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  1. Jan 2017
    1. 1) The holes will come together and decreasing the volume getting a bight tighter ( elastic component) 2) After the elastic component, the stress orientation will promote cracks at a certain orientation and close cracks at perpendicular orientations ( there''s a crackle pop as the cracks are forming) and can form together.<br> 3) As the cracks grown and grow they eventually break completely with one big audible pop. ( if a rock breaks and no one is around to hear it....) 4) once the rock truly fails... we will get to that on monday But this is why earthquakes keep happening n existing faults, hwy do the hard work to make faults over and over again when you have an already failed structure (A Fault)

      Make materials with as few craks as possible ( Cast iron is one hunk of iron one "Crystal") if there are cracks there is no getting around them but a crackless object is incredibly strong