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I also love trebuchets!

Here's one I made purely for my own personal satisfaction several weeks ago
to match designs seen in medieval drawings. It stands about eight feet tall
and throws a heavy rubber 'dog ball' about 200 feet when its counterweight
is fully loaded with bags of sand. 

http://bit.ly/rSVak

These photographs show it with an almost empty counterweight bucket, gently
tossing water-balloons a much shorter distance at young people who
enthusiastically donated to a Ugandan orphanage in payment for being
targets!

It was play, not work, hence the unusually relaxed health-and-safety
constraints, though I was still being extremely careful...


Promoting public engagement with science
through a contagious delight in phenomena
*
[log in to unmask] * http://www.interactives.co.uk
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Give people facts and you feed their minds for an hour.
Awaken curiosity and they feed their own minds for a lifetime.
*
Ian Russell   (Now follow me on TWITTER: http://twitter.com/ianrusselluk )

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