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I hope someone recreates theses pictures with CC license and posts them to the respective Wikipedia entries
The Elasticity (physics) entry doesn’t have a single image.
But the sister entry has so many. Obviously not the same authors at all.
Plasticity (physics)
Non-reversible deformation of a solid material in response to applied forcesThe elastic band would probably need more conformations to illustrate that only the slack deformation is plastic.
Wow, amazing!