Umberto Boccioni, Unique Forms of Continuity in Space, 1913, bronze, 3' 8" x 2' 11", Museum of Modern Art, New York, Artwork in the Public Domain, Photo via Wikimedia Commons.

Umberto Boccioni, Unique Forms of Continuity in Space, 1913, bronze, 3′ 8″ x 2′ 11″, Museum of Modern Art, New York, Artwork in the Public Domain, Photo via Wikimedia Commons.

Umberto Boccioni, Unique Forms of Continuity in Space, 1913, bronze, 3′ 8″ x 2′ 11″, Museum of Modern Art, New York, Artwork in the Public Domain, Photo via Wikimedia Commons.

Umberto Boccioni, Unique Forms of Continuity in Space, 1913, bronze, 3′ 8″ x 2′ 11″, Museum of Modern Art, New York, Artwork in the Public Domain, Photo via Wikimedia Commons.