Jump to content

Riess spiral

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Hertz1888 (talk | contribs) at 01:11, 26 September 2015 (→‎top: adding punct.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Riess spirals, or Knochenhauer spirals, are a pair of spirally wound conductors with metal balls at their ends. Placing one above the other forms an induction coil. Heinrich Hertz used them in his discovery of radio waves.[1] They are named for German physicist Peter Theophil Riess.

References

  1. ^ The Creation of Scientific Effects: Heinrich Hertz and Electric Waves, 1994, Jed Z. Buchwald; Ch 14: A Novel Device, pg 219.