Warp wrote:
>   A more complicated invention of antiquity is the so-called south-pointing
> chariot. A Chinese invention which is, basically, a chariot with a figure
> on top which always points in the same geographical direction regardless of
> how the chariot is moved and turned. In other words, the figure acts as a
> non-magnetic compass, obviously very useful for travelling long distances.
> The invention might be as old as from 2600 BC (although with certainty it's
> at least from 200 AD).


Easy enough to gum up, though: just knock it over, and it loses its basis.

Impressive, nonetheless :)

...Chambers

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