Sentence Examples

  • The study of radioactivity was pursued with great ability not only by the Curies and A.
  • It requires a radium salt of high radioactivity to be at all comparable in effectiveness with a good water-dropper.
  • The radioactivity is denoted by A, and A = signifies that the potential of the dissipation apparatus fell I volt in an hour per metre of wire introduced.
  • In connexion with the modern study of radioactivity, the electroscope has become an instrument of great usefulness, far outrivalling the spectroscope in sensibility.
  • This research opened a way of approach to the phenomena of radioactivity, and the history of the steps by' hich P. Curie and Madame Curie were finally led to the discovery of radium is one of the most fascinating chapters in the history of science.

How would you define radioactivity? Add your definition here.

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