They also had observed that needles cooled from red heat and held in the north-south orientation (the earth's axis) would become magnetic. These more refined needle compasses could then be floated in ...
The four main points on a compass are: north, east, south and west. A compass is used to work out direction. A four-point compass can give a rough direction whereas a sixteen-point compass is much ...
The four main points of the compass are north, east, south and west. Half way between each of these there are four other points: north-east, south-east, south-west and north-west. This makes an ...