The Science Times, the only part of the Gray Lady that's worth a damn, reports that students at MIT are replicating the fiber suspension bridges that the Incas built over canyons as part of their immense road system.
They didn't have iron, steel, or wheels, but they sure could weave fibers.
These things exist in the Himalayas, too, but how far back in time they go, I don't know.
I love reading about them, but I'm not so keen on crossing one.
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