This is a personal passion of mine. See photos: http://bit.ly/khDwn
I'd be delighted to advise. I'm guessing that you are talking about the
counterweight trebuchet principle.
Maybe phone me to discuss? 01663 743794 or 07771 762511.
Promoting public engagement with science
through a contagious delight in phenomena
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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.
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Ian Russell (Twitter: ianrusselluk)
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