The Mystery of Matter, Volume 10 |
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Page 81
... radium from the women of America in gratitude for her organization of radio- logical service in hospitals during World War I. The following selection is from her single public address during ... Radium 81 The Discovery of Radium, Marie Curie.
... radium from the women of America in gratitude for her organization of radio- logical service in hospitals during World War I. The following selection is from her single public address during ... Radium 81 The Discovery of Radium, Marie Curie.
Page 82
... radium , which could be separated in a pure state . . . . The difficulty was that there is not much radium in a mineral ; this we did not know at the beginning . But we now know that there is not even one part of radium in a million ...
... radium , which could be separated in a pure state . . . . The difficulty was that there is not much radium in a mineral ; this we did not know at the beginning . But we now know that there is not even one part of radium in a million ...
Page 138
... radium spontaneously gives off alpha particles , electrons , and gamma rays , and leaves radium emanation or radon . Radon is itself radioactive , and in a little while breaks down to radium - A , which is also radioactive and leaves ...
... radium spontaneously gives off alpha particles , electrons , and gamma rays , and leaves radium emanation or radon . Radon is itself radioactive , and in a little while breaks down to radium - A , which is also radioactive and leaves ...
Contents
Part CAN MATTER BE MEASURED? | 1 |
IS MATTER INFINITELY DIVISIBLE? | 13 |
Early Atomic Theory | 21 |
Copyright | |
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alpha particles alpha rays amino acids animals atomic bomb atomic weight become biological called carbon cell chemical chemist chemistry chromosomes compounds concept contain crystal deflected discovery earth electric electron elements energy entropy enzyme evolution existence experimental experiments fact fallout Figure fission forces frequency genetic germ heat helium human hydrogen idea individual Isaac Asimov isotopes kind light liquid lithium living organisms living things mass material matter Mendel metal molecules motion mutant genes mutations Natural Selection neutrons nuclear nucleic acid nucleotides nucleus orderly origin oxygen Pasteur pattern photographic physical physicist plants positive charge possible principle problem produced properties protein protons quantum question radiation radioactive radium rays reaction Reprinted by permission result roentgens scientific scientists Selig Hecht solid space species spontaneous structure substance sugar symmetry temperature theory thorium tion tube turn University uranium wave