Date: Thu, 9 Dec 2010 14:18:26 -

Author: Zani, Gerald

Subject: Re: Chlorophyll fluorescence

Post:

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Tom,

Great observation!

Is this an effect of fluorescence by the chlorophyll?

- Jerry


On Thu, Dec 9, 2010 at 1:45 PM, Thomas Senior wrote:

> I was experimenting on my cat last night, CAREFULLY using red, green, and
> blue laser pointers to try to determine which she preferred. The results
> were inconclusive, as she desperately wanted to attack any color. Anyway,
> when the blue laser hit a green leaf of a house plant, i noticed the dot
> turned RED. It was pretty cool. Perhaps some of you would verify the
> observation. There is a demo where you grind up spinach and make a green
> solution of chlorophyll and a bright white light will fluoresce as it passes
> through. This blue laser on a green leaf may be easier.
>
> Tom
>
>
>

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Tom,Great observation!Is this an effect of fluorescence by =
the chlorophyll?- JerryOn Th=
u, Dec 9, 2010 at 1:45 PM, Thomas Senior wrote:



I was experimenting on my cat last night, CAREFULLY using red, green, =
and blue laser pointers to try to determine which she preferred. =A0The res=
ults were inconclusive, as she desperately wanted to attack any color. =A0 =
Anyway, when the blue laser hit a green leaf of a house plant, i noticed th=
e dot turned RED. =A0It was pretty cool. =A0Perhaps some of you would verif=
y the observation. =A0 =A0There is a demo where you grind up spinach and ma=
ke a green solution of chlorophyll and a bright white light will fluoresce =
as it passes through. =A0 This blue laser on a green leaf may be easier.

Tom









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