Introduction to eigenvalues and eigenvectors

Spectacular on Instagram: "In a tensile test like this, a steel rebar is secured in a machine that pulls from both ends with precise, controlled force, stretching the metal millimeter by millimeter until it finally breaks. What you’re seeing is the same physics that underpins every skyscraper, bridge, tunnel, and highway. Tensile strength shows engineers exactly how much pulling force a steel bar can endure before snapping. A 32-millimeter rebar like this can withstand over 570 kilonewtons of te