For a signal whose fundamental frequency is f, the second harmonic has a frequency 2 f, the third harmonic has a frequency of 3 f, and so on. Let w represent the wavelength of the signal or wave in a specified medium.
Rhodes is a name that came to England in the 11th century wave of migration that was set off by the Norman Conquest of 1066. The Rhodes family lived in Lincolnshire at Rhodes, from whence their name is derived. Anglo-Norman names are characterized by a multitude of spelling variations.
The name has been spelled Rhodes, Rhoades, Rhode, Rhoads, Roades, Roads and others. First found in Lincolnshire where they were seated from very early times and were granted lands by Duke William of Normandy, their liege Lord, for their distinguished assistance at the Battle of Hastings in 1066 A.D.