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        6-12

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        Do Materials Get Tired? Intro

        A materials science and engineering professor, Dr. Chris Muhlstein of Penn State University, reminds us that matter is made up of atoms, and atoms dictate the properties of materials. He explains that mechanical engineers measure the stress a material can take until it breaks. The ultimate for Dr. Muhlstein would be to make a material that will repair itself; he reminds us that our body can do this.

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