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2 de jun. de 2023 · Marie Curie, en su biografía de Pierre Curie, describe la reacción de Becquerel –quien en 1896 descubrió que el elemento uranio emite rayos– ante la experiencia de recibir una quemadura de ...
23 de jul. de 2019 · Radiactivo es una biografía ilustrada de Marie Curie, la famosa científica polaca reconocida por su trabajo sobre la radioactividad y por ser la primera persona en ganar dos premios Nobel. Radiactivo también es la celebración de una conexión histórica, una versión de las pasiones de los Curie.
The dangerous gases of which Marie speaks contained, among other things, radon – the radioactive gas which is a matter of concern to us today since small amounts are emitted from certain kinds of building materials.
9 de feb. de 2010 · On December 10, 1903, Marie and Pierre Curie are awarded a Nobel Prize in Physics for their groundbreaking investigations of radioactivity, sharing the prize with French scientist A. Henri...
In the year 1896 H. Becquerel discovered that uranium emits spontaneously a radiation that produces an impression on a photographic plate through a sheet of black paper, and ionises the air. Mme. P. Curie proved that this property, later called radioactivity, is characteristic of the atom of uranium and is possessed also by thorium.
They examined many substances and minerals for signs of radioactivity. They found that the mineral pitchblende was more radioactive than uranium and concluded that it must contain other radioactive substances.
We found that pitchblende contains at least two radioactive materials, one of which, accompanying bismuth, has been given the name polonium, while the other, paired with barium, has been called radium. Other radioactive elements have been discovered since: actinium (Debierne), radiothorium and mesothorium (Hahn), ionium (Boltwood), etc.
