Students in the second grade of a secondary school in Strebersdorf were able to experience the principles of optics first hand in two-hour laboratory courses involving exciting experiments. Refraction, reflection and diffraction were vividly demonstrated. Highlights included the transmission of music via a beam of light through a jet of water, the analysis of water samples using a DIY microscope, and the determination of the width of a hair using light diffraction. LiDAR technology was also used to create a special class photo. An interferometer made the finest vibrations visible, while LiFi music streaming and infrared analysis of chocolate biscuits made further physical phenomena tangible. The event ended with a virtual journey to the end of the universe to illustrate cosmic optical principles, according to quantum expert Bernhard Schrenk from the Center for Digital Safety & Security.
