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From: Nekar Xenos
Subject: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 02:50:02
Message: <web.54f172c12f846770c13fa6bb0@news.povray.org>
-Nekar Xenos-


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From: Le Forgeron
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 06:56:38
Message: <54f1acf6$1@news.povray.org>
Le 28/02/2015 08:48, Nekar Xenos a écrit :
> -Nekar Xenos-
> 
> 
It's only a variation of the checker board in the shadow of a cylinder.


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From: Thomas de Groot
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 07:01:19
Message: <54f1ae0f$1@news.povray.org>
On 28-2-2015 12:56, Le_Forgeron wrote:
> Le 28/02/2015 08:48, Nekar Xenos a écrit :
>> -Nekar Xenos-
>>
>>
> It's only a variation of the checker board in the shadow of a cylinder.
>

???

-- 
Thomas


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From: Stephen
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 07:38:38
Message: <54f1b6ce$1@news.povray.org>
On 28/02/2015 12:01, Thomas de Groot wrote:
> On 28-2-2015 12:56, Le_Forgeron wrote:
>> Le 28/02/2015 08:48, Nekar Xenos a écrit :
>>> -Nekar Xenos-
>>>
>>>
>> It's only a variation of the checker board in the shadow of a cylinder.
>>
>
> ???
>
+1


-- 

Regards
     Stephen


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From: MichaelJF
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 09:55:01
Message: <web.54f1d6883f8472e4a48d75860@news.povray.org>
Stephen <mca### [at] aolcom> wrote:
> On 28/02/2015 12:01, Thomas de Groot wrote:
> > On 28-2-2015 12:56, Le_Forgeron wrote:
> >> Le 28/02/2015 08:48, Nekar Xenos a écrit :
> >>> -Nekar Xenos-
> >>>
> >>>
> >> It's only a variation of the checker board in the shadow of a cylinder.
> >>
> >
> > ???
> >
> +1
>
>
> --
>
> Regards
>      Stephen

May be Le Forgeron had this in his mind:

http://en.wikipedia.org/wiki/Optical_illusion

But this would only explain one part of the black-blue vs. White-Gold riddle.

Best regards,
Michael


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From: James Holsenback
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 09:57:01
Message: <54f1d73d$1@news.povray.org>
On 02/28/2015 07:38 AM, Stephen wrote:
> On 28/02/2015 12:01, Thomas de Groot wrote:
>> On 28-2-2015 12:56, Le_Forgeron wrote:
>>> Le 28/02/2015 08:48, Nekar Xenos a écrit :
>>>> -Nekar Xenos-
>>>>
>>>>
>>> It's only a variation of the checker board in the shadow of a cylinder.
>>>
>>
>> ???
>>
> +1
>
>
http://www.nytimes.com/interactive/2015/02/28/science/white-or-blue-dress.html?_r=0


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From: Stephen
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 10:22:20
Message: <54f1dd2c$1@news.povray.org>
On 28/02/2015 14:54, MichaelJF wrote:
> May be Le Forgeron had this in his mind:
>
> http://en.wikipedia.org/wiki/Optical_illusion
>

Yes, of course. I had forgotten about that.


> But this would only explain one part of the black-blue vs. White-Gold riddle.
>

More of an explanation here, Michael.

http://www.bbc.co.uk/news/uk-scotland-highlands-islands-31656935



-- 

Regards
     Stephen


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From: Stephen
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 10:35:19
Message: <54f1e037$1@news.povray.org>
On 28/02/2015 14:56, James Holsenback wrote:
> On 02/28/2015 07:38 AM, Stephen wrote:
>> On 28/02/2015 12:01, Thomas de Groot wrote:
>>> On 28-2-2015 12:56, Le_Forgeron wrote:
>>>> Le 28/02/2015 08:48, Nekar Xenos a écrit :
>>>>> -Nekar Xenos-
>>>>>
>>>>>
>>>> It's only a variation of the checker board in the shadow of a cylinder.
>>>>
>>>
>>> ???
>>>
>> +1
>>
>>
> http://www.nytimes.com/interactive/2015/02/28/science/white-or-blue-dress.html?_r=0
>


Thanks Jim but I think that the ??? was for "the checker board in the 
shadow of a cylinder"

When I looked at the image I see gold and white with a tinge of blue. 
And when I sampled the image on the BBC site the Gold was about 
<125,109,73> and the other <130,136,187>, roughly.

-- 

Regards
     Stephen


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From: James Holsenback
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 10:56:50
Message: <54f1e542$1@news.povray.org>
On 02/28/2015 10:35 AM, Stephen wrote:
> On 28/02/2015 14:56, James Holsenback wrote:
>> On 02/28/2015 07:38 AM, Stephen wrote:
>>> On 28/02/2015 12:01, Thomas de Groot wrote:
>>>> On 28-2-2015 12:56, Le_Forgeron wrote:
>>>>> Le 28/02/2015 08:48, Nekar Xenos a écrit :
>>>>>> -Nekar Xenos-
>>>>>>
>>>>>>
>>>>> It's only a variation of the checker board in the shadow of a
>>>>> cylinder.
>>>>>
>>>>
>>>> ???
>>>>
>>> +1
>>>
>>>
>> http://www.nytimes.com/interactive/2015/02/28/science/white-or-blue-dress.html?_r=0
>>
>>
>
>
> Thanks Jim but I think that the ??? was for "the checker board in the
> shadow of a cylinder"
>
> When I looked at the image I see gold and white with a tinge of blue.
> And when I sampled the image on the BBC site the Gold was about
> <125,109,73> and the other <130,136,187>, roughly.
>

then i should have replied to the OP inquiry about blue dress instead


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From: MichaelJF
Subject: Re: Can Pov-Ray illustrate the blue dress principle
Date: 28 Feb 2015 12:05:00
Message: <web.54f1f47f3f8472e4a48d75860@news.povray.org>
Stephen <mca### [at] aolcom> wrote:
> On 28/02/2015 14:54, MichaelJF wrote:
> > May be Le Forgeron had this in his mind:
> >
> > http://en.wikipedia.org/wiki/Optical_illusion
> >
>
> Yes, of course. I had forgotten about that.
>
>
> > But this would only explain one part of the black-blue vs. White-Gold riddle.
> >
>
> More of an explanation here, Michael.
>
> http://www.bbc.co.uk/news/uk-scotland-highlands-islands-31656935
>
>
>
> --
>
> Regards
>      Stephen

Thanks to you and to Jim,

I think I understand the white and blue part of the riddle. But turning no color
(black) into gold (or simply into a shape of yellow)only by ligthing? That is
alchemy in a way. Johann Boettger would have liked this trick and not reinvented
porcellain again;-)

One should consider, that the hole thing may be a promotion act only. Someone
has to sell some CD out there...

Best regards,
Michael


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