Monday, February 17, 2014

BBC News - Crowdsourced boats to map the seas

BBC News - Crowdsourced boats to map the seas: "For sailors, knowing the depth of the water beneath your boat is crucial - particularly if you do not want to run aground.

But large parts of the seas around the UK have not had their depth measured for well over a century, back when the method of choice was to throw over some lead and make note of when it hit the bottom."



'via Blog this'

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