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.
Born in Ohio in 1830. By 1880 Rhodes had settled in San Francisco as a patent agent. By 1883 he was listed as a painter. Source: Edan Hughes, Artists in California, 1786-1940 City Directory; Census. Nearly 20,000 biographies can be found in Artists in California 1786-1940 by Edan Hughes and is available for sale ($150).