L.H.O.O.Q. a late interview (Schwarz 203), Duchamp gives a loose translation of "L.H.O.O.Q." as "there is fire down below". Francis Picabia, in an attempt to publish "L.H.O.O.Q." in his magazine 391 could not wait for the work to be sent from New York City, so with the permission of Duchamp, drew the moustache on Mona Lisa himself (forgetting the goatee). Picabia wrote underneath "Tableau Dada par Marcel Duchamp". Duchamp noticed the missing goatee. Two decades later, Duchamp corrected the omission on Picabia's replica, found by Jean Arp at a bookstore. Duchamp drew the goatee in black ink with a fountain pen,
Marcel Duchamp financial disaster, but some optical scientists thought they might be of use in restoring three-dimensional stereoscopic sight to people who have lost vision in one eye. In collaboration with Man Ray and Marc Allégret, Duchamp filmed early versions of the "Rotoreliefs" and they named the film, "Anémic Cinéma" (1926). Later, in Alexander Calder's studio in 1931, while looking at the sculptor's kinetic works, Duchamp suggested that these should be called "mobiles". Calder agreed to use this novel term in his upcoming show. To this day, sculptures of this type are called "mobiles". Between 1912 and 1915, Duchamp worked with various