Roger wrote:


The combined centre of gravity (whatever you mean by that) is a red
herring. If the stool doesn't fall over on its own accord it should be
possible with care to stand on it. If the floor is so uneven (or even if



The key words here are _with care_. A wobblt four legged chain on a
uneven floor advertises its instability. A three legged stool on the
same floor appears deceptively stable until you carelessly step upon it.

--
David Clark

$message_body_include ="PLES RING IF AN RNSR IS REQIRD"