Actually not mirrored, just duplicated and joined at the concrete face. Mirrored...

numpad0 on March 7, 2020 | parent | context | favorite | on: A googol-to-one gear ratio [video]

Actually not mirrored, just duplicated and joined at the concrete face. Mirrored would rotate in the same direction. Then it’ll “create two universe worth of energy” at the center of it.