Original Paul Klee Twittering Machine envisions twitter prototype global social net medium (Die Zwitscher-Maschine) exibited now at MOMA Bauhaus 1919-1933 Workshops for Modernity with Gropius , Klee, Kandindnsky abstractions. NB The “twittering” refers to the birds, while the “machine” is suggested by the hand crank. The two elements are a fusing of the natural with the industrial world.