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Currently Playing: The Sound of those Buzzing Magnets

You know those magnets that buzz when you throw them in the air? Why do they make that sound? In this video, we'll learn about magnetism, inelastic collisions, the geometric series, and the short-time Fourier transform and spectrograms. Become a Patreon member: https://www.patreon.com/PhysicsfortheBirds 0:00 Intro 1:02 Modeling Magnetism 3:03 Collisions 4:09 Finding the Frequency 7:59 Audio Thank you to Caleb Birtwistle for captioning! You can try the code I used here: https://drive.google.com/drive/folders/1_PBTLS4fNHng44cxK1OjD-RchWch4wBa?usp=sharing Models of magnets: p.2-5, http://www2.fisica.unlp.edu.ar/magnet/Cullity_Graham.pdf Coulomb's original paper: https://www.ifi.unicamp.br/~assis/Coulomb-in-English.pdf Inelastic collisions: https://phys.libretexts.org/Courses/Merrimack_College/Conservation_Laws_Newton's_Laws_and_Kinematics_version_2.0/08%3A_C8)_Conservation_of_Energy-_Kinetic_and_Gravitational/8.08%3A_Relative_Velocity_and_the_Coefficient_of_Restitution STFT and other time-frequency transforms: https://arxiv.org/abs/2101.06707