[geocentrism] Re: The mine and gravity
- From: Regner Trampedach <art@xxxxxxxxxx>
- To: geocentrism@xxxxxxxxxxxxx
- Date: Fri, 26 Oct 2007 05:44:10 +0200
Thanks for finding this - quite interesting, and new to me.
Sounds like it got solved with the draft (the draft speed would
in general be higher in the middle of the shaft, forcing the plumb
lines apart).
Regards,
Regner
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Quoting philip madsen <pma15027@xxxxxxxxxxxxxx>:
> I have always wondered about pendulums in a mine.. so I went a googlin and
> found this interesting historical piece..Steven, I would be careful about
> finding any anomaly here. the author handles it very well in a modern sort of
> way. You might have his maths verified
>
> http://www.lhup.edu/~dsimanek/hollow/tamarack.htm
> The Tamarack Mines Mystery
> By Donald E. Simanek
>
> English measurement units (feet and inches) are used throughout this
> document, because those were the units used by the experimenters in 1901 and
> the units used in all of the source documentation.
> The essence of the story, as usually told, goes something like this. In the
> fall of 1901 J.B. Watson, Chief Engineer at the Tamarack copper mine (S. of
> Calumet, Mich.) suspended 4250 foot long plumb lines down mineshafts.
> Measurements showed that the plumb lines were farther apart at the bottom
> than at the top, contrary to expectations. Thus arose one of the
> long-standing mysteries of science.
> The Tamarack Mining Company,
> showing No. 2 Shafthouse. (c1902)
>
Other related posts:
