Working by hand, he inserted the small cylindrical object—in engineering terms an M30 hexbolt precisely fabricated from A-490 Type 3 alloy steel with a black iron-oxide finish—into two perfectly aligned holes, threading on the hex-nut to join a set of white steel beams. As an engineer added the precise torque and the bolt settled permanently into its place, it became
''Sans Titre,'' created for ITER in 2019 by sculptor Christine Corday, waits with other M30 bolts for use in the Tokamak Building roof structure.
The answer is in the intention.
Made from the same materials, to the same specifications, ''Sans Titre'' is indistinguishable from any other M30 hexbolt in the crane hall structure except for the inscription ''ART.'' On 13 November 2019, Director-General Bernard Bigot threaded the bolt into place—a work of art anonymously embedded in a work of science.