Search for Buried Treasure With This DIY Magnetometer
Cars That Think
APRIL 26, 2022
The notion of being led to a hidden object by virtue of the magnetic anomaly it creates must have really intrigued my 9-year-old self, because a decade after seeing that movie I decided to build a circuit to measure the strength of Earth’s magnetic field. With that information, I constructed what’s called a fluxgate magnetometer.
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