text: tyndall effect?   the tyndall effect is caused by reflection of light by very small particles in suspension in a trasnparent medium. it is often seen from the dust in the air when sunlight comes in through a window, or comes down through holes in clouds. it is seen when headlight beams are visible on foggy nights, and in most x-file episodes when moulder and sculley check out some dark place with flashlights. im in chemistry too, and i just learned about it.  doing molarity, etc.?