00:00 Intro 00:19 Introduction by reference librarian Zoltán Novák 02:11 The entire presentation 01:02:12 Questions from the viewers 01:12:14 Outro ????☄️???? ???? ???? ???? ???????? Dr. József Vinkó from CSFK Miklós Konkoly-Thege Scientific advisor of the Institute of Astronomy and senior associate of the Department of Experimental Physics of SZTE. ???? Favorite: The idea of ​​black holes arose centuries earlier, when the natural law of gravity was first discovered. These are celestial bodies whose surface has such a strong gravitational attraction that even light cannot escape from them. Based on specific calculations, however, it was believed for a long time that these are only hypothetical objects and do not occur in nature. The radical change occurred sometime in the 60s of the 20th century with the detection of the first black holes from astronomical measurements. In the decades that have passed since then, it has become clear that there are a very large number of black holes in the Universe, moreover, in very different mass ranges. The presentation presents the currently known shapes of black holes, the various observational evidences, and some of the extreme physical phenomena produced by the strong gravitational field of black holes. ???? http://www.ek.szte.hu/event/a-sci-esz... ???? About the SCI-eszta collection: http://www.ek.szte.hu/sci-eszta-polc/ ???? Expected about our events: http://www.ek.szte.hu/events/sztekk ???? Music: Dusk 'til Dawn by @TrackTribe; The Truth by Anno Domini Beats @annodominination