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@usluck

Retro Futurism

Brennan Self Balancing Monorail (ca 1909)

August 6, 2025

Brennan Self Balancing Monorail (ca 1909)

by ItselfSurprised05

1 Comment

ItselfSurprised05 on August 6, 2025 6:11 pm

Wikipedia info: https://en.wikipedia.org/wiki/Gyro_monorail#Brennan's_monorail

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