Timeline for A strong neodymium magnet has no effect whatsoever on my phone compass. How is that possible?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Jul 19, 2019 at 16:13 | comment | added | Solomon Slow | Re, "...using some preinstruction or setting directions electrically." Those words don't explain anything. In order for a compass to know which way to point, there must be some physical phenomenon that the compass can measure. A magnetic compass senses the orientation of Earth's magnetic field lines. A GPS "compass" can't actually tell you which direction it points, but it can tell which direction it is moving based on very precise measurements of radio signals from satellites. etc. | |
| Jul 19, 2019 at 15:15 | comment | added | user137289 | @RonanCremin The magnetoresistive sensors cannot measure strong fields but they are better than Hall effect at low fields. | |
| Jul 19, 2019 at 14:56 | comment | added | mechanics | I dont think magnetometers and hall effect are distinct.They on a broad scale are one and the same. | |
| Jul 19, 2019 at 14:39 | comment | added | Ronan Cremin | Phones use a kind of solid state magnetometer for their compasses. They should, I think, measure any magnetic field. | |
| Jul 19, 2019 at 14:26 | history | answered | mechanics | CC BY-SA 4.0 |