Background:
The island of Guernsey and the other Channel Islands[?] represent the last remnants of the medieval Dukedom of Normandy, which held sway in both France and England. The islands were the only British soil occupied by German troops in World War II.
... where you can manually start the gyroscope. Once the gyro is spinning, tipping the device will cause the gyroscope to start precessing, with its axis slipping around in ...