These underwater gliders sound exactly what I was thinking of. And, I kept 'chewing' on the idea of how to recharge on long voyages. Of course, I didn't think of just resurfacing to recharge via solar cells.<div>
<br></div><div>Is there public domain data already in existence? When I was looking at Google Earth under the ocean today, it seemed to me there was a large amount of this data that was yet to either be collected and/or to be manipulated in a way that is usable.</div>
<div><br></div><div>Are there open source glider plans already in existence? Is there data that is public available in archives - just waiting to be processed? I think just mapping the surface of the ocean floor (or parts of it) would be a great challenge but very rewarding.</div>
<div><br></div><div>Sorry to ask so many questions...</div><div><br></div><div>Cheers,</div><div><br></div><div>Glen</div><div><br><div class="gmail_quote">On Sun, Feb 21, 2010 at 6:26 PM, Mikolaj Habryn <span dir="ltr"><<a href="mailto:dichro@rcpt.to">dichro@rcpt.to</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">This is (yet) another thing that I'm very interested in. The new<br>
hotness (where "new" is about a decade old) is underwater gliders,<br>
which have a mechanical method for changing their buoyancy between<br>
very slightly positive to very slightly negative and back, and use<br>
aerodynamic (well, hydrodynamic) surfaces to convert this to lateral<br>
motion. Recent research projects have crossed oceans - taking months<br>
to do so, in fairness, but nonetheless.<br>
<br>
They usually check in with satellites every few cycles by breaching<br>
and also taking the opportunity to recharge batteries via solar cells.<br>
I find the whole thing utterly fascinating, but it's substantially<br>
harder than balloons (although much easier than orbit).<br>
<br>
m.<br>
<div class="im"><br>
On Sun, Feb 21, 2010 at 10:00 AM, Glen Jarvis <<a href="mailto:glen@glenjarvis.com">glen@glenjarvis.com</a>> wrote:<br>
</div><div><div></div><div class="h5">> I was just trying to look on the ocean floor with Google Earth and there was<br>
> so much data missing.. suddenly, I starting thinking about a similar<br>
> exploration to inner space vs outer space. I know the method is completely<br>
> different.<br>
> Is it even possible to track GPS data, pressure data, etc? If we were to<br>
> create an airtight delivery system for a G1 - what do you think the chances<br>
> are for even getting a signal that far under water? Are there techniques to<br>
> boost the signal? How much do these problems parallel problems that may<br>
> occur with outer space delivery?<br>
> Underwater Robot for tracking, video, self propelling, etc.... even<br>
> possible????<br>
> I'm curious on opinions from others here..<br>
> Cheers,<br>
><br>
> Glen<br>
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