Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another. The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation.
Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
Isaac Newton, in Philosophiae Naturalis Principia Mathematica (1687) Laws of Motion, I
Upon the gale she stoop'd her side, And bounded o'er the swelling tide, As she were dancing home; The merry seamen laugh'd to see Their gallant ship so lustily Furrow the green sea-foam.
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