#dhsi2017 so why do we have a magnetometer to figure out true north orientation. Magnets. So maybe not true north. We are MAGNETIC #weardh17pic.twitter.com/AZwaXDJ5V6
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#dhsi2017 so why do we have a magnetometer to figure out true north orientation. Magnets. So maybe not true north. We are MAGNETIC #weardh17pic.twitter.com/AZwaXDJ5V6