On 5-4-2016 21:18, clipka wrote:
> Am 04.04.2016 um 14:05 schrieb Thomas de Groot:
>> On 4-4-2016 13:56, Stephen wrote:
>>> On 4/4/2016 12:41 PM, Le_Forgeron wrote:
>>>> Le 04/04/2016 12:30, clipka a écrit :
>>>>> Am 03.04.2016 um 22:41 schrieb Le_Forgeron:
>>>>>>>       stereo distance (???) //It is calculated the exporter or is
>>>>>>> declared by the
>>>>>>> user?
>>>>>>
>>>>>> It's the distance between the eyes.
>>>>>> It's about 13 cm usually, for adult human at least.
>>>>>
>>>>> @LanuHum: Don't listen to him -- the French are known to be freaks.
>>>>> Normal people have about half that inter-pupillary distance ;)
>>>>>
>>>> You are probably correct... I do not know where I picked that 13 cm.
>>>>
>>>
>>> It is the metric system. It can be confusing. ;-)
>>>
>>
>> [making a facepalm]
>> Yes, especially when you know that that distance is exactly 1 palm. :-)
>
> Actually, no -- 1 palm is about 7.5 cm, 7.7 cm, 7.4 cm, or exactly 7.62
> cm, depending on whether you're an ancient Egyptian, Greek or Roman, or
> a semi-modern Englishman. (Or anywhere from 18.2 to 29.3 cm if you're a
> 17th century continental European.)
>
> The IPD is typically about half a digit short of a palm.
>

I should have said: a Thomas palm :-)

-- 
Thomas

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