The effect is the same, the light source of the laser is more coherent. Tyndall didn't have a laser at that time. The laser works better to do the same thing. Ken > >My research shows the Tyndall Effect or Phenemon refers to the conical shape >a flashlight beam will take as it passes through a highly colloidal sol. How >pray-tell does the thin line of a laser equate to this? >Johnny Silverseed
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