A census is a count and description of the population, taken by the government, arranged by locality and by household. Read more about Scotland Census Records. Click here for a list of the Family History Library microfilm numbers for the census records of Ruthwell. Below is information for any known surname indexes:
The concept of the electric field was first introduced by 19th century physicist Michael Faraday. It was Faraday's perception that the pattern of lines characterizing the electric field represents an invisible reality.
An electromagnetic field is the combination of two fields, an electric field and a magnetic field. They are oscillating, and are coupled together-an oscillating electric field causes an oscillating magnetic field, and vice versa. Electromagnetic radiation is the consequence of this-the fields move with the speed of light and 'radiate' from a source.