To explain how a reactor works after the Fukushima accident, he used the picture of the pressure cooker. When talking about winter tires, he also shows pictures of countless old tires on the seabed to make people aware of environmental pollution. And even the complex structure of the genetic material can explain Ranga Yogeshwar still vividly. For more than 25 years he has done so calmly and competently in the WDR science program "Quarks". Now he withdraws from the knowledge show, as the WDR announced.

"Farewell also means letting go," wrote the 59-year-old physicist and science journalist in a statement. A change always opens up the opportunity for further development both for the respective format and for him personally.

"The timing for the season handover is just right," Yogeshwar continues. With Mai-Thi Nguyen-Kim Leiendecker, who joins the moderator team this year, and Ralph Caspers, who has been in the team since 2010, there are two excellent people who shape and expand quarks in their own way would. "I pass the season off with a good feeling."

WDR / Nola Bunke; WDR / Linda Meiers

Ralph Caspers and Mai-Thi Nguyen-Kim Leiendecker

Despite his departure from "Quarks" Yogeshwar remains the WDR. He is currently working on a two-part report on "Artificial Intelligence" for the WDR, which will air in the spring of 2019.

WDR TV director Jörg Schönenborn thanked Yogeshwar: "As an excellent journalist and presenter pilot in a complex world, he offers valuable guidance to the audience, especially in this age of digitization, which brings with it new questions and challenges and I am pleased that he will continue to perform this role for the WDR with reports and special formats. "