Here's something to puzzle out on rainy days:
(https://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Umberto_Boccioni%2C_1913%2C_Dynamism_of_a_Cyclist_%28Dinamismo_di_un_ciclista%29%2C_oil_on_canvas%2C_70_x_95_cm%2C_Gianni_Mattioli_Collection%2C_on_long-term_loan_to_the_Peggy_Guggenheim_Collection%2C_Venice.jpg/1413px-thumbnail.jpg)
Dynamism of a Cyclist
(Dinamismo di un Ciclista)
painted in 1913
by the Italian Futurist
Umberto Boccioni (1882–1916)
(https://www.winercreative.com.au/photoblog/wp-content/uploads/2007/10/20071023225436_speedybike800.jpg)
And about 100 years after Boccioni painted Dynamism of a Cyclist...
...I took a slow shutter speed photo of a racing cyclist that explains it.
Unsurprisingly the Futurists drew some of their inspiration from the way the relatively slow film speeds of their day captured the frenetic relatively high speed motion of the dawning 20th century.
When my photo was exhibited it was titled "Balla's Bike" in homage to Italian Futurist Giacomo Balla's "Dinamismo di un cane al guinzaglio" (Dynanism of a dog on a leash)
If I had known of Boccioni's painting at the time it may have had a different title!