Abstract

The two major artists, Camille Pissarro and Henry Van de Velde, participated in and discussed the Arts Nouveau exhibition held in 1895. Afterward Pissarro said, 'Le travail est un merveilleux réulateur de santé morale et physique', and Van der Velde praised the new style of arts of the engineers in view of 'l'ornamentation linéaire et dynamographique'. This paper examines the aesthetic of the arts and crafts through their expressions and the discourses of the sciences of work in the late nineteenth century.The science of work in this period consists in the idea of the time; the new experimental instruments examined and visualized the temporality of the effort and the fatigue during the movement of body and the perception. In this discovery of newly embodied time, the sense of the agreeable and the disagreeable replaced in the rhythm of the body and mind, and then the psychologists and aesthetician were concerned in the problem of the neurasthenia and the economy of effort. Also the new practices of artists interweaved with the concepts of this rhythm of body