marking the needle direction each time join the points to show the field lines The needle of a plotting compass points to the south pole of the magnet. The behaviour of a compass shows that the ...

Until the arrival of GPS, the magnetic compass was the single most useful navigational tool ... and birds—are able to orient themselves relative to the Earth’s magnetic field. Among mammals, naked ...

Such reversals in the Earth's magnetic field, they'd tell you ... So hang on to your compass. For the foreseeable future, it should work as advertised.—Peter Tyson ...

The magnetic north pole, meanwhile, is the point in the Northern Hemisphere where Earth's magnetic field lines point directly ... effectively a digital compass built into it," said William Brown ...

the device is able to track the poles of a magnet in real-time and produce an approximation of what the field lines would look like on its electronic paper display. Relative field strength is ...

This "nano-compass" allows the microbe ... 3), which act as a nano-sized magnet that allows the bacteria to passively align with Earth's geomagnetic field lines in both the Northern and Southern ...