[ RadSafe ] From the Historical Files: What Ever Happened to N-Rays?

Cary Renquist cary.renquist at ezag.com
Wed Oct 13 16:57:38 CDT 2010

An important lesson on subjective results and the need for "blind"
controlled experiments...

What Ever Happened to n-Rays?

In early 1903, the news of the discovery of a new type of radiation in
France spread through the international physics community. Rene
Blondlot, one of the most famous physicists in the world, had made the
discovery at the University of Nancy. He named the new radiation n-rays
in honor of the university and city. The discovery of a new form of
radiation was certainly not an unprecedented event at the start of the
20th century. Several other types of radiation had been reported in the
dozen or so years previously (including x-rays). But none would be more
controversial than n-rays.


After spending three hours or more in witnessing various experiments, I
am not only unable to report a single observation which appeared to
indicate the existence of the rays, but left with a very firm conviction
that the few experimenters who have obtained positive results have been
in some way deluded.

Best regards,

Cary Renquist
crenquist at isotopeproducts.com or cary.renquist at ezag.com

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