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Vactrains aren't "new". They were invented and patented in the 18th century. https://en.wikipedia.org/wiki/Vactrain https://en.wikipedia.org/wiki/Vactrain
by bufferoverflow 8y ago
Vactrains aren't "new". They were invented and patented in the 18th century.
https://en.wikipedia.org/wiki/Vactrain https://en.wikipedia.org/wiki/Vactrain