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.
In the spotlight for the third article in our new series on surname etymology is the name Morris, whose so-named hail chiefly from Wales and the Welsh/English border. There are two major schools of thought on the origin of the name â it is thought to derive from either Southern Europe or from Wales.