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How a futuristic material is able to change its properties from soft to rigid, and back again
A rolling pin is rigid and round to be able to roll over dough. Once these objects are fabricated, those properties cannot be changed. A pillow cannot flatten dough, and a rolling pin cannot ...
An alternative to the Euler equation of rigid body rotational dynamics
These laws also underlie the description of extended objects, such as when rigid bodies undergo rotation in addition to ...