]> 2026-09-01T09:57:16+00:00 Obsolete scientific theories 14 en Obsolete scientific theories Humorism 0 en Humorism Phrenology 0 en Phrenology Recapitulation theory 0 en Recapitulation theory Cyclol 0 en Cyclol Rutherford model 0 en Rutherford model Plum pudding model 0 en Plum pudding model Phlogiston theory 0 en Phlogiston theory N ray 0 en N ray Cyclol 0 en Cyclol Humorism 0 en Humorism N ray 0 en N ray Phlogiston theory 0 en Phlogiston theory Phrenology 0 en Phrenology Plum pudding model 0 en Plum pudding model Recapitulation theory 0 en Recapitulation theory Rutherford model 0 en Rutherford model INST 102 en INST