Wednesday, February 15, 2012

How deep is it?

Once a lead line was the only way to figure out how much water was beneath your ship. Now, there are all sorts of options for determining ocean depths from echosounders to satellite images. I suppose one could even venture out with reel of line and a weight, but not me as spooling in kilometres of line is quite tiring.

I wrote about how our technology evolved for determining ocean depths here.

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