[Leica] Prism fun

[vick.ko at sympatico.ca (Vick Ko)]

I don't remember a prism alone, being very effective in making a 
rainbow.  I remember it only refracting the beam of light according to 
Snell's law.

You need light that isn't monochromatic, but I think the Pink Floyd 
cover was pretty much an artist's conception.

You may get a simple rainbow display off the back side of a CD disk, if 
the goal is to make a rainbow.

...Vick




On 9/16/2011 7:28 AM, Peter Cheyne wrote:
> Tomorrow I'll give an 8 year old boy a gift of a small prism , so he 
> can have fun making rainbows.  However, after playing with it myself 
> for a couple of hours, I can't even get a spectrum myself.
> I imagined it wouldn't be too hard to recreate the cover of Pink 
> Floyd's Dark Side of the Moon.
>
> Has anyone done this before?  Any tips to pass on to the young lad?
>
> Thanks,
>
> Peter
>
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