Author Archives: kevchang

Project Description

Title
    The Rotary Dial
Synopsis
    The Rotary dial is a component of a telephone that implemented a signal technology
    known as pulse dialing.
Objective
    To use animation to understand how to use the rotary dial and how it was successful in
    it’s function. A 3D model of the inner mechanisms is planned to be made.
Audience
    Middle school and older students interested in old technologies
Sources
  1. https://en.wikipedia.org/wiki/Rotary_dial
  2. https://www.howitworksdaily.com/rotary-dial-telephones/
  3. https://www.globalcallforwarding.com/learn/rotary-phones-work/
  4. https://ux.stackexchange.com/questions/55716/why-did-early-telephones-use-a-rotary-dial-instead-of-10-individual-buttons