Abstract:We present here physics lessons on the application of the simple oscillation concept through measuring the rate of human respiration during various activities. The measurement used a smartphone’s magnetometer sensor, which recorded changes in the magnetic field of a permanent magnet that was attached to the stomach while breathing. Measurements were taken during rest, after walking for 10 min, and after running for 10 min. The experimental results showed that the magnetic field changed periodically with respir… Show more
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