You are here: Technology > Media and communications > Lasers and recording A-Z

Lasers and recording A-Z


Analogue recording   A recording technique that makes a physical copy of sound waves. For example, the grooves in a record are a copy of the vibrations in an original sound. 

Q-files now has new sections specially written for younger readers. They are: Living world, Earth, Science, Human body, Prehistoric life, Space, History, Geography and Technology.


Find the answer