Resonance and Saw Blade

A circular saw blade is mounted horizontally on a rod and set into vibration by stroking the blade with a violin bow. These patterns are observed with the aid of small particles sprinkled on the surface. The patterns are shown to depend on the way the violin bow strokes the blade and are modified by attaching a clamp which forces a node at a particular location.
Equipment:
- Circular saw blade
- Support rod
- Sprinklings of various materials
- Clamp
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This video is part of the project "Videos of Physics Demonstrations", which is created by Dr. Galli and Dr. Amiri of Physics Department, Weber State University. To access the full library of the videos, please visit this link: www.weber.edu/physics/amiri_g...
Links to University and Department:
Weber State University Homepage: www.weber.edu/
WSU Physics Department: www.weber.edu/physics

[@Alan_Hans__]

I found this video while doing a bit of googling to see if it is possible to reduce the resonant hum that saw blades get when cutting firewood. Interesting to see the effect.