Professor Dr. Horst Zuse recreated the legendary Z3 of his father Konrad Zuse and named his work Z3r for "Z3 reconstructed". In this interview we first learn something about the history, then the original Z3 is discussed a bit and finally Mr. Zuse reports on the work on his Z3r. Anchor links: 01:03 How did the Z3r come about? 06:43 Questions about the original Z3 07:08 The role of Helmut Schreyer (Konrad Zuse's friend) 10:40 Konrad Zuse's quote: Others leave the family behind, I leave the Z3 11:17 Zuse's patent Z26476 12:58 The 100th anniversary of IBM Germany 16:53 Konrad Zuse may have been badly advised when filing his patent application 18:30 About the conditional branch 22:49 The Z3r replica 25:30 The way of the Z3r through Germany 26:38 Presentations of the Z3r in the technology museum 27:31 DHL carries 2500 relays to the 5th floor 28:35 Problems with the replica: The switch cylinder (for clock) 29:06 Documentation used to build the replica 29:53 Christmas tree for addressing mechanism 30:33 Has the goal been achieved? 30:56 How does the replica compare to the original? Links: - Homepage: http://www.z3-computer.de/ Music used: - Valentine live (Wintergatan): https://www.youtube.com/watch?v=FHjdI7l3WDc Changelog: 2020/10/13 First version