Archived posting to the Leica Users Group, 2011/09/16

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Subject: [Leica] Prism fun
From: imagist3 at mac.com (George Lottermoser)
Date: Fri, 16 Sep 2011 06:48:40 -0500
References: <7E72ED03-D3EC-411C-A2BE-E89C6C2D2251@yahoo.co.uk>

On Sep 16, 2011, at 6:28 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?

Place triangle of prism on piece of white paper.
in sunlight
with one of the vertical sharp edges in direction of sun
rotate slowly as needed
until spectrum appears projected on paper

Regards,
George Lottermoser 
george at imagist.com
http://www.imagist.com
http://www.imagist.com/blog
http://www.linkedin.com/in/imagist







In reply to: Message from geordiepete211 at yahoo.co.uk (Peter Cheyne) ([Leica] Prism fun)