unicycling as a dynamical system (fwd)

Hello all,

I am forwarding a message I received from Bob Johnson, who is working on a
mathematical model of unicycling and has just joined the list. Send replies and
followups to the unicycling list, or to Bob at Bob.Johnson@durham.ac.uk.


Forwarded message:
> From Bob.Johnson@durham.ac.uk Fri May 6 08:27:05 1994 From:
> Bob.Johnson@durham.ac.uk Message-Id: <9336.9405061226@vega.dur.ac.uk> Subject:
> unicycling as a dynamical system To: bkonarsk@mcs.kent.edu Date: Fri, 6 May
> 1994 13:26:49 +0100 (BST) X-Mailer: ELM [version 2.4 PL23] Mime-Version: 1.0
> Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit
> Content-Length: 1461
> Hi Beirne . . . I picked up your name/address as author of unicycling FAQs on
> the net. Maybe you can steer me (a non-unicyclist I should say) to any
> existing literature on mathematical models of how unicycles work – i.e. how,
> according to standard laws of mechanics, anyone can turn the pedals in such a
> way as to make the thing stable upright, maybe even move around.
> My interest? Comes from a student project on a related topic of models
> of how you can balance a pole upright on your hand by moving your hand
> about. Most people can do this much more easily than ride a unicycle, I
> guess.
> Anyhow, the model I have now shows (in math terms) how balance is
> achieved and describes unstable and rocking modes too. I’d like to know
> how it fits in with what’s already known, both in terms of such theory
> and, of course, real life.
> Any help or suggestions much appreciated.
> With all good wishes, Bob.
> –
> ----------------------------------------- . . . cuius rei Dr R C Johnson
> [bob.johnson@dur.ac.uk] demonstrationem Dept of Math Sciences, Durham Univ,
> mirabilem sane South Rd, Durham DH1 3LE, UK. detexi. tel:
> (+44)/(0)91-374-2375 Hanc marginis fax: (+44)/(0)91-374-7388 exiguitas non
> ----------------------------------------- caperet.

Beirne Konarski | Subscribe to the Unicycling Mailing List bkonarsk@mcs.kent.edu
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