3C20.35 - Sirens

The brass sirens need to be lightly oiled on occasion and run on a very limited air flow
Code Number:
3C20.35
Demo Title:
Sirens
Condition:
Good
Principle:
Frequency of Sound Waves
Area of Study:
Acoustics
Equipment:
Home-made siren (galvanized), Brass sirens (2).
Procedure:

The brass sirens need to be lightly oiled on occasion and run on a very limited air flow

References:
  • Thomas B. Greenslade Jr., "The Siren", TPT, Vol. 42, # 7, Oct. 2004, p. 418.
  • George M. Hopkins, "Sound", Experimental Science, p. 169.
  • John Henry Pepper, "Sensitive Flames", Cyclopadic Science Simplified, p. 493.
  • 1.18:  Charles Taylor,  The Art and Science of Lecture Demonstration, p. 37- 40.
  • Joseph Frick, "#145 - The Siren", Physical Technics: Or, Practical Instructions for Making Experiments in Physics and the Construction of Physical Apparatus with the Most Limited Means", p. 171.
  • Gerard L' E Turner,  Nineteenth-Century Scientific Instruments,  p. 136.

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