Re: Basis for new Death Ray discovered by Lenard
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Date: 09/29/04
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Date: Wed, 29 Sep 2004 03:29:24 +0000 (UTC)
Dwaine <invalid@invalid.com> wrote:
> Philipp Lenard after many experiments with aluminium foil of various
> thicknesses discovered that the plate of quartz that had, until then, been
> used to close the glass vacume tube, could be replaced by a thin plate of
> aluminium foil just thick enough to maintain the vacuum inside the tube, but
> yet thin enough to allow the rays to pass out. It thus became possible to
> study the rays, and also the fluorescence they caused, outside the
> discharge tube and Lenard concluded from the experiments that he then did
> that the cathode rays were propagated through the air for distances of the
> order of a decimetre and that they travel in a vacuum for several metres
> without being weakened.
> http://nobelprize.org/physics/laureates/1905/lenard-bio.html
Well damn, I don't know how people get through life without knowing
this.
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