United States Patent 2858551 Trampoline by Bruce C Sidlinger (1958) moon tides art and the slow arithmetic of

and the slow arithmetic of a Union held together by ink

and quietly proud of it

its rowhouses and church spires rendered in the patient lithography of a republic relearning how to admire itself

drawn three decades on by a country still negotiating with its dead

United States Patent 2858551 Trampoline by Bruce C Sidlinger (1958) moon tides art and the slow arithmetic ofUnited States Patent 2858551 Trampoline by Bruce C Sidlinger (1958) Sidlinger's engineering filing arrives at the precise moment "rebound tumbling" was leaping from gymnasts' studios into suburban backyards the schematic mapping every spring, hook, and tensioned bed with the rigor of a man who understood that flight, properly engineered, is just controlled falling. About the Source Bella Frye sources sports artifacts from American archives the U. S.