Noun
French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)
Source: WordNetEven so, just as Thompson had been beaten by Becquerel, so Curie was beaten in the race to tell of her discovery that thorium gives off rays in the same way as uranium; two months earlier, Gerhard Carl Schmidt had published his own finding in Berlin. Source: Internet
In a footnote on page 473, Stokes acknowledges that in 1843, Edmond Becquerel had observed that quinine acid sulfate strongly absorbs ultraviolet radiation (i. Source: Internet
He published his results in 1899. citation In 1900, Becquerel measured the mass-to-charge ratio ( m/e ) for beta particles by the method of J.J. Thomson used to study cathode rays and identify the electron. Source: Internet
In 1900, Becquerel measured the mass-to-charge ratio ( m/e ) for beta particles by the method of J.J. Thomson used to study cathode rays and identify the electron. Source: Internet
Biography Early life Becquerel was born in Paris into a rich family which produced four generations of scientists: Becquerel's grandfather ( Antoine César Becquerel ), father ( Alexandre-Edmond Becquerel ), and son ( Jean Becquerel ). Source: Internet
Henri Becquerel himself proved that beta rays are fast electrons, while Rutherford and Thomas Royds proved in 1909 that alpha particles are ionized helium. Source: Internet