{"product_id":"flipping-rings-force-decomposition-and-synthesis-demonstrator-physics-experiment-for-classroom-teaching-demonstration","title":"Force decomposition and composition demonstrator, ring - EQUILIBRA","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 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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\u003c\/style\u003e\n\u003cdiv class=\"aa\"\u003e\n\n\u003cp\u003e\u003cspan class=\"aa-badge aa-badge-noir\"\u003eThe Lab\u003c\/span\u003e \u003cspan class=\"aa-badge aa-badge-bleu\"\u003eEducational Equipment\u003c\/span\u003e Three spheres suspended in the heart of a ring, a few taut strings, and suddenly the vectors from the physics textbook come to life. This \u003cstrong\u003eforce decomposition and composition demonstrator\u003c\/strong\u003e makes one of the fundamental principles of mechanics visible: an object remains stationary when the forces acting upon it cancel each other out. A large \u003cstrong\u003emetal ring\u003c\/strong\u003e with the appearance of an aluminum rim is mounted vertically on a \u003cstrong\u003ewhite tubular stand\u003c\/strong\u003e. Inside, \u003cstrong\u003ethree green spheres\u003c\/strong\u003e are held by \u003cstrong\u003etaut links\u003c\/strong\u003e that materialize the directions of the forces. A unique feature of this model: the \u003cstrong\u003etilting ring\u003c\/strong\u003e allows you to change the orientation of the entire assembly and observe how \u003cstrong\u003eequilibrium\u003c\/strong\u003e is restored. With its \u003cstrong\u003e50.5 cm height\u003c\/strong\u003e, 48 cm width, and 15 cm depth, it can be seen from the back of a classroom. An \u003cstrong\u003eeducational physics tool\u003c\/strong\u003e with a graphic design, it also makes a striking display object for an engineer's office.\u003c\/p\u003e\n\n\u003ch3 class=\"aa-title\"\u003eThe model\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-vars\"\u003e\n\n\u003cdiv class=\"aa-var\"\u003e\n\n\u003cdiv class=\"aa-var-v light\" style=\"background: #9A9A9A;\"\u003eUNIQUE MODEL\u003c\/div\u003e\n\n\u003cdiv class=\"aa-var-i\"\u003e\n\n\u003cspan class=\"aa-var-n\"\u003eUnique model\u003c\/span\u003e\u003cspan class=\"aa-var-d\"\u003eTilting metal ring, 3 green spheres, white tubular stand\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 dark\" style=\"background: linear-gradient(135deg,#F5F0E8 0%,#2E6B3F 100%);\"\u003e505 × 480 × 150 MM\u003c\/div\u003e\n\n\u003cdiv class=\"aa-var-i\"\u003e\n\n\u003cspan class=\"aa-var-n\"\u003eDimensions\u003c\/span\u003e\u003cspan class=\"aa-var-d\"\u003eHeight 50.5 cm · width 48 cm · depth 15 cm\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"aa-mat\"\u003e\n\n\u003ch3\u003eComposing and decomposing a force\u003c\/h3\u003e\n\n\u003cp\u003eA force is represented by an arrow, a \u003cstrong\u003evector\u003c\/strong\u003e, which has a direction, a sense, and a magnitude. When several forces act on the same point, they can be replaced by a single force, their \u003cstrong\u003eresultant\u003c\/strong\u003e: this is the composition of forces. Conversely, a force can be decomposed into several components along chosen directions. The Flemish mathematician Simon Stevin illustrated this as early as 1586 with his famous \"garland\" placed on an inclined plane, and the \u003cstrong\u003eparallelogram rule\u003c\/strong\u003e provides the geometric construction for it.\u003c\/p\u003e\n\n\u003cp\u003eWhen an object is motionless, the vector sum of the forces acting upon it is zero: this is the \u003cstrong\u003econdition of equilibrium\u003c\/strong\u003e, a direct consequence of Newton's laws. In this demonstrator, each sphere is held by taut links whose directions are visible; their tensions, combined with the weight of the sphere, cancel each other out exactly. By tilting the ring, the angles are modified, and you can see the equilibrium reorganize, which makes the way the intensity of each component depends on its direction tangible.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eWhy this demonstrator is compelling\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\n\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eVectors become visible\u003c\/span\u003e\u003cspan class=\"ds\"\u003eThe taut links literally draw the directions of the forces: the diagram on the board gains depth.\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\n\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eLarge, legible format\u003c\/span\u003e\u003cspan class=\"ds\"\u003eWith a ring approximately 48 cm wide, the demonstration remains visible to an entire class.\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\n\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eTilting ring\u003c\/span\u003e\u003cspan class=\"ds\"\u003eChanging the orientation of the ring allows for comparing multiple equilibrium configurations with the same device.\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\n\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eGraphic contrast\u003c\/span\u003e\u003cspan class=\"ds\"\u003eGreen spheres, metal ring, and white stand: immediate legibility, even from a distance.\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\n\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eNo power supply\u003c\/span\u003e\u003cspan class=\"ds\"\u003eThe demonstrator relies solely on gravity and the tension of the links: nothing to plug in.\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\n\u003cdiv\u003e\n\n\u003cspan class=\"tt\"\u003eAn object with character\u003c\/span\u003e\u003cspan class=\"ds\"\u003eOutside the classroom, its technical sculpture silhouette is intriguing on a desk or shelf.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"aa-des\"\u003e\n\n\u003cp class=\"t\"\u003eWhen equilibrium becomes a work of art\u003c\/p\u003e\n\n\u003cdiv class=\"x\"\u003e\n\n\u003cp\u003eLong before calculation software, engineers dimensioned bridges, cranes, and frames by drawing force polygons with a ruler and compass. This \u003cstrong\u003egraphic statics\u003c\/strong\u003e enabled the construction of the great metal structures of the 19th century. This demonstrator offers a three-dimensional version of that: each taut link is a construction line, each sphere a structural node.\u003c\/p\u003e\n\n\u003cp\u003eIts \u003cstrong\u003emetal ring\u003c\/strong\u003e evokes a bicycle wheel, its white stand the sobriety of a laboratory instrument, its \u003cstrong\u003egreen spheres\u003c\/strong\u003e the precision of a colored diagram. In front of it, students understand at a glance why a highly inclined cable must be much tighter than a vertical cable to carry the same load. And when the ring tilts, the equilibrium is recomposed before their eyes, silent proof that the laws of mechanics do not depend on one's point of view.\u003c\/p\u003e\n\n\u003cp\u003eWe then measure the universality of \u003cstrong\u003estatics\u003c\/strong\u003e: the same rules govern the tension of a clothesline, the inclination of a suspension bridge's stays, and the work of the muscles that maintain our posture. One single object, and a whole section of the built world becomes legible.\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\u003eUsing the demonstrator in four steps\u003c\/h4\u003e\n\n\u003cdiv class=\"aa-step\"\u003e\n\n\u003cspan class=\"aa-step-n\"\u003e1\u003c\/span\u003e\n\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003eSet up the device.\u003c\/strong\u003e Place the stand on a stable, horizontal table with sufficient clearance around the ring (48 cm wide, 50.5 cm high).\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\n\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003eObserve the initial equilibrium.\u003c\/strong\u003e Note the position of the three spheres and the direction of each link: have students identify the forces acting on each sphere.\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\n\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003eTilt the ring.\u003c\/strong\u003e Gently change the orientation of the ring and observe how the links and spheres adopt a new configuration.\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\n\u003cdiv class=\"aa-step-c\"\u003e\n\n\u003cstrong\u003eDiagram and conclude.\u003c\/strong\u003e Reproduce the vectors of each configuration on the board, construct the parallelograms, and verify that the resultant is zero at equilibrium.\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eComparison\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-cmp\"\u003e\n\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003eCriteria\u003c\/th\u003e\n\n\u003cth\u003eThis ring demonstrator\u003c\/th\u003e\n\n\u003cth\u003eClassic force table\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003ePrinciple\u003c\/td\u003e\n\n\u003ctd\u003eSpheres suspended by taut links in a ring\u003c\/td\u003e\n\n\u003ctd\u003eStrings, pulleys, and calibrated weights around a graduated disc\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"hl\"\u003e\n\n\u003ctd\u003eOrientation\u003c\/td\u003e\n\n\u003ctd\u003eVertical, tilting ring\u003c\/td\u003e\n\n\u003ctd\u003eHorizontal\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eClassroom visibility\u003c\/td\u003e\n\n\u003ctd\u003eLarge format, readable from afar\u003c\/td\u003e\n\n\u003ctd\u003eMainly for close-up practical work\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"hl\"\u003e\n\n\u003ctd\u003eQuantitative measurement\u003c\/td\u003e\n\n\u003ctd\u003eQualitative reading of directions\u003c\/td\u003e\n\n\u003ctd\u003eMeasurement of angles and weights\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpace requirement\u003c\/td\u003e\n\n\u003ctd\u003e50.5 × 48 × 15 cm\u003c\/td\u003e\n\n\u003ctd\u003eVariable\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr class=\"hl\"\u003e\n\n\u003ctd\u003eKey strength\u003c\/td\u003e\n\n\u003ctd\u003eCollective and visual demonstration\u003c\/td\u003e\n\n\u003ctd\u003eQuantitative exercises\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\u003cp\u003eTo complete your equipment, our \u003ca href=\"\/en\/collections\/physique-et-mouvement\"\u003ephysics and motion\u003c\/a\u003e collection brings together mechanics demonstrators, pendulums, and Stirling engines.\u003c\/p\u003e\n\n\u003cdiv class=\"aa-info\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eGood to know:\u003c\/strong\u003e the dimensions provided are \u003cstrong\u003e505 mm high, 480 mm wide, and 150 mm deep\u003c\/strong\u003e. The manufacturer provides no other technical information (weight, stand material, link adjustment): the product sheet describes what is shown in the photos.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"aa-tip\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e photograph the device from the front in each configuration, then project the image and draw the vectors directly onto it. Students can then measure the angles with a protractor and construct the force parallelograms on a faithful image of the assembly.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003ch3 class=\"aa-title\"\u003eTechnical specifications\u003c\/h3\u003e\n\n\u003cdiv class=\"aa-sp\"\u003e\n\n\u003ctable\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eType\u003c\/td\u003e\n\n\u003ctd\u003eForce decomposition and composition demonstrator\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMain element\u003c\/td\u003e\n\n\u003ctd\u003eMetal ring, aluminum appearance (per photos)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSpecial feature\u003c\/td\u003e\n\n\u003ctd\u003eTilting ring\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSuspended masses\u003c\/td\u003e\n\n\u003ctd\u003e3 green spheres\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnections\u003c\/td\u003e\n\n\u003ctd\u003eTaut links (strings or cables) inside the ring\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSupport\u003c\/td\u003e\n\n\u003ctd\u003eWhite tubular stand\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eHeight\u003c\/td\u003e\n\n\u003ctd\u003e505 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWidth\u003c\/td\u003e\n\n\u003ctd\u003e480 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eDepth\u003c\/td\u003e\n\n\u003ctd\u003e150 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eOperation\u003c\/td\u003e\n\n\u003ctd\u003eGravity and tension, no power supply\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConcepts covered\u003c\/td\u003e\n\n\u003ctd\u003eVectors, resultant, static equilibrium, parallelogram of forces\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWeight\u003c\/td\u003e\n\n\u003ctd\u003eNot disclosed\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"aa-warn\"\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrecautions:\u003c\/strong\u003e install the demonstrator on a \u003cstrong\u003estable\u003c\/strong\u003e surface, away from the edge of the table: its height makes it sensitive to shocks. Tilt the ring smoothly and do not pull on the links, as their tension is essential for the demonstration. The spheres may constitute small parts: keep out of reach of children under 3 years old; adult supervision is required for younger users.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"aa-gift\"\u003e\n\n\u003ch3\u003eTo equip a classroom or please an engineer\u003c\/h3\u003e\n\n\u003cp\u003eThis demonstrator is primarily intended for \u003cstrong\u003ephysics teachers\u003c\/strong\u003e, schools, and science clubs that want a striking collective demonstration. It also makes an original gift for a structural engineer, an architect, or a mechanics student, who will gladly display it in their office.\u003c\/p\u003e\n\n\u003cp\u003eTo complete the collection, browse our \u003ca href=\"\/en\/collections\/objets-scientifiques\"\u003eLab scientific objects\u003c\/a\u003e or the puzzles in our \u003ca href=\"\/en\/collections\/casse-tetes-et-bureau\"\u003epuzzles and office\u003c\/a\u003e selection.\u003c\/p\u003e\n\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\n\u003csummary\u003eWhat exactly does this device demonstrate?\u003c\/summary\u003e\n\u003cdiv class=\"aa-a\"\u003e\n\n\u003cp\u003eIt illustrates the \u003cstrong\u003ecomposition and decomposition of forces\u003c\/strong\u003e, as well as the equilibrium condition of a stationary object. Each green sphere is subject to its own weight and the tension of the links holding it. These forces have different directions, clearly materialized by the links, and their vector sum is zero since the sphere does not move. The demonstrator thus allows for a concrete visualization of the \u003cstrong\u003eparallelogram rule\u003c\/strong\u003e and the notion of resultant. By tilting the ring, you change the directions of the forces and observe how a new equilibrium is established, which significantly enriches classroom discussion.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\n\u003csummary\u003eWhat are its dimensions?\u003c\/summary\u003e\n\u003cdiv class=\"aa-a\"\u003e\n\n\u003cp\u003eThe demonstrator measures \u003cstrong\u003e505 mm high\u003c\/strong\u003e, \u003cstrong\u003e480 mm wide\u003c\/strong\u003e, and \u003cstrong\u003e150 mm deep\u003c\/strong\u003e. This large format is intentional: it allows an entire class to follow the demonstration from their seats without having to gather around the desk. Provide a stable table at least fifty centimeters wide, with a bit of space around the ring to allow it to tilt without hitting other objects. The manufacturer does not provide the weight of the device. However, its shallow depth makes it easy to store on a shelf between sessions.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\n\u003csummary\u003eWhat is the tilting ring for?\u003c\/summary\u003e\n\u003cdiv class=\"aa-a\"\u003e\n\n\u003cp\u003eThe ring can change orientation, which modifies the \u003cstrong\u003eangles between the links\u003c\/strong\u003e and the direction of the weight relative to them. The result: the spheres adopt a new equilibrium position and the distribution of tensions changes. This feature allows for the comparison of multiple configurations with a single device and shows that the same weight can require very different tensions depending on the inclination of the links. It is an excellent way to introduce a often counter-intuitive concept: the closer a cable is to the horizontal, the more \u003cstrong\u003etension\u003c\/strong\u003e it must have to carry a load. The manufacturer does not specify the exact range of the tilt.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\n\u003csummary\u003eCan forces be measured with this demonstrator?\u003c\/summary\u003e\n\u003cdiv class=\"aa-a\"\u003e\n\n\u003cp\u003eThis demonstrator is primarily \u003cstrong\u003equalitative\u003c\/strong\u003e: it makes the directions of forces and the state of equilibrium visible, but it is not delivered with any dynamometers or calibrated weights according to the manufacturer. However, it is very well suited for \u003cstrong\u003esemi-quantitative\u003c\/strong\u003e work: by photographing the device from the front, one can measure the angles of the links with a protractor, then construct the force parallelograms to scale based on the weight of a sphere. Students can then compare the relative tensions of the different links. For direct intensity measurements, it is usefully supplemented by a force table with dynamometers.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\n\u003csummary\u003eFor which level of education is it suitable?\u003c\/summary\u003e\n\u003cdiv class=\"aa-a\"\u003e\n\n\u003cp\u003eIt covers a wide spectrum. In \u003cstrong\u003emiddle school\u003c\/strong\u003e, it helps students understand that a stationary object is subject to forces that cancel each other out. In \u003cstrong\u003ehigh school\u003c\/strong\u003e, it illustrates the vector representation of forces, vector sums, and the principle of inertia. In \u003cstrong\u003ehigher education\u003c\/strong\u003e, particularly in civil engineering or mechanics, it serves as a visual introduction to statics and structural calculation. Its large format makes it above all a tool for collective demonstration, handled by the teacher in front of the class. It also finds a place in a science museum or a science outreach space.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\n\u003csummary\u003eDoes the demonstrator require any adjustment?\u003c\/summary\u003e\n\u003cdiv class=\"aa-a\"\u003e\n\n\u003cp\u003eThe manufacturer does not provide a detailed manual on link adjustment or the state of delivery, and we prefer not to claim anything we cannot guarantee. Based on the photos, the device is delivered as a set ready for demonstration, with the \u003cstrong\u003ethree spheres already suspended\u003c\/strong\u003e by their links. Before each session, simply check that the links are taut and that none are tangled, then ensure the \u003cstrong\u003estand\u003c\/strong\u003e is resting flat. If any assembly point seems uncertain upon receipt, contact us: we will transmit any additional information available.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003cdetails class=\"aa-q\"\u003e\n\u003csummary\u003eHow should it be maintained and stored?\u003c\/summary\u003e\n\u003cdiv class=\"aa-a\"\u003e\n\n\u003cp\u003eMaintenance is simple. Dust the \u003cstrong\u003emetal ring\u003c\/strong\u003e and the stand with a soft, dry cloth, without abrasive products. Avoid pulling on the links or twisting them: their tension and position are essential for the demonstration. For transport from one room to another, hold the device by the stand rather than the ring. Between uses, store it upright on a shelf or in a cupboard, away from shocks; its \u003cstrong\u003edepth of 15 cm\u003c\/strong\u003e facilitates storage. A cover or a simple cloth will effectively protect it from dust.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Atelier Atypique","offers":[{"title":"Default Title","offer_id":54860800786755,"sku":"1005011743325146-CN","price":199.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0231\/3365\/0991\/files\/S17bfe70810164a388a814a3f9a326fbdA.webp?v=1791061009","url":"https:\/\/atelierproatypique.com\/en\/products\/flipping-rings-force-decomposition-and-synthesis-demonstrator-physics-experiment-for-classroom-teaching-demonstration","provider":"Atelier Atypique","version":"1.0","type":"link"}