Source: https://iwant2study.org/lookangejss/06QuantumPhysics/ejss_model_photoelectriceffectwee3/photoelectriceffectwee3_Simulation.xhtml
Authors: Fu-Kwun Hwang, lookang, Félix J. García Clemente (original credits retained in HTML).
Licence: CC BY-NC-SA 4.0 (https://creativecommons.org/licenses/by-nc-sa/4.0/).
Adaptation 2026-09-13: local relative assets, removed host analytics/advertising, zero outer body margin for slide embedding. Physics equations unchanged.

Adaptation 2026-09-13 (file-open repair): guard optional parent.device access in changeOrientation. An opaque-origin iframe cannot read the host window; use the existing ordinary-browser layout when the Cordova bridge is inaccessible. Physics equations unchanged.