Listen to Protons for Less Than $100
With just a few materials like coils and water-filled bottles, you can build a DIY magnetometer for under $100 to listen to protons precessing in the Earth's magnetic field. This project offers an opportunity for citizen science enthusiasts to engage in sensing activities and explore proton magnetometry. The DIY setup allows for an affordable and accessible way to experiment with detecting protons and understanding magnetic field interactions.
IEEE Spectrum•