The Danish physicist Niels Bohr proposed in 1913 a model for nuclear construction, reminiscent of the planetary circuits of the Sun in the Solar System. Bohr's theory became a precursor to the so-called quantum physics whose formulas are incredibly precise. But there are strange things in motion when chemists and physicists describe the behavior of atoms and molecules: on the one hand, the microscopic particles appear to be in several places at the same time until we measure them, and on the other hand, the measurements always yield random results. The scientists who created the theory in the years 1900-1930 never agreed on how to understand the more paradoxical quantum physics. While today we are using the theory successfully - ranging from star birth and death to microchips in computers, smartphones, etc. Physicists constantly and deeply discuss the deeper meaning of quantum physics.Quantum physics is "Still Crazy After All These Years", and major international research programs are now working toward clever applications of quantum physics' finest features in super fast quantum computers that count on multiple numbers at the same time, and against new technologies for secure telecommunications and precise measurements that use particularly fragile quantum states of light and atoms. In the lecture, Professor Klaus Mølmer will discuss experimental observations and theoretical considerations that led to Bohr's atomic physics and theoretical formulas of quantum physics. Niels Bohr stated that "if anyone says he can think about the quantum problems without getting dizzy, it just shows that he has not understood the least of them." Klaus Mølmer will try to divide his own dizziness over quantum physics, its widely different interpretations and its recent theoretical and experimental achievements.