Because children literally cannot see small details very well. This 
is why it is the visual angle that is important for children's media 
not how many pixels.

Cheers,

Alan

At 07:32 PM 9/20/2006, Bert Freudenberg wrote:
>Why is it then that kid's text books use much larger fonts than adult's?
>
>- Bert -
>
>Am 20.09.2006 um 16:58 schrieb Daniel Vainsencher:
>
>>The audience is kids, their eyes are still new, and built smaller
>>to boot :-)
>>
>>Test it on a kid, but I doubt you'll have a problem.
>>
>>Daniel
>>
>>Yanni Chiu wrote:
>>>Milan Zimmermann wrote:
>>>>On 2006 September 19 17:52, Bert Freudenberg wrote:
>>>>
>>>>>What would be really interesting is if someone could come up
>>>>>with a way
>>>>>to author projects at their native OLPC resolution (1200x900) while
>>>>>viewing them at half that size, that is, scaled by 0.5 in a 600x450
>>>>>window. This is because the actual resolution of the display is
>>>>>200 dpi,
>>>>>whereas a normal monitor has 100 dpi.
>>>>
>>>>
>>>>Hmm. I never really tried a resolution outside of the
>>>>"standard" (1280x960 etc), but if setting X to non-standard
>>>>resolution to 1200x900 / 600x450 works .. if I build a project on
>>>>the higher resolution and then restart X on  lower, and run the
>>>>project - is that what you have in mind?
>>>
>>>Working in 1200x900 resolution isn't really the problem.
>>>IIUC, the problem is having a true picture of the result.
>>>
>>>Suppose you manage to set your resolution at 1200x900,
>>>and merrily author a project on your 19" monitor (for example).
>>>You'll choose font sizes, box sizes, alignment, etc, based
>>>on what you see. But when this project is actually run on
>>>a real OLPC, it'll only be a quarter the size (because the
>>>screen resolution is 200dpi, not the more typical 100dpi).
>>>The result may be that some things may be illegible.
>>>
>
>
>