On Tue, Jan 24, 2006 at 01:31:41PM +1300, Russell McMahon wrote:
> > How about a x-y positioning table with a punch? 
> 
> 
> Or a magnifying glass :-)
> Now THAT would really be art.
> "Place in a bright sunlit position to ensure correct operation ..."

Ha!

Actually I once saw a very interesting sundial based on that principle
at Sudbury, Ontario's Science North. A large, 6 inch, diameter glass
sphere was positioned in the sun and a band of paper was positioned
behind it such that the sun was magnified and burned the paper over the
course of the day. Of course, you had to replace the paper, a special
non-flame propegating type, each day.

A strip of caps would make for an interesting display too...

-- 
pete@petertodd.ca http://www.petertodd.ca
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