FIGURE 1. Marble tongs are notched lengthwise like a springless clothes pin (a). This provides students with an opportunity to see and feel the elastic deformation of rocks when stress is applied to the cut end (b). When the stress is removed, student can also see and feel them spring back as the stored energy is released (c). [Photo: Michael Hubenthal]
Originally uploaded in NAGT:Our Resources:In the Trenches:2018 - Volume 8:In The Trenches - January 2018.
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Jan10 18
