At the beginning of the century Guglielmo Marconi invented Radio (1901) thus providing this century's must incredible achievement: Instant Communication. Although the telegraph was invented in 1774 by Lesage, it was only radio waves and all that came from it that really changed our lives as we know it. Before radio, our doings were only found out days or usually months later. We could get a head start easily. Now no matter where you are or what you do, you will be found out in days and sometimes in minutes. Keeping a secret is almost impossible. On the positive side you can be anywhere on this planet and communicate with anyone else anywhere on this planet with a maximum of a few seconds delay.