Short profiles of researchers, educators and activists interested in natural sciences and tourism became presented as broadcasts over the radio station – Radio Krakow. At 2013 they were edited by the Polish Academy of Arts and Sciences, as a compact disc entitled „Worth the memory – known and unknown”, which contains 114 such records. Each broadcast was elaborated and noted as one page by the first co -author (SWA), prepared to presentation by the second co -author (JS) and recorded in the radio-studio as a conversation led by both of them. Four diagrams illustrate selected att ributes of broadcasts: the date of birth of presented persons, their age, the main field of interest or activity and the year of broadcasting. The edited programme aroused a great interest and in consequence the cycle of broadcasts was not fi nished and is still continued.