If you are a sailor of the seven seas knowing where you are is important. Well, that’s true for landlubbers too.
But sailors used the plughole phenomenon for centuries to know if the equator was crossed.Now they tell me the white line across the road is it.

Back to the plughole.
Clockwise?  The north

Anticlockwise the south

and straight down… Right on the equator

Then people forgot the old skill and then they said it was fairytale. But a real divide, not an artificial East West of Greenwich.

Explain. http://www.scientificamerican.com/article/can-somebody-finally-sett/?WT.mc_id=send-to-friend http://www.scientificamerican.com/article/can-somebody-finally-sett/?WT.mc_id=send-to-friend s it.http:// http://www.scientificamerican.com/article/can-somebody-finally-sett/?WT.mc_id=send-to-friend http://www.scientificamerican.com/article/can-somebody-finally-sett/?WT.mc_id=send-to-friend s it.