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Posted by dorayme on 02/17/07 01:27
In article <DpKdnd_xLNlBzkvYnZ2dnUVZ_silnZ2d@comcast.com>,
Ed Mullen <ed@edmullen.net> wrote:
> dorayme wrote:
> > In article
> > <tomstiller-B1D366.16213816022007@comcast.dca.giganews.com>,
> > Tom Stiller <tomstiller@comcast.net> wrote:
> >
> >> No gravity == no problem.
> >>> The equation is not good. If the ink is in the middle of the
> >>> plastic sleeve then there is no easy way to get it to to flow to
> >>> the ball.
> >> Shake it -- the way one does automatically when a ball-point won't write.
> >
> > You shake it and it goes to the wrong end from the ball, what
> > then? You shake it some more? You shake it in a direction? Be
> > careful, you might go the other way.
> >
> > You need to write some dying words, your strength is almost gone,
> > no note to leave your money to whoever, that awful relative gets
> > it... No gravity=no problem eh? Sure!
> >
> > Look, the fact is that the equation is no good. That pencil with
> > the "risk" to the eye (I mean, really!) is looking good all
> > around...
> >
>
> You take the "thing" that has fluid in it and you shake it in one
> direction: In this case, toward the opening from which you want the
> fluid to flow.
Ed, you have to trust me on this, I have a lot of experience in
space and you do not willingly design with any kind of shaking in
mind. Shaking is inherently wrong in principle out there. To be
avoided at least in any preparation. OK for emergency use maybe.
No, I would rather screw than shake.
What I have in mind is this, helped along by the caveat expressed
by William Mitchell, take one of those auto pencils with sticks
of lead inside that are pushed by screw turn when you wear out
the lead or it breaks.
http://www.cultpens.com/acatalog/Pentel_GraphGear_1000.html
--
dorayme
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