P3D Re: P3d projection

[jacob@xxxxxxxxxxxxxx (Gabriel Jacob)]

>> screen would be black! Also strictly speaking, infrared and
>> ultraviolet energy is not light since it is invisible. Therefore,
>> the term "visible light" is redundant. 
>
>Makes one wonder what an Infrared Light Emitting Diode (LED)
>does, doesn't it?
>
>:-)
>
>Mike K.

Actually I mentioned this to Tom off-list also. Strictly
speaking this is incorrect terminology. It's fine to use
these terms loosely if person A and B know the context they
are used in, but when decribing these concepts to someone not
well versed in these terms/concepts, it leads to wrong
conclusions. Of course the same problem exists in the other
dimension (3-D that is!). ;-) 

Gabriel


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