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.
Last name: Sanders. This famous surname is international being recorded in some form in every European country. There are at least three potential origins. These are firstly a derivative of the Greek personal name Alexander, meaning The defender, and which was first recorded in 2000 b.c. It was introduced into Britain by Crusaders and other pilgrims, from the Holy Land, in the 12th century a.d..