Building a Rocket Under a Waterfall (2018) is a masterful example of Yellin's "frozen cinema" technique, where three-dimensional photo collages are encapsulated within layers of laminated glass. This immersive sculpture presents a surreal yet poignant scene: a group of human figures collaboratively constructing a rocket beneath a cascading waterfall. The juxtaposition of industrial ambition with the raw power of nature invites contemplation on humanity's endeavors within the Anthropocene.

The meticulous layering of glass and collage elements creates a dynamic interplay of depth and perspective, engaging viewers from multiple angles. The work's title evokes a sense of wonder and absurdity, challenging perceptions of scale and context. Through this piece, Yellin explores themes of collective action, environmental consciousness, and the intersection of technology and nature.