At 09:49 AM 5/1/2010 +1030, you wrote:
[Last reply failed to go thru so I'll try again]
Well, it was just a simple question initially.
All I wanted to know was how a laser could put a visible spot on a wall
AFTER it passes through a solution whilst NOT showing a pathway of light
reflection/refraction off solids THROUGH that solution [and Yes, there ARE
particles in that solution}. And I would have thought that a laser either
works, or don't work?
How do you know there are particles in that solution if the laser didn't
show them up?
If it didn't hit any that you could see, why WOULDN'T it put a spot on the
wall?
Ode
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