Problems for the 36th IYPT 2023 Released by the IOC on July 24th, 2022. Please refer to the official and signed pdf as the authoritative source. 1. Fractal Fingers The effect of fractal fingering can be observed if a droplet of an ink-alcohol mixture is deposited onto diluted acrylic paint. How are the geometry and dynamics of the fingers influenced by relevant … Continue reading IYPT 2023 Problems