That’s why physicists use the term “cross section.” Unlike solid objects, elementary particles themselves behave as tiny waves of probability. And their interactions are not limited to a physical bump ...

A solid, circular cross-sectioned shaft experiences an axial torque T, as shown above. Angle of twist The hypothesis used in developing the stress and strain in the shaft is that all points on a cross ...

Polyhedra include prisms close prism A 3D shape with a constant polygon cross-section., ... Platonic solids close platonic solid A polyhedron with regular polygon faces.