Welcome to the real world of doing research. You have found documentation about polymers. Now you have to research the meaning of the word "shaft" and see how it applies to concept of a shaft made of a polymer.
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"Don't disturb my circles." translation of Archimedes last words
Do your own homework. CR4 is not a homework cheat site; however, if you have questions about understanding concepts or how a portion of a problem is derived, these types of questions will be accepted.
Mine shaft, or tunnel shaft? Mechanical rotating shafts, or oscillating shafts? Shafts of light? Polymer light shafts? Drinking straw shafts? Shafts tied in knots? If so, what kind of knots? Inorganic polymer or organic (green) polymer?
Shafts of polymer woven into something (useful) to sit upon?
Shafts of polymer extruded from a machine into rods? And then cut into tiny bits of plastic to send around and extrude again? Not very efficient, that.
Please do elaborate.
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If it ain't broke, don't fix it. Just build a better one.
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