A phase vector or phasor in physics and engineering signifies a sine wave whose amplitude and frequency are time-variant. The behavior of a sinusoid is decomposed by phasors into three independent ...

Illustration of a polaron The bright sphere is the electron, which is distorting the surrounding lattice. The wavy lines are high-order Feynman diagrams for the electron–phonon interaction. (Courtesy: ...

At OMA in the 1980s, Rem Koolhaas and his early colleagues, such as Elia Zenghelis, incorporated the diagram into the wealth of drawing types used by architects to create work. Added to the repertoire ...