When the Portuguese, under the leadership of Prince Henry the Navigator, ventured farther south along the west coast of Africa, they encountered navigational difficulties by assuming that the charts used in the Mediterranean could simply be extended. Over long distances the rhumb lines could not be taken as straight, and the charts bore no relation to the new methods of checking the dead reckoning that Portuguese astronomers and mathematicians had devised. These methods required a chart on which positions were expressed as latitudes and longitudes rather than bearings and distances. Such a chart had to embody a practical method of representing the curved meridians and parallels on a flat surface. Even for an area as large as the Mediterranean, this can be done without grossly falsifying either distances or directions, but for larger regions some distortions are inevitable, and a choice has to be made between alternative mapping techniques. On certain types of charts, distances can be shown accurately, but directions cannot; on other types, directions are reliably presented, but the scale of distance varies greatly between different parts of the chart. The navigator accepts the second type because the risk of lengthening the voyage is preferable to that of missing the target.
they provide sufficient boundary lines and conatin great structured mountains!
Mercator is not a map, but a map projection, i.e. a way of representing the continents on a map. The Mercator projection is only accurate between 30 degrees north and south latitude. The further away you go from that point, the greater the exaggeration.
latitude and longitude are the same as the Mercator
Mercator
It would show up smaller on a Mercator map projection
A device that is used to determine orientation on a map is a compass rose. The type of map projection that is most helpful in the navigation of ships is a Mercator map.
Geardus Mercator invented the Mercator Map in 1569
what is the shortest route from chicago to london using a globe and mercator
Mercator is not a map, but a map projection, i.e. a way of representing the continents on a map. The Mercator projection is only accurate between 30 degrees north and south latitude. The further away you go from that point, the greater the exaggeration.
Mercator projection what popular map in classrooms in the US is what kind of map?
Mercator projection what popular map in classrooms in the US is what kind of map?
mercator map
On a Mercator map it is a straight line.
latitude and longitude are the same as the Mercator
Mercator
The Mercator system is a cylindrical map projection. It is essentially the shape of globe on a flat surface. It was first designed by mapmaker Gerardus Mercator in 1569.
the Mercator map
It would show up smaller on a Mercator map projection