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.

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