A+Look+Inside+the+Toys'+Journey

They take their first glimpse of the Tri-County Landfill. An enormous stretch of land is covered with piles of unusable materials. Not far from the trash compactor, Woody, Buzz, and the rest of their friends are transported by a conveyor belt through the mouth of a tunnel, where the initial process of waste separation takes place. The attraction of Slinky's coils to the magnetic ceiling gives the toys a clue that metal objects will experience an upward force and they quickly try to make an escape. This useful device seen in the film is commonly found in forms of different tools. It is practical in that it saves time by quickly removing ** ferrous ** metals (materials containing iron) from ** non-ferrous ** (or nonmagnetic) items like plastic, paper, and aluminum.

During the waste separation process, two types of magnetic devices are used: powered ** electromagnetic fields ** and ** permanent magnets **. The first type is magnetized by running an electric current through wires. Electromagnets are easier to control and can be powered off when necessary. When it is charged, the device’s ** domains ** are positioned in the same direction. This device also works like a permanent magnet. As metal objects pass by, they are attracted to the electromagnetic force and the domains of the objects also become parallel. Without a charged source, they would point in various directions. The second type, on the other hand, does not rely on a charged source since it is able to create a magnetic field on its own. Because permanent magnets contain materials like iron, its domains are preserved to aim at one direction.

***Domain**: When a number of atoms line in the same direction 

__Process of Waste Separation__

First, the pulley (circular wheel) rotates the belt conveyor, carrying the waste materials. The strong magnetic force from the wheel causes an attraction of metal particles, such as iron and steel, to hold on to the surface of the conveyor until they are relocated to a separate area. The materials are then transported under the pulley and are discharged once it no longer comes in contact with the magnetic field. The clean materials are transferred to another section for further processing. To keep the non-magnetic items from mixing in with the ferrous metals, the pulley moves in a constant motion. Its momentum sends the materials to fall away from the area collecting metals.



Permanent magnets work as a recycling system, dividing materials into three types: aluminum, plastic and ferrous metal. A second method used in removing metal from non-magnetic items is the "metal recovery." It is made of magnetic properties that allow it to pick up bits of metal. Magnetic traps also play a crucial role in dividing ferrous materials. This device is suitable for liquid lines in order to purify them. The trap is submerged and it picks up smaller pieces of iron still left remaining in the liquid. From the toys' adventure through the landfill, their discovery of the magnets presents a deeper meaning behind physics. They understood the simple idea of magnetic properties. The scene from the film reveals another aspect in that people have recognized the source of the domains, magnetic fields, and its power.

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Additional Website:

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Magnets used in Waste Separation

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Works Cited

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Capel, Claudine. “Waste Sorting- A Look at the Separation and Sorting Techniques in

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Today’s European Market.” Waste Management World 16 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt 36pt;"><“http://www.waste-management-world.com/index/display/article-display/339838/articles/waste-management-world/volume-9/issue-4/features/waste-sorting-a-look-at-the-separation-and-sorting-techniques-in-todayrsquos-european-market.html”>. <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><span style="font-family: '맑은 고딕'; font-size: 12pt;">“ <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Best Practice in Glass Recycling.” CWC Nov. 1996. 13 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><“http://www.cwc.org/gl_bp/gbp2-0301.htm”>.

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">“End-of-Life Vehicle Management: Salvage Facilities and Vehicle Shredders.” EDF

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">16 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><“http://www.edf.org/documents/892_GC_salvage.htm”>.

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Works Cited

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Capel, Claudine. “Waste Sorting- A Look at the Separation and Sorting Techniques in

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Today’s European Market.” Waste Management World 16 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt 36pt;"><“http://www.waste-management-world.com/index/display/article-display/339838/articles/waste-management-world/volume-9/issue-4/features/waste-sorting-a-look-at-the-separation-and-sorting-techniques-in-todayrsquos-european-market.html”>. <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><span style="font-family: '맑은 고딕'; font-size: 12pt;">“ <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Best Practice in Glass Recycling.” CWC Nov. 1996. 13 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><“http://www.cwc.org/gl_bp/gbp2-0301.htm”>.

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">“End-of-Life Vehicle Management: Salvage Facilities and Vehicle Shredders.” EDF

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">16 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><“http://www.edf.org/documents/892_GC_salvage.htm”>.

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Works Cited

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Capel, Claudine. “Waste Sorting- A Look at the Separation and Sorting Techniques in

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">Today’s European Market.” Waste Management World 16 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt 36pt;"><“http://www.waste-management-world.com/index/display/article-display/339838/articles/waste-management-world/volume-9/issue-4/features/waste-sorting-a-look-at-the-separation-and-sorting-techniques-in-todayrsquos-european-market.html”>. <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><span style="font-family: '맑은 고딕'; font-size: 12pt;">“ <span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Best Practice in Glass Recycling.” CWC Nov. 1996. 13 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><“http://www.cwc.org/gl_bp/gbp2-0301.htm”>.

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">“End-of-Life Vehicle Management: Salvage Facilities and Vehicle Shredders.” EDF

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;">16 March 2011

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; margin: 0cm 0cm 0pt;"><“http://www.edf.org/documents/892_GC_salvage.htm”>.

<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">