Overview of Satellite Navigation Systems

Famous quotes containing the words systems and/or satellite:

    Our little systems have their day;
    They have their day and cease to be:
    They are but broken lights of thee,
    And thou, O Lord, art more than they.
    Alfred Tennyson (1809–1892)

    Books are the best things, well used; abused, among the worst. What is the right use? What is the one end, which all means go to effect? They are for nothing but to inspire. I had better never see a book, than to be warped by its attraction clean out of my own orbit, and made a satellite instead of a system.
    Ralph Waldo Emerson (1803–1882)