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.
It originates from the pre 7th century Olde English personal name Ris or Rhys, meaning ardour or sometimes fiery warrior. The name first appears as Hris in the Anglo-Saxon Chronicles for the county of Cambridgeshire, in the year 1052, and as Rees in the Domesday Book of Cheshire, dated 1086.he first recorded spelling of the family name is shown to be that of William Res. This was dated 1203, in the Pipe Rolls of Lincolnshire, during the reign of King John of England, 1199 - 1216.