We'll need to volunteer, appoint, request or other have several volunteers to help run the show today:
A marshall to keep things running smoothly/coordinator
A weight-master to balance the books
A data recorder to use THIS spreadsheet
Be sure and observe your tetrahedron *closely* as it experiences more and more stress. Take note of the parts of the tetrahedron as they are forced to carry more and more weight.
Take PARTICULAR notice of the part of your tetrahedron that fails
Draw an "As Crushed" drawing that shows how your tetrahedron collapsed under the weight of the books. Be sure and label those parts that failed first.
Write a paragraph that describes the performance of your tetrahedron using appropriate science/aerospace terms.