margin:0;color:#04342C;font-size:13px}.fp-tip strong{color:#085041}\n.fp-specs{background:#f7f7f5;border-radius:10px;padding:1rem 1.25rem;margin:1.25rem 0;overflow-x:auto}\n.fp-specs table{width:100%;border-collapse:collapse;font-size:13px}\n.fp-specs td{padding:6px 8px;border-bottom:1px solid #e8e8e8}\n.fp-specs td:first-child{font-weight:500;color:#555;width:45%}\n.fp-specs tr:last-child td{border-bottom:none}\n.fp-gift{background:#fffdf7;border:1px solid #FAC775;border-radius:10px;padding:1rem 1.25rem;margin:1.25rem 0;font-size:13px;color:#412402}\n.fp-faq{margin:1.25rem 0}.fp-faq-item{border-bottom:1px solid #eee;padding:.9rem 0}\n.fp-faq-item:last-child{border-bottom:none}.fp-faq-q{font-size:14px;font-weight:500;margin-bottom:.4rem}\n.fp-faq-a{font-size:13px;color:#555;line-height:1.6}\n@media(max-width:480px){.fp-benefits,.fp-inclus-grid{grid-template-columns:1fr}}\n\u003c\/style\u003e\n\u003cdiv class=\"fp-body\"\u003e\n\u003cp class=\"fp-intro\"\u003eThe \u003cstrong\u003eMagnetic Ferrofluid in a Bottle\u003c\/strong\u003e — iron nanoparticles suspended in liquid, sealed in a \u003cstrong\u003eglass\u003c\/strong\u003e bottle. Dimensions: \u003cstrong\u003e7.2 × 2.2 cm\u003c\/strong\u003e. \u003cstrong\u003e6 colors\u003c\/strong\u003e: Green, Transparent, Pink, Yellow, Blue, Orange. Comes with \u003cstrong\u003e2 magnets\u003c\/strong\u003e for immediate manipulation. Creates artistic and hypnotic shapes when in contact with a magnet.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:500;margin:1.5rem 0 .5rem\"\u003e6 available colors\u003c\/h3\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin:.75rem 0 1.25rem\"\u003e\n\u003cdiv style=\"background:#fff;border:.5px solid #e0e0e0;border-radius:8px;overflow:hidden\"\u003e\n\u003cdiv style=\"height:32px;background:linear-gradient(135deg,#00A86B 0%,#00FF88 100%)\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding:4px 6px;font-size:10px;font-weight:500;color:#1a1a1a\"\u003eGreen\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border:.5px solid #e0e0e0;border-radius:8px;overflow:hidden\"\u003e\n\u003cdiv style=\"height:32px;background:linear-gradient(135deg,#D0D0D0 0%,#F0F0F0 100%)\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding:4px 6px;font-size:10px;font-weight:500;color:#1a1a1a\"\u003eTransparent\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border:.5px solid #e0e0e0;border-radius:8px;overflow:hidden\"\u003e\n\u003cdiv style=\"height:32px;background:linear-gradient(135deg,#FF69B4 0%,#FFB6C1 100%)\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding:4px 6px;font-size:10px;font-weight:500;color:#1a1a1a\"\u003ePink\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border:.5px solid #e0e0e0;border-radius:8px;overflow:hidden\"\u003e\n\u003cdiv style=\"height:32px;background:linear-gradient(135deg,#FFD700 0%,#FFEC6E 100%)\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding:4px 6px;font-size:10px;font-weight:500;color:#1a1a1a\"\u003eYellow\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border:.5px solid #e0e0e0;border-radius:8px;overflow:hidden\"\u003e\n\u003cdiv style=\"height:32px;background:linear-gradient(135deg,#0080FF 0%,#00BFFF 100%)\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding:4px 6px;font-size:10px;font-weight:500;color:#1a1a1a\"\u003eBlue\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border:.5px solid #e0e0e0;border-radius:8px;overflow:hidden\"\u003e\n\u003cdiv style=\"height:32px;background:linear-gradient(135deg,#FF6600 0%,#FF9933 100%)\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding:4px 6px;font-size:10px;font-weight:500;color:#1a1a1a\"\u003eOrange\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fp-benefits\"\u003e\n\u003cdiv class=\"fp-benefit\"\u003e\n\u003cspan class=\"fb-icon\"\u003e🧲\u003c\/span\u003e\u003cdiv class=\"fb-text\"\u003e\n\u003cdiv class=\"fb-title\"\u003eHypnotic shapes on contact\u003c\/div\u003e\n\u003cdiv class=\"fb-desc\"\u003eBring the magnet closer: the ferrofluid rises into spikes, forms valleys, arches, and patterns that seem alive. Each manipulation creates a unique spectacle.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-benefit\"\u003e\n\u003cspan class=\"fb-icon\"\u003e⚗️\u003c\/span\u003e\u003cdiv class=\"fb-text\"\u003e\n\u003cdiv class=\"fb-title\"\u003eSuspended iron nanoparticles\u003c\/div\u003e\n\u003cdiv class=\"fb-desc\"\u003eFerrofluid is composed of iron nanoparticles in colloidal suspension — they follow the magnetic field with fascinating precision and fluidity.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-benefit\"\u003e\n\u003cspan class=\"fb-icon\"\u003e🎨\u003c\/span\u003e\u003cdiv class=\"fb-text\"\u003e\n\u003cdiv class=\"fb-title\"\u003eEver-changing patterns\u003c\/div\u003e\n\u003cdiv class=\"fb-desc\"\u003eEach manipulation with the magnet creates a different pattern depending on the distance, angle, and speed of approach — the visual possibilities are infinite.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-benefit\"\u003e\n\u003cspan class=\"fb-icon\"\u003e🧘\u003c\/span\u003e\u003cdiv class=\"fb-text\"\u003e\n\u003cdiv class=\"fb-title\"\u003eStress relief \u0026amp; relaxation tool\u003c\/div\u003e\n\u003cdiv class=\"fb-desc\"\u003eObserving the hypnotic movements of the ferrofluid has an immediate calming effect — a silent and visual stress-relief tool for the office or home.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-benefit\"\u003e\n\u003cspan class=\"fb-icon\"\u003e📦\u003c\/span\u003e\u003cdiv class=\"fb-text\"\u003e\n\u003cdiv class=\"fb-title\"\u003e2 magnets included\u003c\/div\u003e\n\u003cdiv class=\"fb-desc\"\u003eComes ready to use with two magnets — immediate manipulation upon opening the package. No additional equipment required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-benefit\"\u003e\n\u003cspan class=\"fb-icon\"\u003e🎁\u003c\/span\u003e\u003cdiv class=\"fb-text\"\u003e\n\u003cdiv class=\"fb-title\"\u003e6 colors — original science gift\u003c\/div\u003e\n\u003cdiv class=\"fb-desc\"\u003eGreen, Transparent, Pink, Yellow, Blue, or Orange — choose the color based on the recipient's style. Ideal for curious teens and adults.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fp-design\"\u003e\n\u003cdiv class=\"fd-icon\"\u003e🧲\u003c\/div\u003e\n\u003cdiv class=\"fd-text\"\u003e\n\u003cdiv class=\"fd-title\"\u003eGlass ferrofluid · 7.2 × 2.2 cm · 6 colors · 2 magnets included · iron nanoparticles\u003c\/div\u003e\nFerrofluid is one of the most counter-intuitive materials that exist — a liquid that behaves like a solid on contact with a magnet. Bring the magnet close to the bottle: the liquid comes alive, rising into irregular spikes, forming deep valleys, structures that seem to defy all logic. Move the magnet away: everything collapses and returns to a liquid state. In 7.2 × 2.2 cm glass, 6 colors, 2 magnets included — fluid physics made visible and contemplative.\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fp-inclus\"\u003e\n\u003ch4\u003e📦 Content\u003c\/h4\u003e\n\u003cdiv class=\"fp-inclus-grid\"\u003e\n\u003cdiv class=\"fp-inclus-item\"\u003e\n\u003cspan class=\"ii-icon\"\u003e🧪\u003c\/span\u003e\u003cdiv class=\"ii-title\"\u003e1 ferrofluid bottle\u003c\/div\u003e\n\u003cdiv class=\"ii-desc\"\u003eGlass · 7.2 × 2.2 cm · color of choice\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-inclus-item\"\u003e\n\u003cspan class=\"ii-icon\"\u003e🧲\u003c\/span\u003e\u003cdiv class=\"ii-title\"\u003e2 magnets\u003c\/div\u003e\n\u003cdiv class=\"ii-desc\"\u003eFor immediate manipulation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fp-specs\"\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eGlass + ferrofluid (iron nanoparticles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7.2 × 2.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColors\u003c\/td\u003e\n\u003ctd\u003eGreen \/ Transparent \/ Pink \/ Yellow \/ Blue \/ Orange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContent\u003c\/td\u003e\n\u003ctd\u003e1 bottle + 2 magnets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrinciple\u003c\/td\u003e\n\u003ctd\u003eFerrofluid — suspended iron nanoparticles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eScience · stress relief · decoration · education\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fp-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003eFor best visual effects:\u003c\/strong\u003e slowly bring a magnet closer and watch the spikes (Rosensweig instability) form gradually. Try two magnets simultaneously on either side of the bottle for more complex patterns. Illuminate the ferrofluid from the side with a small lamp to reveal the depth of the formed structures.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"fp-gift\"\u003e\n🎁 \u003cstrong\u003eThe most fascinating science gift there is:\u003c\/strong\u003e glass, ferrofluid, 7.2 × 2.2 cm, 6 colors, 2 magnets included. An \u003cstrong\u003eoriginal and memorable gift\u003c\/strong\u003e for a \u003cstrong\u003ebirthday, Christmas, or teacher gift\u003c\/strong\u003e — for teens and adults passionate about science and beautiful objects.\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:500;margin:1.5rem 0 0.5rem;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cdiv class=\"fp-faq\"\u003e\n\u003cdiv class=\"fp-faq-item\"\u003e\n\u003cdiv class=\"fp-faq-q\"\u003eWhat exactly is ferrofluid?\u003c\/div\u003e\n\u003cdiv class=\"fp-faq-a\"\u003eFerrofluid is a colloidal liquid composed of iron nanoparticles (magnetite) suspended in a carrier liquid. These nanoparticles, about a nanometer in size, are too small to settle by gravity and remain in permanent suspension. When in contact with a magnet, they align and form the characteristic structures called \"Rosensweig instability\" — these regular spikes visible on the liquid's surface.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-faq-item\"\u003e\n\u003cdiv class=\"fp-faq-q\"\u003eWhy does ferrofluid form spikes?\u003c\/div\u003e\n\u003cdiv class=\"fp-faq-a\"\u003eThe spikes (Rosensweig instability) form when the magnetic force exceeds the liquid's surface tension. Ferrofluid seeks to follow the magnetic field while minimizing its energy — the balance between these two forces creates the characteristic and regular structures observable on the surface.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-faq-item\"\u003e\n\u003cdiv class=\"fp-faq-q\"\u003eAre the included magnets powerful enough?\u003c\/div\u003e\n\u003cdiv class=\"fp-faq-a\"\u003eYes — the 2 included magnets are sized to create visual effects through the bottle's glass. For more intense effects or at a greater distance, additional neodymium magnets (sold separately) can amplify the formations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fp-faq-item\"\u003e\n\u003cdiv class=\"fp-faq-q\"\u003eIs ferrofluid dangerous?\u003c\/div\u003e\n\u003cdiv class=\"fp-faq-a\"\u003eNot under normal use conditions — it is sealed in a glass bottle. Avoid direct contact with ferrofluid (it stains and is difficult to clean) and keep out of reach of young children. Do not open the bottle.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"What is ferrofluid?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Colloidal liquid of permanently suspended iron (magnetite) nanoparticles. On contact with a magnet, they form 'Rosensweig instability' structures — characteristic spikes.\"}},\n{\"@type\":\"Question\",\"name\":\"Why does ferrofluid form spikes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Rosensweig instability: balance between magnetic force (exceeding surface tension) and energy minimization — creates characteristic regular structures.\"}},\n{\"@type\":\"Question\",\"name\":\"Are the included magnets sufficient?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — sized for visual effects through glass. Additional neodymium magnets for more intense effects.\"}},\n{\"@type\":\"Question\",\"name\":\"Is ferrofluid dangerous?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not in normal use — sealed in glass. Avoid direct contact (stains). Keep out of reach of young children. Do not open the bottle.\"}}\n]}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Atelier Atypique","offers":[{"title":"Blue","offer_id":49424086335811,"sku":"1005003976586344-(E)","price":24.9,"currency_code":"EUR","in_stock":true},{"title":"Orange ","offer_id":49424086368579,"sku":"1005003976586344-(F)","price":24.9,"currency_code":"EUR","in_stock":true},{"title":"Pink","offer_id":49424086401347,"sku":"1005003976586344-(C)","price":24.9,"currency_code":"EUR","in_stock":true},{"title":"Yellow","offer_id":49424086434115,"sku":"1005003976586344-(D)","price":24.9,"currency_code":"EUR","in_stock":true},{"title":"Glass","offer_id":49424086499651,"sku":"1005003976586344-(A)","price":24.9,"currency_code":"EUR","in_stock":true},{"title":"Transparent","offer_id":49424086532419,"sku":"1005003976586344-(B)","price":24.9,"currency_code":"EUR","in_stock":true},{"title":"Pack of 6 colors","offer_id":49424086466883,"sku":"1005003976586344-(6colors)","price":99.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0231\/3365\/0991\/files\/ferrofluide-magnetique-2.jpgw3.webp?v=1771645344","url":"https:\/\/atelierproatypique.com\/en\/products\/ferrofluide-magnetique-en-bouteille-decouvrez-la-science","provider":"Atelier Atypique","version":"1.0","type":"link"}