English: Front views of a bowling ball, the blue-colored elements illustrating initial axis tilts of 0°, 30°, and 60° and the black rings indicating initial oil tracks.
Concepts are discussed in Chapter 13, "Create a Bowler's Tool Kit" in the book:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.