How MrBeast's Hit-Detecting Suits Work: Magnetic Foam Plus Hall Effect Sensors
wavefnx · x · 2026-11-10
Replying to MrBeast's Hunger Games video, @wavefnx sketches how the hit-detecting suits likely work: 1) blend magnetic powder (ferrite + strontium) into the foam weapons; 2) fit the suits with Hall effect sensors; 3) calibrate sensors against the powder for distance/collision detection; 4) add a cheap IMU as a secondary collision-detection oracle. A low-cost sensor combo that anyone could replicate.
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