Testicular navigation

Tiddy Oggy

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I am wondering if anyone here has ever tried ancient Polynesian navigation. I refer in particular to their alleged practice of locating an island as yet unseen over the horizon. They apparently did this by sensing the presence of smaller swells that were created by the dominant ocean swells being reflected back off the land in the direction of the observer.
Have any of you ever felt those reflected swells? A few years ago I was approaching remote Ascension Island in the South Atlantic in my 30-foot sloop. The island was still out of sight when my son and I took the opportunity of trying to see or “feel” the reflected waves. After an hour or two we had identified two sets of swells, one well established from the south-east trade winds, and another, weaker and smaller, from the southwest, presumably some left-over from the Roaring Forties. But neither of us could find a trace of anything coming from Ascension. When we failed to see any trace of them, we tried to “feel” for such swells through the seat of our pants by sitting in the cockpit, and we “felt” for strange “knocks”, or “hesitations” in forward progress, by standing up.
In short we tried every trick we knew but we couldn’t sense the return swells that the old Polynesian pilots could detect.
Then, just the other day, I was reading Beyond the Blue Horizon by Dr. Brian Fagan, emeritus professor of anthropology at the University of California, Santa Barbara. He is an expatriate Briton and a seasoned small-boat sailor. On page 60 he said this:
“The pilot watches the fading stars, feet apart, balancing easily against the pitch and roll of the fast-moving canoe . . . the weathered navigator leans over, eyes shut, feeling the movement of the waves through his swinging testicles. After everal minutes, he straightens up, looks again at the water, and then points to a course slightly more downwind.”
Now I have to admit that neither my son nor I even considered dropping our drawers and letting our wedding tackle swing free. Has anyone tried it with success?
 
There's quite a bit about it, and the other techniques used alongside, in David Lewis's fascinating books 'We, the Navigators' and 'The Voyaging Stars'.

The navigation knowledge and skills were handed down through families (male line only), so I get the impression you would need to have been doing, talking about, and thinking about this from childhood for it to be an effective navigation, er, tool.
 
I have noticed familiar wave patterns in places I visit, and thought ' if I was really tuned in like the Polynesians I might well be able to tell where I was by that '.

As for the swinging free that's a new one on me, but I've always wanted to try dowsing at sea, it certainly works on land.
 
Do not forget that the boat design was possibly different, so the rolling motion might have been different to a modern boat with deep fin or keel


so thinking it through-- how about adding a compensating lead weight as a pendulum ??????
 
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How much of it was local knowledge too? I was sailing at night, in fog across to Ostend many years ago, and along from the ride was an old ex barge skipper in his 80s. He came up , had a quick look round and told me I was too close to Long Sand Head and needed to come to Port a bit. I asked him how he knew and he said it was obvious from the shape of the waves. I seem to remember he was right, and he had his trousers on.
 
There's no doubt early sailors managed incredible feats of navigation, but I do wonder what percentage made it, and what percentage starved or drowned.

It's a bit like dodgy life rafts, you tend not to get people coming back to complain...
 
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