Teaching Science through History

Electomagnetism & the Telegraph

by Silvana Barbacci, Annalisa Bugini, Paolo Brenni & Anna Giatti

This case study highlights the early practical applications of the discoveries of electrodynamics and electromagnetism: the telegraph. It begins with the invention of the battery, continues through the experiments of Oersted and Ampere on the interactions between magnets and electrical currents and concludes with the social role of the telegraph in long-distance communications. The module combines narration and experimental activities for students.

NOS features include:

  • specialization of knowledge and public understanding of science
  • science and politics
  • scientific worldview & the public celebration of science

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