That was, for me, the least interesting of the failure modes mentioned, the most alarming being: > The phenomenon behind this is called creep rupture—the disen

That was, for me, the least interesting of the failure modes mentioned, the most alarming being: > The phenomenon behind this is called creep rupture—the disentanglement of the molecules of plastic over time, at a stress level significantly below the yield strength—yes, below the yield strength—of the plastic.