In this video excerpt from NOVA’s "Making Stuff: Stronger", host and New York Times technology columnist David Pogue participates in a demolition derby to investigate the strength and toughness of steel. David and Mark Eberhart, author of Why Things Break, circle around a dirt track and survey the damage to their steel car frame. In a related activity, students test the toughness of some common materials using a spoon drop strength test and gain a deeper understanding about the physical properties of some everyday materials and how materials scientists determine how safe they are, how best to use them, and how to design better ones.
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