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.
Electric fields Magnetic fields Electric fields arise from voltage. Their strength is measured in Volts per metre (V/m) An electric field can be present even when a device is switched off. Field strength decreases with distance from the source.