writes:

Simon Brooke writes:

Actually, this report
URL: http://www.geocities.com/CollegePark...32/pyfair.html
contradicts Jobst. It says that

'He reversed the front fork to nullify the caster action, and he
fitted a counter-rotating wheel on the front fork to effectively
nullify or cancel out the gyroscopic effects. When he was
finished, he still found that the bicycle could still be balanced
and steered quite easily... These experiments effectively
disproved the hypothesis that gyroscopic motion was the primary
force responsible for balance in a bicycle...'

There is one of the glaring failures of this report. There is mention
of riding no-hands mixed in with being able to control the bicycle.
In the above paragraph, one might assume he meant riding no-hands, but
in fact that is impossible and was not the case. Therefore, it does
not conflict with what I have said.

On the contrary he is quoted as explicitly saying he rode no hands.
See for example URL: http://www.dclxvi.org/chunk/tech/trail/

'...he found it difficult (although not impossible) to ride with his
hands off of the handlebars ...'

Dr Jones article is cited as
Jones, David E.H., "The Stability of the Bicycle", Physics Today
(April 1970): 34-40

I have not read it myself.

--
(Simon Brooke) http://www.jasmine.org.uk/~simon/

;; in faecibus sapiens rheum propagabit