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Introduction to Physics I ao Univ.-Prof. Dr. Dr. hc Paul Wagner Faculty of Physics University of Vienna ---- Timeline: 00:26 - Introduction / overview / concept of the lecture 07:42 - What is physics? 'Understanding', contrast to philosophy, phenomena as a totality of measurement results, explanation by reducing to basic equations 17:04 - System and model 24:31 - Particle model as the first example of a model 25:02 - EXP 1: Drop tube experiment (steel ball and cotton ball fall at different speeds in air, but at the same speed in a vacuum) 28:30 - FILM: Apollo 5 mission (hammer and feather falling on the moon) 30:38 - Wave model as another example of a model 30:47 - EXP 2: Wave tank 33:35 - EXP 3: Laser on double slit (interference) 35:59 - Wave - particle - dualism ----