2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42320In this talk I briefly discuss some features of a striking signature of TeV quantum gravity/strings and large extra dimensions: the production of exotic objects such as black holes, and their stringy precursors, the string resonances at large masses which can be dubbed `string balls'. The focus is on aspects less frequently discussed in other reviews of this subject.6 pages. Invited talk at the 12th Workshop on General Relativity and Gravitation, Tokyo, November 25-28, 2002High Energy Physics - Phenomenologytext