The röntgen (symbol R) is a unit of dosage of X-rays or gamma radiation, being the dose that liberates positive and negative charges of 2.58×10-4coulombs per kilogram of air. It is named after the physicist Wilhelm Röntgen.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
... in Yuzhno Sakhalinsk (http://www.sakhalintimes.com/)
See C. H. Hawes, In the Uttermost East (London, 1903).
(P. A. K.; J. T. BE.)
Based on an article from 1911 ...