Paul Ulrich Villard (28 September 1860 – 13 January 1934) was a French chemist and physicist. He discovered gamma rays in 1900 while studying the radiation emanating from radium.

…was identified by French chemist Paul Villard in 1900. Designated as the gamma ray, it is not deflected by magnets and is much more penetrating than alpha particles. Gamma rays were later shown to be a form of electromagnetic radiation, similar to …

2017年1月13日 · Paul Villard, a French chemist, died Jan. 13, 1934, at age 74. Villard is one of the unsung contributors to what is sometimes called the Second Scientific Revolution, the one that began in 1895 with the discovery of X-rays, followed by radioactivity, atomic structure, and relativity, in short order.

Paul Ulrich Villard, né à Saint-Germain-au-Mont-d'Or le 28 septembre 1860 et mort à Bayonne le 13 janvier 1934, est un physicien et chimiste français. En 1900, il découvre un rayonnement provenant du radium, à la fois capable de traverser une fine plaque de plomb et insensible aux champs magnétiques [1].

2016年9月28日 · Today is the birthday of Paul Villard, the discoverer of gamma rays. He was born in Saint-Germain-au-Mont-d'Or, near Lyon, France, in 1860. Villard is often forgotten for his contributions to the understanding of radioactivity and the electromagnetic spectrum, overshadowed by Henri Becquerel (who discovered radioactivity) and Wilhelm Röntgen ...

Paul Ulrich Villard (* 28. September 1860 in Lyon; † 13. Januar 1934 in Bayonne) war ein französischer Physiker und Chemiker. Er entdeckte 1900 bei Arbeiten an Radium die γ-Strahlung als dritten Vertreter der ionisierenden Strahlung.

Paul Villard. 1860-1934. French physicist who discovered gamma radiation. During his study of nuclear reactions in 1900, Villard was the first to observe an emission, which he named gamma rays. He proposed that a gamma ray is radiation similar to light, rather than made up of particles like the previously observed nuclear reaction emissions ...

2000年9月1日 · It is shown how Paul Villard's chemical interests guided him in his studies of cathode rays, X rays and radium rays. His experiments in radioactivity led to the unexpected discovery of gamma rays in 1900.

The discovery of gamma rays by the relatively unknown French physicist Paul Villard is described in its historical context. From the beginning Villard gave a correct interpretation of the new rays, but his discovery was largely overlooked by the scientific community.

Paul Villard is almost forgotten today by the scientific community. He is given credit for having discovered gamma rays, but his discovery is almost never discussed in any detail. He stands, one might say, in the shadow of the giants Becquerel and the Curies.