Page 3 - Think About Machinery and Engineering in Nature
P. 3

RIDGES


                    Scallop shells have ridges to

                           increase their strength.











































                   Ridges shift stress away from a

                         small area to a larger area.





                Make your own ridge experiment.

                Get two sheets of paper the same

                   shape, and two blocks, or large


                                                books.
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