1Q20.65 - Falling Pencil or Rod
- Shiliang Shan, Hemmifer A. Shore, Kristine Spekkens, "The Falling Rod Race", TPT, Vol. 58, #8, Nov. 2020, p. 596.
- Jearl Walker, "1.69 - Falling Chimneys, Pencils, and Trees", The Flying Circus of Physics, 2nd Ed., p. 34.
- Rod Cross, "The Fall and Bounce of Pencils and Other Elongated Objects", AJP, Vol. 74, # 1, Jan. 2006, p. 26.
- Vitor Oliveria, "Experiments With a Falling Rod", AJP, Vol. 84, #2, Feb. 2016, p. 113.
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