It lakes good question to ask, because we speculate on unknown data.
It is hard to imagine they have made student mistakes...
the transparency question look less "student stupid" than others, but
someone handling an IR cam can easily understand the the measurement suffer
artifact...
as asked Jed,
Exploring the colors some more.
If you zoom in on the hottest area and use a color picker to get the color,
you can compare that specific color with a color temperature chart.
Looking at the hottest spot, the temperature could be between 1570C and
2426C. I used the color picker in Gimp to get th
Additionally, I think we may be able to examine the issue more
experimentally by using similar materials.
For example, here is a spiral grooved alumina tube.
http://dengfengjinyu.en.made-in-china.com/product/KqaEYeWMfSVC/China-Alumina-Tube-Spiral-Groove-.html
On Mon, Oct 13, 2014 at 6:12 AM, Jac
The trouble is, we don't know when that picture was taken and to what
extent the camera affected the color.
I suspect one of the engineers here could take the temperature data from
the caps vs. the core area and compare the dummy vs. the active run. Since
the caps are not incandescent, perhaps th
On Sun, Oct 12, 2014 at 11:43 PM, David Roberson wrote:
> I refer to the opposite effect in this case Harry. In other words, can
> the color appear to be too dark in the visual region to our eyes compared
> to the emission of thermal energy in the IR.
>
> Are there surfaces that are very poor em
t;
> -Original Message-
> From: H Veeder
> To: vortex-l
> Sent: Sun, Oct 12, 2014 10:56 pm
> Subject: Re: [Vo]:Incandescence is the wrong color
>
> what is the other direction?
> (I am having hard time following the flow of thought in this particular
> thread)
and I am quite tired.
Dave
-Original Message-
From: H Veeder
To: vortex-l
Sent: Sun, Oct 12, 2014 10:56 pm
Subject: Re: [Vo]:Incandescence is the wrong color
what is the other direction?
(I am having hard time following the flow of thought in this particular thread)
harry
; To: vortex-l
> Sent: Sun, Oct 12, 2014 4:39 pm
> Subject: Re: [Vo]:Incandescence is the wrong color
>
> Jed,
>
> As someone experienced with working at these kinds of temperatures in
> the glass industry, it was obvious that the temperature shown in the
> image is way belo
Dave
-Original Message-
From: a.ashfield
To: vortex-l
Sent: Sun, Oct 12, 2014 4:39 pm
Subject: Re: [Vo]:Incandescence is the wrong color
Jed,
As someone experienced with working at these kinds of temperatures in
the glass industry, it was obvious that the temperature shown in the
I would concur regarding the colour being too cold, but I have seen
previous pictures where digital cameras also do not show just how bright
something is glowing (from work in engine testing with exhausts at a
precisely measured 900°C) so would not be too critical on that alone. The
visible bandin
Jed,
As someone experienced with working at these kinds of temperatures in
the glass industry, it was obvious that the temperature shown in the
image is way below the reported operating temperature.
I don't know whether this is because it was warming up, or because many
consumer cameras don't
They might have taken this photo before it got white hot.
At lenr-forum.com I added this to the list of questions.
- Jed
Figures 12a and 12b show the reactor is incandescent.
It looks like the wrong color for a surface temperature as high as claimed.
I would say this is about 900°C. As much as I hate to cite Wikipedia . . .
See this color chart:
http://en.wikipedia.org/wiki/Incandescence#mediaviewer/File:Incandesce
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