Welcome to the interview of the This is IT program, in which Dr. Maciej Kawecki and Prof. Krzysztof Sacha will talk about topics such as quantum physics, the observer effect, the quantum computer and, above all, time crystals. What are time crystals? How do they work and what are their applications? About this in today's interview. We invite you to watch, Dr. Maciej Kawecki & Professor Krzysztof Sacha | This is it.