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Imaging the Invisible

Many chemical reactions involving solids are dependent on the nature of their surfaces. Atomic Force Microscopy (AFM) is a method for mapping surface forces of materials on the atomic scale. By mapping these forces, much can be learned about the surfaces of materials, where many interesting and complex phenomena occur.  This activity uses magnets to illustrate that even though we do not see the atomic forces, the interaction forces are there for us to experience.

Julie Tsui,
Aug 29, 2011, 3:19 PM