2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52631A brief, non-technical and non-exhaustive review of D(irichlet)-branes and (some) of their applications is given.10 pages, 5 figures, contribution to the proceedings of XXXIXth Rencontres de Moriond on Electroweak Interactions and Unified Theories, references addedHigh Energy Physics - TheoryHigh Energy Physics - ExperimentHigh Energy Physics - Phenomenologytext