Sentence Examples


  • Wynn's gentleness, Gabriel's ultimatum, the radioactive lake.
  • Hard on this came the recognition of the fact that freely charged positive and negative ions are always present in the atmosphere, and that a radioactive emanation can be collected.
  • Wilson (36) that a vessel in which freshly fallen rain or snow has been evaporated to dryness shows radioactive properties lasting for a few hours.
  • In 1901 Elster and Geitel found that a radioactive emanation is present in the atmosphere.
  • Elster and Geitel (58), having found air drawn from the soil highly radioactive, regard ground air as the source of the emanation in the atmosphere, and in this way account for the low values they obtained for A when observing on or near the sea.

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