If your laser will throw a beam, but not make it through the solution,
that is nothing comes out the other side of the bottle, then that is
really strange. From what you said before I thought that the beam was
going through without generating any Tyndall, but now you are saying
that it is being blocked from getting through at all. 100% absorption
is much stranger than no absorption. I cannot phantom how it could look
clear, yet selectively block that one laser.
I had asked before but did not see an answer. Does the shade of red look
different for that laser?
Marshall
Neville Munn wrote:
I think I may have found the answer. I believe the batteries need to
be *REAL* good for the laser to be powerful enough to pass thru a
liquid. Although the laser throws a good spot on the wall it's not
powerful enough to pass thru the solution. The other one which shows
lesser beam may be indicative of batteries in THAT laser starting to
go as well.
Will get more batteries and re-check and see how things pan out then.
I would not have thought that a laser beam must have minimum power
whereby it then fails to show thru a glass of liquid though, even
though it spots well on the wall.
N.
> Date: Wed, 14 Apr 2010 12:19:16 -0400
> From: [email protected]
> To: [email protected]
> Subject: Re: CS>Serious EIS Colour Questions.
>
> Neville Munn wrote:
> > Marshall, would it be possible for you to give me an explanation
> > of why number (3) showed *no* beam thru the solution at all?
> > And for that matter, why there is a difference in strength of beam in
> > the other two?
> > All lasers were used on the same solution.
> >
> > Three different red lasers,
> > > (1) 650nm+/-10 maximum output 1mW.......{strong beam passing thru
> > liquid}
> > > (2) 650nm+/-10 maximum output 5mW.......{fainter beam}
> > > (3) 630-650nm maximum output 1mW.......{no beam at all}
> >
> > N.
> >
> >
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> I have no idea. IT is working, right? Do they all look to be the same
> color red? Maybe you have the wavelength wrong on the 3rd one.
>
> Marshall
>
>
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