Éleuthère Mascart

Éleuthère Élie Nicolas Mascart (20 February 1837 – 24 August 1908) was a French physicist, a researcher in optics, electricity, magnetism, and meteorology.

Starting in 1858, he attended the École normale supérieure (rue d'Ulm), earning his agrégé-préparateur three years later.

After serving at various posts in secondary education, in 1868 he moved to the Collège de France to become Henri Victor Regnault's assistant.

Mascart was elected vice president of the British Institution of Electrical Engineers in 1900, the first non-Briton to hold the post.

Obituaries were published in the Journal de Physique théorique et appliquée[2] and in Nature.