Marine Sight Finder
Navigation
is the science of directing a craft by determining its position, course, and
distance traveled. Early mariners followed landmarks visible on shore and
studied prevailing winds for clues to direction and used the stars to set
their course. Marine sight finder, a historical, 19th century navigational
device, allowed ships to determine their position and distance. These were
used to measure the distance from the instrument to a selected point or
object and were widely popular amidst sailors. The navigator finds his position by measuring the course and distance he has sailed from some known point by the help of marine sight finder. Starting from a known point, such as a port, the navigator measures out the distance and each day's ending position would be the starting point for the next day's course-and-distance measurement.
