Paris, Gauthier-Villars, 1883, in-8, de 68 pages et 1 planche, exemplaire broché, sous couverture d'attente, non coupé, Très rare tiré à part d'une des premières études de Becquerel sur les phénomènes de phosphorescence. Treize ans plus tard, en février 1896, Becquerel découvrira la radio-activité grâce aux étranges "radiations émises par phosphorescence". Très bon exemplaire, sous couverture d'attente. Couverture rigide
Reference : 61220
Bon de 68 pages et 1 planche
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Paris, G. Masson, 1883. 8vo. Contemp. hcalf, raised bands, gilt spine. Light wear along edges. Small stamps on verso of titlepage. In: ""Annales de Chimie et de Physique"", 5e Series, Tome 30. 576 pp. and 3 folded engraved plates. (Entire volume offered). Becquerel's paper pp. 5-68 and 1 folded engraved plate.
First apperance of Becquerels early importent paper on the infrared spectra. Becquerel’s early research was almost exclusively optical. His first extensive investigations dealt with the rotation of plane-polarized light by magnetic fields. He turned next to infrared spectra (in the paper offered), making visual observations by means of the light released from certain phosphorescent crystals under infrared illumination. Becquerel is known for his discovery of radioactivity, for which he received the Nobel Prize for physics jointly with the Curies in 1903, and for other contributions to that field which he made during the halfdozen years when he was most active in it.