Writing about compasses: magnetic declination, why phone compasses drift, the history of the rose, and finding direction without an instrument.https://onlinecompass.top/en-gbhttps://onlinecompass.top/blog/why-the-compass-rose-has-32-points/https://onlinecompass.top/blog/why-the-compass-rose-has-32-points/The rose was built by halving: cardinals, then ordinals, half-winds and quarter-winds. Where the names come from, and why it stopped at 32.Sat, 22 Aug 2026 00:00:00 GMTHistorycompass rosepointsnaminghttps://onlinecompass.top/blog/magnetic-declination-explained/https://onlinecompass.top/blog/magnetic-declination-explained/True north and magnetic north are different directions, and the angle between them is why your map bearing and your compass disagree. How to correct it.Tue, 18 Aug 2026 00:00:00 GMTFundamentalsdeclinationtrue northnavigationhttps://onlinecompass.top/blog/why-your-phone-compass-drifts/https://onlinecompass.top/blog/why-your-phone-compass-drifts/A magnetometer measures a very weak field, so almost anything nearby wins. What causes drift, what calibration really does, and how to tell them apart.Wed, 12 Aug 2026 00:00:00 GMTSensorsmagnetometercalibrationinterference