Figure 13 the symmetry content of some common objects I need
Figure 1.3 the symmetry content of some common objects.
I need every object on this list categorized into its point group. See options of point groups in the last link.
Unsharpened Pencil
Rubber Eraser
Equilateral Triangle
Folding Chair
Card Table
45 degree Triangle
Cube (needs 2 answers)
Baseball or Tennis Ball
Pyramid
http://www.fresnostate.edu/csm/ees/documents/Lab%201%20HW%202D%20symmetry.pdf
The link above (last page of PDF) shows what I need to do.
The link below lists the 32 Crystallographic Point Groups, I need each object placed into 1 of the 32 (not 1 of the 7 crystal stems).
http://pd.chem.ucl.ac.uk/pdnn/symm2/group32.htm
Solution
Unsharpened Pencil - Hexagonal 6mm
Rubber Eraser - Tetragonal 422
Equilateral Triangle - Trigonal 3m
Folding Chair - Triclinic 1
Card Table - Orthorhombic 222
45 degree Triangle -
Cube - 23 / m-3 / 432 / -43m / m-3m
Baseball or Tennis ball -
Pyramid -

