Re: What is this piece of equipment?

[Tom Ford <tomford@THESCIENCESOURCE.COM>]

Okay, this would also be the ideal occasion to point out that the four
spring are uncalibrated and of too trivial a "k" to give data. I have
already pointed out that the apparatus is intended in the Principles of
Technology curriculum to use a load cell between the upper two platforms.
The springs simply assure that the middle one will not hang up on the
threaded rods if the bottle jack is not exactly in the center.

Brian, does Theopneust equilibrate with Deus ex machina?

Tom Ford

At 10:07 AM 6/15/04, Brian wrote:
> This would be the ideal occasion to demonstrate the different
>   energy requirements  of the screw jack versus the hydraulic
>   (or pneumatic) jack.
> Those of us who are inveterate railers against Physicists as
> Theopneust  take every opportunity to recall  that Feynman
> was caught in this  minor transgression.
>
> Brian W
>
> At 07:29 AM 6/15/2004, Tony wrote:
> >For those of you who were still wondering what this was...
> >
> >This device is used in principles of technology class (we taught here
> >more than a decade ago). A bottle jack was placed under the middle
> >piece. The jack is connected to an air source with a gauge. As the
> >pressure is increased in the jack, the middle piece is compresses the
> >springs upwards. This whole process is used to measure the work of the
> >jack.
> >-Tony
>
> > >  <http://physics.k12albemarle.org/what>
> > >
> > > -Tony
> > > = = = = = = = = = = = = = = = = = = = = =
> > > Tony Wayne
> > > twayne@albemarle.org
> > > http://physics.k12albemarle.org
>
>
> Brian Whatcott    Altus OK    Eureka!