Propagation
1960 · 13m · Canada
Directed by René Jodoin
Genres: animation, documentary
Tones: contemplative
An animated explainer uses color and sound to show how antennas send radio waves through space and to clarify the basic principles behind transmission.
Picked by Margot
The scouts
A 1960 NFB educational film about radio transmission sounds like the opposite of subversive—and it kind of is—but Jodoin's refusal to condescend to the audience, treating electromagnetic abstraction as worthy of genuine formal beauty, is its own quiet rebellion against the patronizing explainer-video tradition.
Propagation is a masterclass in didactic cinema that knows its lineage: the pedagogical avant-garde of the NFB, the marriage of scientific clarity and visual poetry that defines the best of mid-century institutional animation—Jodoin's color and sound design transform a technical premise into something that feels both rigorous and meditative.
The decisive move here is Jodoin's choice to make invisible electromagnetic phenomena *visible* through color and rhythm rather than literal representation—it's the kind of formal problem-solving that proves a small-budget animated explainer can achieve what big-budget science communication still struggles with.