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.
Electromagnetic fields at low frequencies. Electric fields exist whenever a positive or negative electrical charge is present. They exert forces on other charges within the field. The strength of the electric field is measured in volts per metre (V/m).