2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98017Superthin and superlong solutions in 5D Kaluza-Klein gravity are considered. It is shown that they can be cosidered as a hybrid between Einstein's and string paradigmes.3 pages, talk given at the MG-10 conferenceGeneral Relativity and Quantum Cosmology$Δ-$String: A Hybrid Between Einstein's and String Paradigmestext