Free Radicals is a black-and-white animated film short by avant-garde filmmaker Len Lye.
The resulting "figures of motion" are set to music by the Baguirmi tribe of Africa.
"[3]Free Radicals screened in 1958 at the second Knokke-Le-Zoute Experimental Film Festival [fr].
[4] It was released on DVD as part of Rhythms, a collection of short films by Lye.
[5] In 2008, the film was included in the annual selection of 25 motion pictures added to the National Film Registry of the Library of Congress being deemed "culturally, historically, or aesthetically significant" and recommended for preservation.