PIRA 3D30.70 Hoot Tubes

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Instructions / Notes:

• 4 ft and 3-1/2 ft glass tubes have wire screens near one end.
  
• Hold the tube over the burner so that the screen is in the flame.
  
• Heat until the screen glows.
  
• The tube hoots when it is removed from the flame.
  
• The sound stops when the tube is held horizontally.
  

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Last Updated 2023 - University of Texas at Austin Physics Dept. - All Rights Reserved.