Re: [ATM] Bronze reflectivity

[Sonya Gaskell <sonya@ggms.com>]

I'm not sure I understand.

Are you going to use the bronze specifically as a filter, much in the 
same way a gold coating is used in conjunction with cryogenics to create 
a rather pure infrared pass filter, ore (sic),

Is it some sort of creative anachronism or an historical investigation?

inquiring minds....

Sonya

Anthony Stillman wrote:


> Bronze reflectivity
>
> I’m gathering together reflectivity data for stuff I
> have. These polished surfaces will then form a set of
> standards to which I can compare the reflectivity of
> various formulations of bronze (speculum).
>
> The standards included overcoated evaporated aluminum
> on pyrex, polished pure nickel, polished pure silicon,
> and a small paper thin piece of polished pure
> platinum.
>
> Using just the aluminum standard and the microscopic
> spectral reflectometer I constructed from duct tape,
> cardboard tubing, and wooden dowels, I’ve collected
> some preliminary data
> <http://www.atmlist.net/contrib/atmer-at-flash-dot-net/reflect.jpg>.
> The most meaningful information that can be garnered
> from it is a 5% drop in reflectivity over six months
> for “ideal” speculum.
> Anthony
>
>
>
> aes
> Pronounced “ice”
> Latin for both bronze and money.
>
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
>
>
>





Anthony Stillman wrote:

>Bronze reflectivity
>
>I’m gathering together reflectivity data for stuff I
>have.  These polished surfaces will then form a set of
>standards to which I can compare the reflectivity of
>various formulations of bronze (speculum).
>
>The standards included overcoated evaporated aluminum
>on pyrex, polished pure nickel, polished pure silicon,
>and a small paper thin piece of polished pure
>platinum.
>
>Using just the aluminum standard and the microscopic
>spectral reflectometer I constructed from duct tape,
>cardboard tubing, and wooden dowels, I’ve collected
>some preliminary data
><http://www.atmlist.net/contrib/atmer-at-flash-dot-net/reflect.jpg>.
> The most meaningful information that can be garnered
>from it is a 5% drop in reflectivity over six months
>for “ideal” speculum. 
>
>Anthony
>
>
>
>aes
>Pronounced “ice”
>Latin for both bronze and money.
>
>_______________________________________________
>ATM mailing list http://www.atmlist.net/
>
>  
>

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