2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38332The experimental data on continuous investigation of changes in beta-decay count rate of Cs-137 and Co-60 from 9.12.98 till 30.04.99, are presented. The 27-day and 24-hour periods in these changes, inexplicable by traditional physics, have been found.14 pages, LaTeX, 11 PS figures, Submitted to Modern Physics Lett. AHigh Energy Physics - ExperimentExperimental investigation of changes in beta-decay count rate of radioactive elementstext