Marcel Duchamp the Broken Arm", followed soon after. His "Fountain", a urinal signed with the pseudonym "R. Mutt", shocked the art world in 1917. "Fountain" was selected in 2004 as "the most influential artwork of the 20th century" by 500 renowned artists and historians. In 1919, Duchamp made a parody of the "Mona Lisa" by adorning a cheap reproduction of the painting with a mustache and goatee. To this he added the inscription "L.H.O.O.Q.", a phonetic game which, when read out loud in French quickly sounds like ""Elle a chaud au cul"". This can be translated as "She has a hot ass,"
Marcel Duchamp be considered "true". "The things themselves are not what science can reach..., but only the relations between things. Outside of these relations there is no knowable reality", Poincaré wrote in 1902. Reflecting the influence of Poincaré's writings, Duchamp tolerated any interpretation of his art by regarding it as the creation of the person who formulated it, not as truth. Duchamp's own art-science experiments began during his tenure at the library. To make one of his favorite pieces, "3 Standard Stoppages" ("3 stoppages étalon"), he dropped three 1-meter lengths of thread onto prepared canvases, one at a time, from a height