Keywords: double meaning, amusing, slightly sexual
I was sitting in my room, doing my homework, when I came across this
question in my polymer engineering textbook (_Principles of Polymer
Engineering_ by N. G. McCrum, C. P. Buckley, and C. B. Bucknall):
"3.12 In Chapter 5 a condition is derived (eqn (5.7)) for determining
when localized deformation ('necking') will spontaneously occur during
uniaxial extension of a bar of materal. Show that this condition is
never satisfied during uniaxial extension of an ideal rubber obeying
Gaussian statistics. Such a material therefore extends uniformly."
Go ahead and try to read it out loud, especially to a good friend. ;-)
(From the "Rest" of RHF)