Subject 27 · Galilean & Special Relativity

Galilean & Special Relativity

Start on Galileo’s smooth-sailing ship, where no experiment can name the moving frame and velocities simply add. Then let Maxwell’s light break that picture and follow Einstein’s repair: two postulates, the relativity of simultaneity, time dilation and length contraction, the Lorentz transformations, spacetime diagrams with the twin paradox resolved — and finish with the calculus of momentum, energy, and proper time. Every subsection includes a responsive interactive model.