This historic book may have numerous typos, missing text or index.
Purchasers can download a free scanned copy of the original book
(without typos) from the publisher. 1920. Not illustrated. Excerpt:
...: In consequence of discoveries made with these forms of matter,
and other experimentation, it is now held that the atoms consist of
aggregations of enormously attenuated particles which are called
corpuscles. "These are so small that the smallest and lightest atom
we know, that of hydrogen, contains from 800 to 1000 of these
corpuscles. Radium, however, is a heavy substance, one of the
heaviest known, and its atom contains about 200,000 corpuscles. The
corpuscles, however, are much smaller than is indicated by saying
that their size is the two hundred thousandth part of that of an
atom. For they do not nearly fill the space occupied by the atom.
They fill as little of the atom space, and are as far apart from
one another as would be the case with the same number of the
smallest grains of dust floating in the hollow sphere of a gigantic
football." * The corpuscles are also in a state of incessant
activity, and, while their movements are not certainly known, it is
thought that they are arranged in something like concentric rings
within the atom. If the atom of radium contains two hundred
thousand corpuscles, all moving, there must occur collisions, and
some of the corpuscles, under certain conditions, will finally be
jostled out of the system. This would be a case of disintegration.
Radium gives off rays and emanations because its atoms go to
pieces. * "Radium Explained." 20. Finally, radio-activity is now
believed to be almost universally present in all material
substances. "The truth probably is that, just as radium is an
extreme case among the radio-active substances, disintegrating more
rapidly than thorium, uranium, polonium, or actinium, so these
altogether are merely an extreme case of ordinary matter. There is
good reason to think that every elemen...
General Books LLC
|Country of origin:
Frank Channing Haddock
||246 x 189 x 1mm (L x W x T)
||Paperback - Trade
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