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Incorporated, a worldwide network of science museums and related institutions.
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Here in the UK, Richard Ellam [[log in to unmask]] has
recemtly been supplying the necessary equipment for this awesome demo.
Basically, it's a cylindrical steel mesh on a rotating bearing. You set fire
to some solvent-soaked material at the base of the cylinder and set it
spinning. Air drawn in by the rising flames begins to rotate and you
suddenly have a fire tornado.

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 

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