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Across
  1. 2. A computer picture of areas inside the body created by high-energy sound waves.
  2. 4. a signature, especially that of a celebrity written as a memento for an admirer.
  3. 5. a distinct section of a piece of writing, usually dealing with a single theme and indicated by a new line, indentation, or numbering.
  4. 7. a message sent by telegraph and then delivered in written or printed form, used in the UK only for international messages since 1981.
  5. 8. a simplified drawing showing the appearance, structure, or workings of something; a schematic representation.
Down
  1. 1. a pictorial symbol for a word or phrase. Pictographs were used as the earliest known form of writing, examples having been discovered in Egypt and Mesopotamia from before 3000 BC.
  2. 2. an instrument that measures and records details of earthquakes, such as force and duration.
  3. 3. an instrument that measures and records details of earthquakes, such as force and duration.
  4. 5. a machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used especially as a lie detector.
  5. 6. a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.