Kevin Wampler wrote:

> I actually had one of those as a kid -- it was indeed pretty cool.

I had a spiragraph kit.

It was actually annoyingly difficult to make any remotely interesting 
images. I thing the felt pens we used were just too blunt. Also very 
hard to make the gears rotate without slipping off. Or ripping the 
paper. Or the template sliding. Or...



I was just looking at a site explaining how to build one, and I suddenly 
had a killer flash of inspiration: THERMAL PAPER and a LASER POINTING 
DEVICE!

Think about it - 100% friction-free graphing! EPIC WIN!!!

I want to try this *so* badly right now...

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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