Science in a coffee cup
Coffee is the most shared feature between all physicist, but a coffee cup is also a great playground for experiments. With Aleksi Bossart from Technorama Museum, we made a comprehensive review about all the physical phenomena that can be witnesses in a coffee cup. It is written in an accessible manner, and intended for undergraduate students or for pedagogical ressource. Experiments include (among others) optical caustics, acoustic degeneracy lifting, tea-leaf paradox or layers formation in latte (in video, inspired from this work). For each topic, a short movie and quantitative analysis with standard equipment is performed, and the results are compared with a minimal model. An experimental conference connected with this work has taken in place in June 2025 at Institut Pierre Gilles de Genes.
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