Physics Teachers' Inventions Fair proceedings

Fair 9, Brno 2004

• Dvořák L.: Unusual measuring instruments 4: Measuring short time intervals, Fair 9, Brno 2004
  Measuring of the duration of a hammer blow against an anvil by charging a condenser, mathematical analysis included.
• Hubeňák J.: Measurement of the magnetic field, Fair 9, Brno 2004
  Measurement of a magnetic induction using a Hall effect sensor acquired from 5.25" CD-ROM.
• Machovič Ľ., Baník I.: Not all methods of weighing are equal, Fair 9, Brno 2004
  Nine unusual simple methods of weighing.
• Vícha V.: Utilization of a microphone for measurements in mechanics, Fair 9, Brno 2004
  Two laboratory exercises with a microphone connected to a sound blaster which is used for an accurate measurement of short intervals.