One definition of torsion is the act of twisting or turning. Would this apply to the following examples?
- helicopter blades normally rotating around
- knees and arms bending
Hello and thank you for posting your question to Brainmass.
Since this question refers to physics, one might want to use the physical definition of torsion:
The stress or deformation caused when one end of an object is ...
163 words to explain whether helicopter blades and bending limbs count as torsion.