TeachEngineering
Teach Engineering: Rock Solid
Rocks cover the earth's surface, including what is below or near human-made structures. With rocks everywhere, breaking rocks can be hazardous and potentially disastrous to people. Young scholars are introduced to three types of material...
TeachEngineering
Teach Engineering: Soapy Stress
To experience the three types of material stress related to rocks - tensional, compressional and shear - students break bars of soap using only their hands. They apply force created by the muscles in their own hands to put pressure on...