An excerpt from CNN -
Spaghetti mystery that stumped famous physicist is finally solved
By Don Lincoln
Until this month, however, it was unknown if it is even possible to break a stick of spaghetti into only two pieces. Spoiler: It is. And researchers Ronald Heisser of Cornell University and Vishal Patil of MIT and their co-authors figured it out. All it takes is a twist.
If you take a stick of spaghetti and twist it before you bend it, you can break the stick into two. When the initial fracture occurs, energy is released as occurs in a normal break, but rather than propagating through the stick and breaking it, the energy goes into relieving the tension induced by the twist.
https://www.cnn.com/2018/08/25/opinions/spaghetti-mystery-feynman-lincoln/index.html
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